60
AcuDC 210/220 Series
4. Control Relay (Function Code 05)
Query
This message forces a relay to either turn "ON" or "OFF". Any relay that exists within
the meter can be forced to either "ON" or "OFF" status. Relay addresses start at
0000H (Relay1=0000H Relay2=0001H). The data value FF00H will set the relay on
and the value 0000H will turn it off; all other values are invalid and will not affect
that relay. The example below is a request to the meter number 1 to turn on Relay1.
Addr
Fun
DO addr HI DO addr LO Value HI
Value LO
CRC16 HI CRC16 LO
01H
05H
00H
00H
FFH
00H
8CH
3AH
Response
The normal response to the command request is to retransmit the message as
received after the relay status has been altered.
Addr
Fun
Do addr HI Do addr LO Value HI
Value LO
CRC16 HI CRC16 LO
01H
05H
00H
00H
FFH
00H
8CH
3AH
Table 4.10 Control Relay Query Message
Table 4.11 Control Relay Response Message
