Acrel DTSD1352, Инструкция по установке и эксплуатации

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13
The meter needs shielded twisted pair conductors to connect. Customers should consider the
whole network
’
s parameters such like communication wire
’
s length, the direction, communication
transformer and network cover range, etc.
注：
在布线工程上要严格按要求施工；
对于暂时不需要通信的仪表都要将他们连接到
RS-485
网络上，以便于诊断和测试；
进行
RS-485
电缆连接时，尽量使用双色双绞线，所有的
485
通信口“
A
”端接同一种颜色，
“
B
”端接另一种颜色。
RS-485
总线
(
从上位机通信口开始到任一被连接的仪表终端通信口
)
长不超过
1200
米。
Note:
Wiring should follow the wiring requirements;
Connect all the meter in the RS485 net work even some do not need to communication, which is
benefit for error checking and testing;
Use two color wires in connecting wires and all the A port use the same color.
No longer than 1200 meters of RS485 bus line.
9.1
地址表
Address table
仪表支持
MODBUS-RTU
协议中的
03H
命令与
10H
命令，
03H
为读多个寄存器，
10H
为写多个寄存器，协议数据格式请自行查询。下表为仪表的寄存器地址表：
MODBUS-RTU protocol has 03H and 10H command to read and write registers respectively.
The following chart is registers
’
address list:
数据地址
Address
数据名称
Variable
长度
Length
读/写
R/W
备注
Notes
0000H
当前总有功电能
Current total electricity
4 R
0002H
当前总有功尖电能
Current spike electric energy
4 R
0004H
当前总有功峰电能
Current peak electric energy
4 R
0006H
当前总有功平电能
Current flat electric energy
4 R
0008H
当前总有功谷电能
Current valley electric energy
4 R
000AH
当前正向总有功电能
Current forward active total
electric energy
4 R
000CH
当前正向有功尖电能
Current forward active spike
4 R