4 Control Relay(Function Code 05)
Query
This message forces a single Relay either on or off. Any Relay that exists
within the Ai205 can be forced to be either status (on or off). The address of
Relays starts 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 illegal
and will not affect that relay.
The example below is a request to the Ai205 number 17 to turn on Relay1.
Addr Fun DO addr DO addr Value Value CRC16 CRC16
hi Lo Hi lo hi lo
11H 05H 00H 00H FFH 00H 8EH AAH
Addr Fun Relay address Relay address Value Value CRC CRC
high Low High low high low
11H 05H 00H 00H FFH 00H 8EH AAH
Table4.11 Control Relay Response Message
5 Preset / Reset Multi-Register(Function Code 16)
Query
Function 16 allows the user to modify the contents of a Multi-Register. Any
Register that exists within the Ai205 can have its contents changed by this
message.
The example below is a request to an Ai205 number 17 to Preset Ep_imp
(17807783.3KWH), while its Hex Value 0A9D4089H. Ep_imp data address is
0156H and 0157H.
69
Table4.10 Control Relay Query Message
Response
The normal response to the command request is to retransmit the message
as received after the Relay status has been altered.
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