238
AMC 系 列 可 编 程 智 能 电 测 表
AMC Series programmable intelligent meters
------单 相 表 部 分
Single phase meters
(AI、AV、E、DI、DV)
安装使用说明书 V1.3
Installation and Operation Instruction V1.3
安科瑞电气股份有限公司
ACREL CO.,LCD
申 明
DECLARATION
版权所有,未经本公司之书面许可,此手册中任何段落,章节内容均不得被摘抄、拷贝或
以任何形式复制、传播。否则一切后果由违者自负。本公司保留一切法律权利。
No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any
form by any means, electronic, mechanical photocopying, recording, or otherwise without prior
permission of Acrel. All rights reserved.
目录
Contents
1. 概述 General..............................................................................................................................................................1
2. 产品型号规格 Product model specifications...........................................................................................................1
3. 技术参数 Technical parameter.................................................................................................................................1
4. 安装指南 Installation guide...................................................................................................................................... 2
4.1 外形及安装开孔尺寸 Outline and mounting cut out size...................................................................................... 2
4.2 仪表及开孔示意图 Schematic diagram of meter and its cut out............................................................................2
4.3 安装示意图 Schematic diagram of installation....................................................................................................... 3
4.4 安装说明 Installation instruction............................................................................................................................. 3
4.5 端子及接线 Terminal and connection..................................................................................................................... 3
5. 使用指南 Operating instruction............................................................................................................................... 5
5.1 按键 Press - key........................................................................................................................................................5
5.2 菜单符号及意义 Menu symbol and its meaning.................................................................................................. 5
5.3 编程流程(此流程以 LED 显示为例,LCD 显示与此类似)Program flow........................................................ 6
5.4 功能设置与使用 Function setting and using.........................................................................................................16
5.5 测量数据查看 Look over measuring data............................................................................................................. 11
6. 通讯指南 Communication guide............................................................................................................................ 12
6.1 概述 General...........................................................................................................................................................12
6.2 协议 Protocol..........................................................................................................................................................12
6.3 错误校验的方法 CRC............................................................................................................................................ 13
6.4 单相表通讯参量地址表 Word............................................................................................................................... 14
6.5 通讯应用 Communication application.................................................................................................................. 14
1
1. 概述 General
AMC 系列单相表,采用交流采样技术,可直接或间接测量单相电网或三相电网中某一相的电能、功率、电压、电流和频
率等。既可用于本地显示,又能与工控设备连接,组成测控系统。
AMC Series programmable intelligent single phase meters, adopting AC sampling technology, can measure electric energy, power, voltage, current and frequency of single-phase or three-phase grid directly or indirectly . It can be used for local display, and connecting
industrial control device to form measurement and control system.仪表可具有 RS-485 通讯接口,采用 Modbus-RTU 协议;可带模拟量输出、继电器报警输出、开关量输入/输出。根据不同
要求,通过仪表面板按键,对变比、报警、通讯等参数进行设置和控制。
Meters have RS-485 communication interface, adopting compatible Modbus-RTU protocol, can bring analog output, relay alarm
output and switch input, switch output. According to different requests, ratio, alarm, communication etc. can be set and controlled by
pressing related keys on instrument panel. 2. 产品型号规格 Product model specifications
仪表型号
Type基本功能
Functions外形
Shape可选功能
Optional functions AMC48-AI
AMC48-AV
单相电流、电压测量;
LED 数码管显示
Single phase current, voltage measurement, LED digital display
48
方形
48 Square 1、一路 RS485 通讯(/C)
1 channel RS485 communication (/C )
2、一路变送输出(/M)
1 channel analog output (/M ) AMC48L-AI
AMC48L-AV
单相电流、电压测量;
LCD 液晶显示
Single phase current, voltage measurement, LCD liquid crystal display
AMC72-AI
AMC72-AV
AMC72-E
单相电流、电压、电能测量;
LED 数码管显示
Single phase current, voltage, electric
energy measurement, LED digital display
72
方形
72 Square
1、一路 RS485 通讯(/C)
1 channel RS485 communication (/C )
2、一路变送输出 (/M)
1 channel analog output (/M )
3、一路报警(/J)
1 channel alarm(/J)
4、变送输出+RS485 通讯(/MC)
Analog output + RS485
communication( /MC )
5、RS485 通讯+开关量 2DI (/KC)
RS485 communication+switching2DI(/KC )
6、RS485 通讯+开关量 2DI2DO(/KC)
RS485 communication + switching2DI2DO
(/KC )
7、一路报警+一路变送输出+RS485 通讯
(/JMC)
1 channel alarm+1 channel analog output
+RS485 communication( /JMC )
AMC72-DI
AMC72-DV
直流电流、电压测量;
LED 数码管显示
DC current,voltage measurement,
LED digital display
AMC72L-AI
AMC72L-AV
AMC72L-E
单相电流、电压、电能测量;
LCD 液晶显示
Single phase current, voltage,electric
energy measurement, LCD liquid crystal display
AMC72L-DI
AMC72L-DV
直流电流、电压测量;
LCD 液晶显示
DC current,voltage measurement,
LCD liquid crystal display
2
AMC96-AI
AMC96-AV
单相电流、电压测量;
LED 数码管显示
Single phase current, voltage, measurement, LED liquid crystal display
96
方形
96 Square
1、一路 RS485 通讯(/C)
1 channel RS485 communication (/C )
2、一路变送输出(/M)
1 channel analog output ( /M )
3、一路报警(/J)
1 channel alarm(/J)
4、变送输出+RS485 通讯(/MC)
Analog output + RS485
communication(/MC)
5、RS485 通讯+开关量 4DI2DO(/KC)
RS485 communication + switching4DI2DO
(/KC )
6、一路报警+一路变送输出+RS485 通讯
(/JMC)
1 channel alarm+1 channel analog output
+RS485 communication( /JMC )
AMC96L-AI
AMC96L-AV
单相电流、电压测量;
LCD 液晶显示
Single phase current, voltage, measurement, LCD liquid crystal display
注: /J 为一路继电器输出(与第二路开关量输出复用),如有特殊需求请咨询本公司。
/J is 1 channel relay output (multiplexing with second channel switching output),please consult our company for special requests. 3. 技术参数 Technical parameter
技术参数
Technical parameter指标
Value输入
Input
标称值
Nominal value交流电压:AC100V、220V、380V;交流电流:AC1A、5A
AC voltage: AC 100V, 220V, 380V; AC current: AC1A, 5A
特殊规格可事先咨询 Consult special specification in advance直流电压:1000V、300V;直流电流:75mV、10V、0-20mA、4-20mA、5A,10A;
DC voltage:1000V、300V;DC current:75mV、10V、 0-20mA、4-20mA、5A,10A;
特殊规格可事先咨询 Consult special specification in advance过载
Over load
电压:1.2 倍持续,2 倍持续 1 秒;电流:1.2 倍持续,10 倍持续 1 秒
Voltage: 1.2 times continuous, 2 times continuous 1 second; Current: 1.2 times continuous, 10 times continuous 1 second
频率
Frequency
45~65Hz功耗
Power consumption各电压、电流输入回路功率均小于 0.5VA
Power consumption of each voltage, current Input circuit is less than 0.5VA
精度等级
Accuracy class频率 0.05Hz,其他 0.5 级
Frequency 0.05Hz,other 0.5 class功能
Function显示
Display
LED 或 LCD 显示
LED or LCD display
3
通讯
Communication RS485, Modbus-RTU 协议
RS485, Modbus-RTU compatible protocol
报警
Alarm
1 路继电器输出,1A/30VDC,1A/250VAC
1 channel passive relay ,1A/30VDC, 1A/250VAC
模拟量
Analog
DC4 ~20mA、DC0~20mA(负载 <500Ω ),DC0~5V(负载 > 1 k Ω)等,
DC4~20mA,DC0~20mA( load<500Ω,DC0~5V(load>1kΩ)etc.脉冲
Pulse输出方式:1 路集电极开路的光耦脉冲
Output mode: photocoupler pulse with 1 channel collector open circuit
脉冲常数:15000 imp/kWh
Pulse constant: 15000 imp/kWh
幵关量
Switching
输入
Input
干接点输入,内置电源,光耦隔离
Dry contact Input, built-in power supply ; optoisolator输出
Output
两路开关量输出,常开继电器触点
交流表容量:1A/30VDC 或 1A/250VAC
直流表容量:2A/30VDC 或 2A/250VAC
2 channel switching output, NO relay contact, AC capacity: 1A/30VDC, 1A/250VAC
DC capacity: 2A/30VDC, 2A/250VAC
电源
Power supply
电压范围
Voltage range AC220V±10%
功耗
Power consumption <5VA
绝缘电阻
Insulation resistance ≥100MΩ
工频耐压
Power frequency withstand voltage电源端子组与信号输入、输出端子组之间 2kV/1min ( RMS)
Between power supply set of terminals and signal Input, output set of terminals 2kV/1min (RMS)
平均无故障工作时间
Mean time between failures ≥ 50000h
环境
Environment 温度
Temperature工作:-10ºC~+55 ºC
Operation: -10 ºC~+55 ºC
贮存:-25 ºC ~+70 ºC
Storage: -25 ºC ~+70 ºC
湿度
Humidity
≤93%RH,不结露,不含腐蚀性气体
≤93%RH, no condensation, without corrosive gas
4
海拔
Altitude ≤ 2500m
4. 安装指南 Installation guide
4.1 外形及安装开孔尺寸 Outline and mounting cut out size仪表外形
Shape面板尺寸
Panel
壳体尺寸
Housing
开孔尺寸
Cut out
单位:mm
Unit: mm宽
Width
高
Height
宽
Width
高
Height
深
Depth
宽
Width
高
Height
48 方形
48 Square 48 48 44 44 100 45 45
72 方形
72 Square 75 75 66 66 98 67 67
96 方形
96 Square 96 96 86 86 92 88 88
4.2 仪表及开孔示意图 Schematic diagram of meter and its cut out
4.3 安装示意图 Schematic diagram of installation
4.4 安装说明 Installation instruction安装时,将仪表嵌入安装孔内,装上固定支架,拧紧螺钉,使仪表安装牢固,不松动即可。48 外形为卡簧片挤压安装。
When meter is installing, embedded meter into mounting hole, restore fixed support, tighten screw, fix meter firmly. 48 shape is the
card reed extrusion installion.
5
4.5 端子及接线 Terminal and connection
4.5.1 辅助电源与信号输入端子 Auxiliary power and signal input terminal
交流系列 AC series
L
N
IA
* IA
电流输入
Current input
S1 S2
*
*
L N
FUSE
辅助电源
Auxiliary power
L
N
1 2 4 5
L
N
UA UN
FUSE
1114
电压输入
Voltage input
A
N
UA UN IA
* IA
FUSE
电能表接线
Electric energy meter
S1 S2
*
*
1114 4 5
直流系列 DC series
4.5.2 附加功能端子 Additional function terminal
24 25 28
DI1 DI2 COM3
24 25
DI1 DI2 COM3
26 27 28
DI3 DI4
21 22
A B
17 18
E+ E- 34 35 36 37
DO1 DO2/J
55 56
A01
57 59
A02 A03 COM1
+ + +模拟量输出
55
A0
59
COM1
+模拟量输出 开关量输出 开关量输入 RS485通讯 脉冲
-
Analog output Analog output Switching output Switching intput
注:
1.符号“*”表示电流进线端,该接线仅供参考,具体以仪表上接线图为准;
2.报警输出继电器与开关量输出 D02 复用。
Note:
RS485
Communication Electric
energy pulse
+
-
U+ U- FUSE
4 9
电压(1000V)输入
Voltage(1000V)input
+
-
I+ I-电流(75mV)输入
Current(75mV)input
7 9
75mV分流器 去负载
L N
FUSE
辅助电源
Auxiliary power
L
N
1 2
+
-
U+ U- FUSE
5 9
电压(300V)输入
Voltage(300V)input
+
-
U+ U- 6 9
电压(10V)输入
Voltage(10V)input
+
-
I+ I-电流(10A/20mA)输入
Current(10A/20mA)input
8 9
6
1.The symbol “*”indicates current input terminal, this wiring is for reference only , the specific wiring diagram on the meter prevail. 2.Alarm output relay duplex with switching output D02. 4.6 注意事项 Notice 4.6.1 电压输入 Voltage Input
输入电压不得高于产品的额定输入电压的 120%,否则应考虑使用 PT;
在电压输入端须安装 1A 保险丝;
The input voltage must not be higher than the rated input voltage of the product, , otherwise PT should be considered. A 1A fuse must be installed on the voltage input . 4.6.2 电流输入 Current Input
电流输入应使用外部 CT;
如果使用的 CT 上连有其它仪表,接线应采用串接方式;
建议使用接线排,不要直接接 CT,以便拆装;
去除产品的电流输入连线之前,一定要先断开 CT 一次回路或短接二次回路;
Current input should use external CT. If there are other meters on the CT, the wiring used in series. It is recommended to use wiring board, do not connected with CT directly, in order to disassembly. Before removing product ‘s current Input connection, be sure to disconnect the CT primary circuit or short the secondary circuit. 4.6.3 附加功能接线 Adding function connection模拟量输出与开关量输入的 COM 表示各自公共端,并不是实际接地;
该仪表提供异步半双工 RS485 通讯接口,采用 MODBUS-RTU 协议,各种数据信息均可在通 上传送。理论上在一条线路
上可以同时连 接多达 128 个仪表,每个仪表均可设定其通讯地址(Addr)、通讯速率(baud )也可通过设置选择。
通讯连接建议使用两芯屏蔽线,每芯截面不小于 0.5mm2,分别接 A、B, 屏 蔽 层 接 大 地 , 布线时应使通讯线远
离强电电缆或其他强电场环境。
COM of analog output and switching Input represent their own common, the common port is not earthing actually. This meter provides asynchronism harf duplex RS485 Communication interface, adopting MODBUS-RTU protocol, various data
information may be transmitted on the Communication line. Theoretically, on the same line, meters up to 128 may be connected at the
same time, each meter can set up its Communication address (Addr.), Communication rate (buad) may be selected. Two-core shield cable is recommended for communication connection. its wire diameter is not less than 0.5mm2,connecting ,AlBl shielded layer single point to connect the earth or dangling, when wiring, the Communication line shall be far away from strong Current cable and other strong electric field environment.关于通讯部分的接线实例如下图所示:
Four connection modes in communication section are shown as following:
7
建议最末端仪表的 A、B 之间加匹配电阻,阻值范围为 120Ω~10kΩ。
Recommendation of adding matched resistance between A,B of the last meter, the rated resistance range is 120Ω~10kΩ
5. 使用指南 Operating instruction
5.1 按键 Press - key
SET 键--功能切换或返回上一级菜单;(正常 显示、只读菜单与编程菜单之间切换)
左移键一子菜单左移或减小数据;(功率表、电能表等正常状态下,按左右键,查看各项电量)
右移键一子菜单右移或增大数据;(普通电流、电压表等正常状态下,按住此键,查看报警信息)
回车键—进入下一级菜单或确认;(正常状态, 按此键,进入 DI/DO 指示与控制页面)
SET key -- Function switching or Return to previous menu; normal display, switching between read only menu and programming menu. Left shift key -- Same level menu shifting left or reducing data. Right shift key -- Same level menu shifting right or increasing data;in normal condition, pressing this key, display alarm information. ENTER key -- Enter next level menu or confirm; in normal condition, pressing this key, Enter DI/DO Indication and control page. 5.2 菜单符号及意义 Menu symbol and its meaning
5.2.1 AMC72 系列仪表 AMC72 Series meters类别 符号 含义 范围
8
Category Symbol Meaning Range主菜单
Main menu. rEAd
只读菜单
Read-only menu简写:rd
Shortening: rd
Prog
编程菜单
Programming menu简写:Pg
Shortening: Pg
变比(倍率)
Transformation ratio
(multiplying power)
Pt(Ct)
电压(电流)变比
Voltage(current) transformation ratio
0001~9999
直流表显示设置
DC meter display
setting
H
满度显示
Full display
-9999~9999
L
零点显示
Zero display
-9999~9999
A.P(U.P)
显示值小数点
Display value decimal point
0~3
Z
零点屏蔽值
Zero mask value
-9999~9999
TYP
单位显示
display
A~Z 或者无
A~Z or none通讯
Communication Add 通讯地址 Communication Address 1~247
C
通讯波特率(kbps)Communication
baud rate (kbps)
1.2、2.4、4.8、9.6 等
初始画面
Initial menu Pg
上电显示的初始画面
Power on Initial menu Page 的简写;显示 U、A、P 等 Page
shortening ;display U 、A 、P etc.液晶背光
LCD backlight
LCD
背光延时时间(s )
Backlight delay time (s)
1 -250,0 为常亮 LED 仪表此项无效
1 -250, 0 is lighting LED This is invalid
报警设置
Alarm setting
U.H
电压高报警设置
Voltage too high alarm setting
0-150% ( 150%:关闭)
0-150% (150%: closed)
U.L
电压低报警设置
Voltage too low alarm setting
0-100% (0%:关闭)
0-100% (0%: closed)
A.H
电流高报警设置
Current too high alarm setting
0-150% (0%:关闭)
0-150% (0%: closed)
A.L
电流低报警设置
Current too low alarm setting
0-100% (0%:关闭)
0-100% (0%: closed)
H.L
功率因数低报警设置
Power factor too low Alarm setting
0.0-1.0 (0.00 关闭)
0.0-1.0 (0.00 closed)
F.H
频率高报警设置
frequency too high alarm setting
9.99~99.99(99.99 关闭)
9.99~99.99(99.99 closed)
F.L
频率低报警设置
frequency too low alarm setting
9.99~99.99(99.99 关闭)
9.99~99.99(99.99 closed)
AL.b
回滞量设置
Hysteresis seting
0-99.9%
AL.t
报警延时时间(s )
Alarm delay time (s)
1.0-20.0(分辨率 0.1s)
1.0-20.0(resolution 0.1s)
继电器 do1.t 继电器 1 闭合持续时间(s) 0.0-20.0 (分辨率 0.1s)
9
(DO 输出)
Relay
(DO output)
Relay 1 closing duration (s) 0.0-20.0 (resolution 0.1s)
do2.t
继电器 2 闭合持续时间(s )
Relay 2 closing duration (s)
0 表示电器工作在保持方式
0 indicate relay is in keeping mode do2.U
继电器 2 的用法
Usage of relay 2
io:作开关量(K);
io: used for switching (K);
AL:作报替输出(J)
AL: used for alarm output (J)
模拟量
Analog
o.L
模拟量下限设置
Analog lower limit setting
0-100%
(频率表、直流表除外)
(Except frequency、DC meter) o.H
模拟量上限设置
Analog upper limit setting
0-120%
(频率表、直流表除外)
(Except frequency、DC meter) o.U
模拟量输出选择
Analog output selection U、A、P 等
U、A、P etc.电能
Energy
CLr.E
电能清除
Energy is removed
EP.EqE
电能显示
Display of energy
量程
Measuring
range SP.U
SP.A
额定输入电压
Rated input voltage额定输入电流
Rated input current
电压:AC 100、220、380V 等;
Voltage: AC100, 220, 380V etc.电流:AC1A, 5A 等
Current: AC1A, 5A etc.密码
Password
PS
编程保护密码
Protective password programming
0000-9999
保存
Save SAVE
询问是否保存
Save?
保存按“回车”
save press “Enter”
注:1.普通 72 单相电流、电压表中的报警菜单与上稍有不同,其不区分电流、电压信号,只表示数值的高低,为:AL.H
(高报警)、AL.L(低报警)、AL.t(报警延时)。
Note:The alarm menu of the single-phase current,voltage table of the ordinary 72 meter is slightly different from the upper one ,it
does not distinguish between current,voltage signal,said only the value of high and low,high alarm,low alarm,alarm delay. 2.各参数设置流程见 5.3.4 Prog 菜单;
The parameter setting process is shown in the 5.3.4 Prog menu. 3.百分数均相对于额定测量信号,频率、功率因数除外,报警值为一次值;
The percentage is relative to the rated measurement signal. The alarm value is a primary value for AMCxx-F. 5.2.2 AMC48 (96)系列仪表 AMC48 (96) Series meters类别
Category
符号
Symbol
含义
Meaning
范围
Range主菜单
Main menu. rEAd
只读菜单
Read-only menu Prog
编程菜单
Programming menu
10
变比(倍率)
Transformation ratio
(multiplying power)
Pt(Ct)
电压(电流)变比
Voltage(current) transformation
ratio
0001~9999
通讯
Communication Add 通讯地址 Communication Address 1~247
Baud
通讯波特率(bps)Communication
baud rate (kbps)
1.2、2.4、4.8、9.6 等
液晶背光
LCD backlight
LCD
背光延时时间(s )
Backlight delay time (s)
1 -250,0 为常亮 LED 仪表此项无效
1 -250, 0 is lighting LED This is invalid
报警设置
Alarm setting
AL、Hi
髙报警设置
HIGH alarm setting
0-150% ( 150%:关闭)
0-150% (150%: closed)
AL、Lo低报警设置
LOW alarm setting
0-100% (0%:关闭)
0-100% (0%: closed)
AL、-t
报替延时时间(s )
Alarm delay time (s)
01.0-20.0 (分辨率 0.1s)
01.0-20.0 (resolution 0.1s)
继电器
(DO 输出)
Relay
(DO output)
do1.t
继电器 1 闭合持续时间(S)
Relay 1 closing duration (s)
0.0-20.0 (分辨率 0.1s)
0.0-20.0 (resolution 0.1s)
do2.t
继电器 2 闭合持续时间(s )
Relay 2 closing duration (s)
0 表示电器工作在保持方式
0 indicate relay is in keeping mode do2.U
继电器 2 的用法
Usage of relay 2
io:作开关量(K);
io: used for switching (K);
AL:作报替输出(J)
AL: used for alarm output (J)
模拟量
Analog
Ao.Lo模拟量下限设置
Analog lower limit setting
0-100%(频率表除外)
(Except frequency meter)
Ao.Hi
模拟量上限设置
Analog upper limit setting
0-120%(频率表除外)
(Except frequency meter)
量程
Measuring
range SP.U
SP.A
额定输入电压
Rated input voltage额定输入电流
Rated input current
电压:AC 100、220、380V 等;
Voltage: AC100, 220, 380V etc.;
电流:AC1A, 5A 等
Current: AC1A, 5A etc.密码
Password
PASS
编程保护密码
Protective password programming
0000-9999
保存
Save SAvE
询问是否保存
Save?
保存按“回车”
save press “enter”注:1.各参数设置流程见 5.3.4 Prog 菜单;
Note: The parameter setting process is shown in the 5.3.4 Prog menu. 2.百分数均相对于额定输入信号,频率除外,报警值为一次值;
The percentage is relative to the rated measurement signal .The alarm value is a primary value for AMCxx-F. 5.3 编程流程(此流程以 LED 显示为例,LCD 显示与此类似) Program flow (This flow take LED display as example, LCD display is
similar)
5.3.1 AMC72 系列仪表在正常显示画面时,按 SET 键,如下:
AMC72 Series mete is showing menu, press SET key, as follows.
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SET SET
SET
测量画面 rEAd Prog
5.3.2 AMC48 (96)系列仪表在测量画面时,按 SET 键如下:
AMC48 (96) Series mete is measuring menu, press SET key, as follows. SET SET
SET
测量画面 rEAd Prog
说明:
rEAd--只读菜单,在此页面,按回车键进入;
Prog--编程菜单,在此页面,按回车键进入;
Description: rEAd--Menu read only, at this page, press Enter key to enter. Prog--Programming menu, at this page,press Enter key to enter. 5.3.3 rEAd 菜单(只读)
AMC72 系列单相电流表(AMC72-AI/*):
AMC72Series single phase current meter (AMC72-AI/*).按回车键 Press the ENTER
按左移、右移键循环显示 按右移键向下
按左移键向上 Press left or right shift key for cyclic display Press right shift key downward
Press left shift key upward
说明:
电压表菜单与此类似,只有两处不同:1、Pt 替代 Ct; 2、SP.U 替代 SP.A。
Description: Voltage meter menu is similar, only 2 place is different: 1.Pt replace Ct, 2.SP.U replace SP.A. AMC72 系列单相直流电流表(AMC72-DI/*):
AMC72Series single phase dc current meter (AMC72-DI/*).
Measuring menu
Measuring menu
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按回车键 Press the ENTER
按右移键向下
按左移键向上 Press right shift key downward
按左移、右移键循环显示
Press left or right shift key for cyclic display
按左移键向上
Press left shift key upward
Press left shift key upward 按左移、右移键循环显示
Press left or right shift key for cyclic display
按右移键向下
Press right shift key downward
说明:
直流电压表菜单与此类似,只有一处不同:A.P 替代 U.P;
当零点屏蔽值设定为正时,表示显示值在设定范围内都显示为 0,即:|显示值|≤设定值,显示都为 0(图 5);当设定值
为负时,表示显示值≤设定值时,显示都为设定值(图 6)。
Description: DC voltage meter menu is similar, only one place is different: A.P replace U.P. When the zero mask value is positive,it indicates that the display value is displayed as 0 within the set range,namely:|display
value|≤set value,display 0(picture 5);when the set value is negative,it indicates that the display value is set
value(picture 6) when the display value ≤set value.
图 5 图 6
Picture 5 Picture 6
AMC48 (96)系列单相电流表(AMC□□-AI/*)
AMC48 (96) Series single phase current meter (AMC□□-AI/*):
the display value new display curve original display curve new display curve original display curve
low value mask value
low value mask value
low value mask value
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按回车键 Press the ENTER
按左移、右移键循环显示 按右移键向下
按左移键向上 Press left or right shift key for cyclic display Press right shift key downward
Press left shift key upward
说明:
左右键选择需要查看的参数菜单,按回车键 进入査看具体设置值,按 SET 键返回;
电压表菜单与此类似,只有两处不同:1.Pt 替代 Ct; 2.SP.U 替代 SP.A;
48 型:无 AL.Hi、AL.Lo, AL.-t、do1.t、 do2.t 及 do2.U 菜单。
Description: Left/right key select parameter menu to be look over, press Enter key to enter look over concrete setting, for returning to press SET
key. Voltage meter menu is similar, only 2 place is different: 1.Pt replace Ct; 2.SP.U replace SP.A. 48 Type: no AL.Hi, AL.Lo, AL-t,do1.t,do2.t and do2.U menu. AMC72 系列单相电能表(AMC72-E/*)
AMC72Series single phase electricity meter(AMC72-E/*):按回车键 Press the ENTER
按左移、右移键循环显示 按右移键向下
按左移键向上 Press left or right shift key for cyclic display Press right shift key downward
Press left shift key upward
按左移、右移键循环显示 按右移键向下
按左移键向上 Press left or right shift key for cyclic display Press right shift key downward
Press left shift key upward
按左移、右移键循环显示 按右移键向下
按左移键向上 Press left or right shift key for cyclic display Press right shift key downward
Press left shift key upward
5.3.4 Prog 菜单(可写)
5.3.4 Prog menu (may be written)
AMC72 系列单相电流表(AMC72-AI*)
AMC72 Series single phase current meter (AMC72-AI/*):
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0000闪烁,输入保护密码,默认密码0000,万能密码0008
0000 flicking,input protective password default 0000,omnipotence password 0008
按回车键 Press the ENTER
按回车键 Press the ENTER
按左移、右移键循环显示 按右移键向下
按左移键向上 Press left or right shift key for cyclic display Press right shift key downward
Press left shift key upward
说明:
Prog 菜单可按左移、右移键切换,按回车 键则第二行数据闪烁,表示可修改;修改后按 SET 键放弃修改,按回车键确
认修改。确认后再 按 SET 键出现闪烁的 SAVE,询问是否保存,保存按回车确认,不保存按 SET 键退出。
电压表菜单与此类似,只有一处不同:Pt 替代 Ct ,
Explanation: Prog menu can press Left shift key, Right shift key for switching, press ENTER key, then the second line digital flicker, indicate
revising is allowable; after revising, press ENTER to Confirm, press SET key, the flicker SAVE to appear, ask save?,if need, press ENTER to Confirm, or press SET key to exit without saving. Voltage meter menu is similar, only one difference:Pt replace Ct. AMC72 系列单相直流电流表(AMC72-DI/*):
AMC72 Series single phase dc current meter (AMC72-DI/*):按右移键向下
按左移键向上 Press right shift key downward
按左移、右移键循环显示
Press left or right shift key for cyclic display
按左移键向上
0000闪烁,输入保护密码,默认密码0000,万能密码0008
0000 flicking,input protective password default 0000,omnipotence password 0008
按回车键 Press the ENTER
Press left shift key upword
Press left shift key upword 按左移、右移键循环显示
Press left or right shift key for cyclic display
按右移键向下
Press right shift key downward
说明:
Prog 菜单可按左移、右移键切换,按回车键则第二行数据闪烁,表示可修改;修改后按 SET 键放弃修改,按回车键确认修
改。确认后再按 SET 键出现闪烁的 SAVE,询问是否保存,保存按回车确认,不保存按 SET 键退出。
直流电压表菜单与此类似,只有一处不同:A.P 替代 U.P;
Explanation: Prog menu can press Left shift key, Right shift key for switching, press ENTER key, then the second line digital flicker, indicate
revising is allowable; after revising, press ENTER to Confirm, press SET key, the flicker SAVE to appear, ask save?,if need, press ENTER to Confirm, or press SET key to exit without saving.
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DC voltage meter menu is similar, only one difference:A.P replace U.P. AMC48(96)系列单相电流表(AMC□□-AI/*)
AMC48 (96)Series single phase current meter(AMC□□-AI/*):按回车键 Press the ENTER
按回车键 Press the ENTER
0000闪烁,输入保护密码,默认密码0000,万能密码0008
0000 flicking,input protective password default 0000,omnipotence password 0008
按左移、右移键循环显示 按右移键向下
按左移键向上 Press left or right shift key for cyclic display Press right shift key downward
Press left shift key upward
说明:
输入正确密码,按回车进入 Prog 菜单,按 左、右键选择需要修改的参数,按回车键进入, 数据闪烁,可修改;修改后按
回车确认保存,按 SET 键放弃保存。按 SET 键出现闪烁的 SAVE,询 问 是 否 保 存,如需保存按回车确认,否则按 SET 键退出不保存。
电压表菜单与此类似,只有一处不同:Pt 替代 Ct;
48 型:无 AL.Hi、AL.Lo、AL.-t、do1.t、 do2.t 及 do2.U 菜单。
Description: Prog menu can press Left shift key, Right shift key for switching, press ENTER key, then digital flicker, indicate revising is allowable; After revising, press SET key to quit revising, press ENTER to Confirm revising. After conforming. press SET key again, the flicker SAVE to appear, ask save?, if need, press ENTER to Confirm, or press SET key to exit without saving. Voltage meter menu is similar, only one difference: Pt replace Ct; 48 Type: no AL.Hi, AL.Lo, AL.-t, do1 .t, do2.t and do2.U menu. AMC72 系列单相电能表(AMC72-E/* )
AMC72 Series single phase electricity meter(AMC72-E/* )
按回车键 Press the ENTER
按左移、右移键循环显示 按右移键向下
按左移键向上 Press left or right shift key for cyclic display Press right shift key downward
Press left shift key upward
0000闪烁,输入保护密码,默认密码0000,万能密码0008
0000 flicking,input protective password default 0000,omnipotence password 0008
按回车键 Press the ENTER
按左移、右移键循环显示 按右移键向下
按左移键向上 Press left or right shift key for cyclic display Press right shift key downward
Press left shift key upward
按左移、右移键循环显示 按右移键向下
按左移键向上 Press left or right shift key for cyclic display Press right shift key downward
Press left shift key upward
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说明:
Prog 菜单可按左移、右移键切换,按回车键则第二行数据闪烁,表示可修改;修改后按 SET 键放弃修改,按回车键确认
修改。确认后再 按 SET 键出现闪烁的 SAVE,询问是否保存,保存按回车确认,不保存按 SET 键退出。
Description: Prog menu can press Left shift key, Right shift key for switching, press ENTER key, then the second line digital flicker, indicate
revising is allowable; After revising, press SET key to quit revising, press ENTER to Confirm revising. After conforming, press SET key
again, the flicker SAVE to appear, press ENTER to Confirm, exit without saving. 5.4 功能设置与使用 Function setting and using
5.4.1 倍率更改设置
例 1: AC10kV/100V 的电压表:进入 Prog 菜 单,修改 Pt 为 100;
计算方法:10000V÷100V= 100
例 2: AC500A/5A 的电流表:进入 Prog 菜 单,修改 Ct 为 100;
计算方法:500A÷5A = 100 电能表的 Pt、Ct 都可更改。
Multiplying power revise setting
Example 1: AC10kV/100V voltage meter: Enter Prog menu, revise Pt as 100. Computing Method: 10000V÷100V = 100 Example 2: AC500A/5A current meter: Enter Prog menu, revise Ct as 100. Computing Method: 500A÷5A = 100 electricity meter Pt, Ct can be revised. 5.4.2 通讯功能及参数设置
Modbus-RTU 协议:“9600,8,n,1”。
通讯参数见 5.2 菜单符号及意义,编程流程见 5.3.4,进入 Prog 菜单。
Communication function and parameter setting
Modbus-RTU Protocol: "9600, 8,n,1". Communication parameter see 5.2 menu symbol and meaning, programming flow
see 5.3.4,Enter Prog menu. 5.4.3 报警功能及参数设置
AMC72 系列仪表报警状态: Alarm function and parameter setting
AMC72 Series meter alarm status:测量值为 0 时不报警
No alarming for 0 measured
正常 value Normal
I 过高
I Too high
I 过低
I Too low
AMC96 系列仪表报警状态(正常测量时,按右移键,可查看报警信息)
AMC96 Series meter alarm status (In normal measuring, press right shift key, to look over alarm information)
测量值为 0 时不报警
No alarming for 0 measured
正常 value Normal
I 过高
I Too high
I 过低
I Too low正常测量时,有报警产生,则显示数据会闪烁。如果 Prog 菜单中的 do2.U 设置为 AL,则报警时会在继电器 DO2 上产生一
个输出(继电器常开接点闭合)。
报警状态可通讯读取,参量地址见 6.4 单相表通讯参量地址表
报警功能设置,参数见 5.2 菜单符号及意 义,设置流程见 5.3.4 Prog 菜单。
报警功能默认为关闭状态,除非客户要求。
In normal measurement,if alarming occur, the displaying data will be flickering. If Prog menu do2.U setting is AL, during alarming,
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relay do2 produce one output (relay NO node is closed). Alarm condition can communication read, parameter address see 6.4 Single phase meter communication parameter address meter. Alarm function setting, parameter see 5.2 menu symbol and meaning, setting flow see 5.3.4 Prog menu. Alarm function default as closed condition, unless customer request changing. 5.4.4 开关量功能及输出控制 Switching function and output control. 5.4.4.1 AMC72 系列仪表,正常测量时,按下 回车键,可查看开关量状态,如下:
5.4.4.1 AMC72series meters, in normal measuring, press down ENTER key, can look over switching condition, as follows.
0 表示断开;1 表示闭合
DI1 DI2 DO1 DO2 0 for opening,1 for closing
开关量输入 开关量输出
Switching input Switching output
如图开关量输入指示在 DI1、DI2,幵关量输出指示在 DO1、DO2.另外,液晶(LCD)显示方式仪表,在正常测 量状态下就有开关量输入/输出指示,无需按快 捷键查看。
在查看开关量状态页面,再次按下回车键, 将进入本地开关量输出(继电器)控制页面(与查看 页面相同,但开关量输出位闪烁
可修改),左右 键输入保护密码(出厂设置:0000,密码设定 见 5.4.8),回车确认进入:
数字闪烁表示可修改,按左键选择需修改项,按右键进行修改,按回车确认修改,按 SET 纖弃修改。
As figure show: Switching input is indicating DI1 DI2, Switching output is indicating DO1, DO2. In addition, Liquid Crystal Display (LCD) display meter, in normal measuring status have Switching input/output indication, look
over shortcut key is unnecessary. When look over Switching status page, press Enter key again, will enter local Switching output (relay) control page (the same as
look over the page, but Switching output bit flicker indicate revisable), press left/right key to input protective password (Shipping setting: 0000, password setting see 5.4.8),press ENTER to confirm enter. Digital flicker indicate its revisable, press left key to select revising item, press right key to do revising, press ENTER to confirm
revising; press SET key to quit revising. 5.4.4.2 AMC96 系列仪表,正常测量时, 按下回车键,可查看开关量输入状态,如下:AM C 9 6 Series meter, in normal measuring, press Enter key, can look over Switching input status, as follows:
0 表示断开;1 表示闭合
DI1 DI2 DI3 DI4
开关量输入
Switching input
如 图 开 关 量 输 入 指 示 DI1-DI4,数 码 管 (LED)显示方式仪表,其开关量输出指示在面板上,字符 DO1、DO2。
另外,液晶(LCD)显示方式仪表,在正常测量状态下就有开关量输入/输出指示,无需按快捷键查看。
在查看开关量输入状态页面,再次按下回车键,将进入本地开关量输出(继电器)控制页面, 左右键输入保护密码(出厂设
置:0000,密码 设定见 5.4.7),回车确认进入:
As figure show: Switching input indication DI1-DI4, light—emitting diode display meter, its Switching output is indicating on the
faceplate, character DO1,DO2. In addition, Liquid Crystal Display (LCD) display meter, in normal measuring status have Switching input/output indication, look
over shortcut key is unnecessary.
0 for opening,1 for closing
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When look over Switching input status page, press Enter key again, will enter local Switching output (relay) control page, press
left/right key to input protective password ( Shipping setting: 0000, password setting see 5.4.7), press ENTER to confirm enter.开关量输入状态 闪烁,输入密码 输出控制页面
回车Press Enter 回车Press Enter 回车Press Enter
Switching input status Flickering,input password Output control page开关量输出控制页面中,数字闪烁、表示可修改,左键选择需修改项,右键进行修改(0 表示 断幵,1 表示闭合),回车
确认修改,按 SET 键 放弃修改。
In Switching output control page,digital flicker indicate its revisable, press left key to select revising item, press right key to do
revising, (0 for opening, 1 for closing) press ENTER to confirm revising; press SET key to quit revising。
远程读取与控制见 6.5 通讯应用。
开关量输出为继电器常开触点;开关量输入 为光电隔离,干接点输入,简要原理如下:
Remote read and Control see 6.5 Communication application. Switching output adopt NO relay; switching input adopt photocoupler detection, the briefing principle is shown as following.
5.4.5 模拟量输出及设置 Analog output and setting
Ao.L(Ao.Lo): 模 拟 量 下 限 设 置 ; Ao.H(Ao.Hi):模拟量上限设置;Ao.U:功 率 表 及电能表中此菜单表示模拟量输
出选择,可对应 所测电网电压、电流、功率等;设置范围见 5.2 菜单符号及意义。
例:AC500/5A,对应输出一路 4-20mA (即,AC0A 对应 4mA; AC500A 对应应 20mA )
设定:A o . L ( A o . L o ) : 0 0 0 ( % ); Ao.H(Ao.Hi): 100 ( % );
说明:Ao.L(Ao.Lo)、Ao.H(Ao.Hi)的设定值 均为额定输入信号的百分数;
频率表变送以测量一次值为变送上下限(如 Ao.L(Ao.Lo):45.00; Ao.H(Ao.Hi):65.00);
Ao.L(Ao.Lo): Setting for analog lower limit; Ao.H(Ao.Hi): Setting for analog upper limit; Ao.U: In power meter and electricity meter, this menu show analog output selection, can correspond to voltage, current, power etc. of measured grid; Setting range see 5.2 menu sign
and meaning. Example: AC500/5A, correspond to output 1 -channel 4-20mA (i.e., ACOA correspond to 4mA; AC500A correspond to 20mA)
Set: Ao.L(Ao.L o):000 (%); Ao.H(Ao.Hi): 100 (%);
Description: Rating of Ao.L(Ao.Lo), Ao.H (Ao.Hi) is percentage of rated input signal;
Frequency meter transmitting is the primary side data (as: Ao.L(Ao.Lo):45.00,Ao.H(Ao.Hi):65.00). 5.4.6 脉冲输出功能 Pulse output function单相电能表为一路脉冲输出功能,一路有功脉冲;输出接口为无源光耦接点,脉冲常数为:15000imp/kWh。
Single-phase electricity meter usually have 1-channel Pulse output function, one is the active Pulse, another is the reactive Pulse;
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output interface is the passive photo-coupling contact, Pulse constant is: 15000imp/kWh. 5.4.7 液晶背光控制 Liquid crystal backlight control
进入 Prog 菜单,左右键选择 LCd 页面,按回车键进入修改状态;左右键进行液晶背光时间修 改 000〜250s,此项对 LED
显示仪表无效。
000:表示液晶背光常亮;250:表示液晶背光在按键 250 秒无操作后,转入微亮状态,以延长背光使用寿命。
Enter Prog menu, left/right key select LCd web page, press ENTER to enter revising condition; press left/right key to revise Liquid
crystal backlight time 000~250s, to LED display meter, this item is invalid. 000: Indicate Liquid crystal backlight lights;250: Indicate Liquid crystal backlight after pressing for 250 seconds without operation, switch to glimmer light condition, to prolong backlight service life. 5.4.8 编程密码设置 Program password setting
进入 Prog 菜单,左键选择 PASS 页面,按回 车键进入修改状态;左右键进行密码修改,密码 范围 0000_9999,按回车确
认修改,按 SET 键放 弃修改。修改后,编程保护密码及开关量输出控 制保护密码均为新密码。默认密码:0000;万能密码:0008。
Enter Prog menu, left key select PASS web page, press ENTER to enter revising condition; press left/right key to carry out
password revising, password range 0000-9999, press ENTER to confirm revising. After revising, programming protective password and
switching output Control protective password are new password. Default password: 0000; omnipotence password; 0008
5.5 测量数据查看 Look over measuring data对于单相电流表、电压表,其测量值显示在其初始画面;而 72 外形单相电能表,因测量数据较多,不能同时显示多种数据,
在正常测量状态下,可以按左、右键进行查看所测各电量参数
For single-phase current meter, voltage meter, its measured value display on its initial menu; for72 single-phase electricity meter, because of excessive measuring data, display every value at the time is impossible, in normal measuring status, can press left key, right
key to look over each measured parameter respectively。
5.5.1 AMC72 系列 LED 显示功率表、电能表测量数据查看
5.5.1 Look over measuring data of AMC72 Series LED display power meter, electricity meter按左移、右移键循环显示 按右移键向下
按左移键向上 Press left or right shift key for cyclic display Press right shift key downward
Press left shift key upward
LED 电能表测量数据查看流程
Measuring data look over flow of LCD electricity meter说明:
U:电压值(一次侧),单位:伏特(V) A: 电流值(一次侧),单位:安培(A)
F:频率值,单位:赫兹(Hz) P:有功功率(一次侧),单位:千瓦(kW)
Q:无功功率(一次侧),单位:千乏(kvar) H:功率因数
Ep:有功电能(一次测),单位:千瓦时(kWh) Eq:无功电能,单位:千乏时(kvarh)
AL:报警信息
当电能显示为一次侧时,数据超过 999999999 时,显示自动循环显示,高位显示字符 H,低位显示字符 L。
Description: U: voltage value (primary side), Unit: V
A: current value(primary side), Unit: A
F: Frequency value, Unit: Hz P: Active power (primary side), Unit: kW
Q: Reactive power (primary side), Unit: kvar
20
H: Power factor Ep: Active electric energy (EP.EqE =1,primary side), Unit: kWh
Eq: Reactive electric energy , Unit: kvarh
AL: Alarm information When the power is shown as primary and the electric energy data is over 999999999 ,data value is displaying automatically cycle, high-order display character H, low order display character L. 5.5.2 AMC72 系列 LCD 显示功率表、电能表测量数据查看
5.5.2 Measuring data look over flow of AMC72Series LCD display power meter ,electricity meter按右移键向下
Press right shift key downward
按左移、右移键循环显示
按左移键向上 Press left or right shift key for cycilc display
Press left shift key upward
说明:
液晶表测量数据查看流程基本与数码管显示仪表 一致,因显示方式的不同,两者略有不同。 功率表电量查看流程与电能
表基本一致,但无电 能数据显示。
当电能数据超过 999999999 时,显示自动循环显示,高位显示字符 H,低位显示字符 L.(如: 电能数据 2345456.7kwh, 显
示 1: H 2345; 显示 2: L 456.7 )
Description: Measuring data look over flow of LCD meter is basic same as LED meter, but has slight difference. Measuring data look over flow of power meter is basic same as electricity meter, but have no electric energy data display. When the electric energy data is over 999999999 ,data value is displaying automatically cycle, high-order display character H, low order display character L.(as: 2345456.7, dispay1: H 2345; dispay2: L 456.7 )
6. 通讯指南 Communication guide
6.1 概述 General
AMC 系列仪表采用 Modbus-RTU 协议:“ 9600,8,n,1”,其中 9600 为默认波特率, 可通过编程修改为 2400、4800、19200
等,设 置方法见本说明书 5.4.3 通讯参数设置;8 表示有 8 个数据位;n 表示无奇偶校验位;1 表示有 1 个 停止位。
错误检测:CRC16(循环冗余校验)
AMC Series meter adopt Modbus-RTU protocol: "9600, 8,n, 1", in it 9600 is default baud rate, based on request, it can be revised
as 2400,4800 , 19200 etc., for the setting method, see this instruction 5.4.3 communication parameter setting; 8 indicate have 8 data bit; n indicate no parity bit; 1 indicate have one stop bit. Error detecting: CRC16 (cyclic redundancy check)
6.2 协议 Protocol
当数据帧到达终端设备时,它通过一个简单的“端口”进入被寻址到的设备,该设备去掉数据帧的“信封”(数据头),读取
数据,如果没有错误,就执行数据所请求的任务,然后,它将自己生成的数据加入到取得的“信封”中,把数据帧返回给发送者。
返回的响应数据中包含了以下内容:终端从机地址(Address)、被执行了 的命令( Function )、执行命令生成的被请求数 据(Data )
和一个 CRC 校验码(Check)。发生任何错误都不会有成功的响应,或者返回一个错误指示帧。
When Data frame reach terminal device, it enter addressed device by a simple "port", this device remove Data frame
"envelope"(data head), read data, if there is no error, executing task requested by data, then, add the new produced data in the obtained
"envelope", return the data frame to the transmitter. Returned responding data include following content: slave terminal address
(Address), executed command (Function), requested data produced by executing command (Data) and one CRC check code (Check). If
21
any error occur, no successful responding or returning one error indication frame. 6.2.1 数据帧格式 Data frame format
地址
Address功能
Function数据
Data校验
Check
8-Bits 8-Bits N╳8-Bit 16-Bits 6.2.2 地址(Address )域 Address domain地址域在帧首,由一个字节(8-Bits, 8 位二进制码)组成,十进制为 0~255,在我们的系统中只使用 1〜247,其它地址保
留。这些位 (Adress)标明了用户指定的终端设备的地址,该设备将接收来自与之相连的主机数据。同一总线上每个终端设备的
地址必须是唯一的,只有被寻址到的终端才会响应包含了该地址的查询。当终端发送回一个响应,响应中的从机地址数据便告
诉了主机哪台终端正与之进行通信。
Address domain: address domain is located at beginning of frame, composed of one byte (8 bit binary system domain), decimal system is 0-255, in our system, just 1-247 is used, other address is Reserved, these bits indicate terminal device address specified by
users, this device will receive the connecting host computer data. Every terminal device has its only one address, only the addressing
terminal is responding enquiry including this address. When terminal is Transmitting one responding, the responding slave address data
tell host computer that which terminal is communicating with it. 6.2.3 功能(Function )域 Function domain功能域代码告诉了被寻址到的终端执行何种功能。下表列出了该系列仪表用到的功能码以及他们的意义和功能
Function domain: function domain tell the addressed teminal to excute what function, Below table list: function domain used in
this Series meters, and their meaning and function。
代码(十六进制)
Code(hex)
意义
Meaning
行
Operation
03H
读取保持寄器
Read holding register在一个或多个保持寄存器中取得当前的二进制值
Obtain current binary system value of one or multiple holding
register 10H
预置多寄存器
Preset multiple register把具体的二进制值装入一串连续的保持寄存器
Set actual binary system value into a series of continuous holding
register 6.2.4 数据(Data)域 Data ( Data ) fields数据域包含了终端执行特定功能所需的数据 或终端响应查询时采集到的数据。这些数据可能 是数值、参量祖或雜置值。
例如:功能域告诉终端读取一个寄存器,数 据域则需要指明从哪个寄存器开始及读取多少个 数据,内嵌的地址和数据依照类
型和从机之间的 不同而内容有所不同。
Data field: data field is including the data needed by terminal for executing specific function, or the collected data when terminal is
responding enquiry. Content of these data may be value, reference address or setting value. For example: The function domain tell
terminal to Read one register, the data field need to specify the starting register and Read how many data, the built-in address and data have different content depending on type and slave computer. 6.2.5 错误校验(Check)域 Error check ( Check) domain该域采用 CRC16 循环冗余校验,允许主机 和终端检查传输过程中的错误。有时由于电噪 声和其它干扰,一组数据从一个
设备传输到另 一个设备时,在线路上可能会发生一些改变, 错误校验能够保证主机或从机不去响应那些发 生改变的数据,
这就提高了系统的安全性、可靠性和效率
This domain adopt CRC16 cyclic redundancy check, for host computer and terminal, the error in checking and transmitting is allowable. Due to electric noise and other interfere, when one group of data is transmitting from one device to another device, on the
transmitting line, some change may be produced. The error check can enable the host computer or slave computer not responding those
changed data, so, safety, reliability and efficiency of system are upgraded. 6.3 错误校验码(CRC)的生成方法 Method to create error check code (CRC)
22
错误校验(CRC )域占用两个字节,包含了一个 16 位的二进制值。CRC 值由传输设备计算出来,然后附加到数据帧上,接
收设备在接受 数据时重新计算 CRC 值,然后与接收到的 CRC 域中的值进行比较,如果这两个值不相等,就发生了错误。
Error check (CRC) domain occupy 2 byte, including one 16 bit binary system value. CRC value is calculated by transmission device, then attached to the data frame, the receiving device, while receiving, it calculates the CRC value again, then comparing it with the
receiving CRC domain value, if these two values is not equal, it shows a error occurs. CRC 运算时,首先将一个 16 位的寄存器预 置为全 1,然后连续把数据帧中的每个字节中的 8 位与该寄存器的当前值进行
运算,仅仅每个字节 的 8 个数据位参与生成 CRC,起始位和停止位以 及可能使用的奇偶位都不影响 CRC。在生成 CRC 时,
每个字节的 8 位与寄存器中的内容进行异或,然后将结果向低位移位,高位则用“0” 补充,最低位(LSB )移出并检测,如果是 1,
该寄存器就与一个预设的固定值(0A001H )进 行一次异或运算,如果最低位为 0,不作任何处理。
When operating, firstly, preset one 16-bit register as All-1, then continuously operating each byte 8 bit of Data frame and current value of this register, only every 8 data bit of each byte to participate in forming CRC the start bit and stop bit and usable parity bit have no affect on the CRC. When forming CRC, every 8 data bit of each byte and content of register carry out exclusive or operation, then
shift the result to the low bit the high bit is filled with O1 shift out the least significant bit (LSB)is shifted out and tested, if it is 1,this
register and one preset fixed value (0A001H) carry out one exclusive or operation, if the least significant bit is 0,notreating is needed. CRC 生成流程:
1、预置一个 16 位寄存器为 OFFFFH (全 1 ), 称之为 CRC 寄存器。
2、把数据帧中的第一个字节的 8 位与 CRC 寄存器中的低字节进行异或运算,结果存回 CRC 寄存器。
3、将 CRC 寄存器向右移一位,最高位填◦, 最低位移出并检测。
4、如果最低位移出为 0:重复第 3 步(下一次 移位);如果最低位移出为 1:将 CRC 寄存器与 一个预设固定值(0A001H )进行
异或运算。
5、重复第 3 步和第 4 步直到 8 次移位。这样就 处理完了一个完整的 8 位。
6、重复第 2 步到第 5 步来处理下一个 8 位,直到所有的字节处理结束。
7、最终 CRC 寄存器的值就是 CRC 的值。
此外还有一种利用查表计算 CRC 的方法,它的主要特点是计算速度快,但是表格需要较大的存储空间,该方法此处不再赘
述,请查阅相关资料。
Flow for forming one CRC: 1. Preset one 16 bit register as OFFFFH (All-1), called as CRC register. 2. 8 bit of data frame first byte and low byte of CRC register carry out exclusive or operation, then save its result back to CRC
register. 3. Right shift CRC register for one bit, the most significant bit is filled with O1 the least significant bit is shifted out and tested. 4. If the least significant bit is 0, Repeat the third step (next shift); If the least significant bit is 1,CRC register and preset fixed
value specified (0A001H) carry out exclusive or operation. 5. Repeat the third step and the fourth step until shift for 8 times, the complete 8 bit is done. 6. Repeat the second step to the fifth step to treat next 8 bit until all the byte is treated. 7. The CRC register final value is CRC value. 8. Besides, there is another CRC calculation method by preset table, its main feature is fast calculating speed, but large saving
space is needed, please refer to related data. 6.4 单相表通讯参量地址表(Word ):Single-phase meter communication parameter address table (Word).地址
Addr内容
Content
简要说明
Briefing Description读写属性:R-读;W-写
除地址 0012H 为部分可写 外,均
为只读;
Belong to R/W: R-read; W-write Address 0012H may be written
partly, the rest is read only
0000H U 有效值
U virtual value交流电压(单位:V)
AC Voltage (Unit: V)
0-9999
23
0001H U 指数位
U exponent bit
0002H I 有效值
I virtual value交流电流(单位:A)
AC Current (Unit: A)
0-9999
直流电流(单位:A)
DC Current (Unit: A)
-9999-9999
0003H I 指数位
I exponent bit
0004H F 有效值
F virtual value频率(单位:Hz)
Frequency (Unit: Hz)
0005H F 指数位
F exponent bit
0006H H 有效值
H virtual value功率因数
Power factor
-1~1
0007H H 指数位
H exponent bit
0008H P 有效值
P virtuaI value有功功率(单位:W)
Active power (Unit: W)
-9999~9999
0009H P 指数位
P exponent bit
000aH Q 有效值
Q virtual value无功功率(单位:var)
Reactive power (Unit: var)
-9999〜9999
000bH Q 指数位
Q exponent bit
000cH Ep 高位
Ep High bit
有功电能(单位:Wh)
Active electric energy (Unit: Wh)
0~4199999999
除功率因数、有功功率、无 功功
率的有效值外,其它数 据均为无
符号数
Except virtual value of Power factor, active power, reactive power, other data are unsigned number
000dH Ep 低位
Ep Low bit
000eH Eq 高位
Eq High bit
无功电能(单位:varh)
Reactive electric energy (Unit: varh)
0~4199999999
000fH Eq 低位
Eq Low bit
0010H Pt 电压变比
Voltage transformation ratio
0011H Ct 电流变比
Current transformation ratio
24
0012H 报瞀及 I/O Alarm
and I/O
详细说明见下方
Detail Description see below
0013H 此后为保留字
Reserved character hereafter说明:
电压、电流、功率等数据数值计算方法:(例 见:6.5.1 徽据)读数=有效值╳10E(指数位-3)
Description: Voltage, current, power etc. calculating method: (example see: 6.5.1 reading data) Reading = virtual value╳10E(exponent bit-3)
0012H:报警及开关量输入出状态字:
0012H:Alarm Switching input / output status Character: 15 10 9 8 7 6 5 4 3 2 1 0 — AL.L AL .H DI1 DI2 — — DO1 D02
(R)高、低报警指示
(R) H、L alarm indication
(R) 1 闭合,0 断开
(R) 1 closing, 0 opening
(R/W)1 闭合,0 断开
(R/W) 1 closing, 0 opening
72 功率表、电能表报警状态字:
72 power meter, electricity meter alarm status character:
15 …13 12 11 10 9 8 I … 0 — H.L A.-H A.-L U.-H U.-L
开关量输入/输出状态
Switching input/output status功率因数低报警
Low power factor alarming
电流高、低报瞀
High, Low. alarming
for current
电压高、低报警
High, Low. alarming for voltage与上表同 Ditto说明:①表示保留字或保留位。
②报警标志位:1 为有报警,0 为无报警。
Description:①-showing Reserved character or Reserved bit. ②Alarming mark bit: 1 for alarming, 0 for no alarming. 6.5 通讯应用 Communication application本节所举实例尽可能采用下表格式(数据 为 16 进制)
Actual example, the whole way adopt format of below table (data as Hex). Addr Fun Data start Data # of CRC16
reg Hi reg Lo reg Hi reg Lo Lo Hi
01H 03H 00H 00H 00H 06H C5H C8H
地址
Address功能码
Function code数据起始地址
Data start address数据读取个数
Data read number循环冗余校验码
Cyclic redundancy check code 6.5.1 读数据 Read data例 1:读单相电流数据
Examplel: Read single-phase current data
25
说明:
01:从机地址
03: 功 能 码
04: 十 六 进 制 , 十 进 制 为 4, 表 示 后 面 有 4 个字节的数据
5a 50:循环冗余校验码
数据处理方法见:6.4 通讯参量地址表
处理如下:03b2(16 进制)= 9 4 6 ( 1 0 进制) 00 00(16 进制)= 0(10 进制)
计算:946╳10°-
3 = 0.946;
单位=安培(A)
Description: 01: Slave address 03: Function code 04: Hex, decimal system is 4, show follow by 4 byte data 5a 50; Cyclic redundancy check code Data processing method see: 6.4 communication parameter address table Data processing:03b2 (Hex) = 946 ( decimal system) 00 00( Hex) = 0 (decimal system)
Calculation: 946x 10
0-3=0.946;
Unit: A
则仪表显示 Meter display
1 0.946
读电压表数据与读电流表类似,但起始地址 为 00H,查询帧:01 03 00 00 00 02 c4 Ob
读其它信息的查询帧与此格式相同,各信息地址见: 6.4 单相表通讯参量地址表。
Read voltage meter data is similar with that of read current meter, but starting address is 00H, inquiry frames: 01 03 00 00 00 02 c4
0b. Read inquiry frames of other information is same as this format, each information address see: 6.4 Single-phase meter communication parameter address table.查询数据帧
Inquiry Data frame 01 03 00 0c 00 02 04 08
返回数据帧
Return Data frame 01 03 04 00 00 30 26 6f e9
数据处理
高位:00 00(16 进制)=0 (10 进制)
低位:30
26(
16 进制)=12326 ("10 进制)
因此该仪表二次测有功电能为:(0x65536 + 12326)/1000= 12.326 单位:kWh
无功电能作相同处理;如需一次测电能数 据,请自行乘以电压、电流变比。
Data processing: High bit: 00 00 (Hex) = 0 (decimal system) Low bit: 30 26 (Hex)=12326 (decimal system)
Secondary side active electric energy of this meter is: (Ox65536+12326)/1000 = 12.326 Unit: kWh
Reactive electric energy is doing same processing; if electric energy data of primary is needed, please multiply transformation ratio
of voltage, current. 6.5.2 写数据 Read in data
查询数据帧
Inquiry Data frame 01 03 00 02 00 02 65 Cb
返回数据帧
Return Data frame 01 03 04 03 b2 00 00 5a 50
26
例 3:开关量输出远程控制(控制字:0012H)
Example3: Switching output remote control (control character: 0012H)
写入数据帧
Read in data frames 01 10 00 12 00 01 02 00 02 24 e3 (DO1 闭合)
(DO1 closing)
01 10 00 12 00 01 02 00 01 64 e2 (DO2 闭合)
(DO2 closing)
返回数据帧
Return Data frame 01 10 00 12 00 01 Al CC (不成功,无返回}
(no success, no returning)
说明:
向开关量输出状态位远程写入 1,则闭合; 写入 0,则断开。
当继电器闭合持续时间为非 0 时(0 为长闭),继电器闭合持续时间为所设值。
Description: To Switching output status bit, remote read in 1, then closing; read in 0,thenopening. When relay closed duration is nonzero (0 is long closed), relay closed duration is the setting value.
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Headquarters: Acrel Co., Ltd. Address: Yulv Road 253, Madong Industrial Park, Jiading, Shanghai
Tel.: (86)021-69158300 69158301 69158302
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Service hotline: 800-820-6632
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