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V: 1.0 Revised: Jan. 2018
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Appendix
Response
The correct response to this request is to send back the received data after the relay status
is changed.
Table B-11 Response Frame of Control Relay Status
B.2.4 Control Relay Output (Function Code 05)
Query
This query frame forces the rely status to ON or OFF. The AcuDC 240 relay output address
starts from 0000H(Relay 1= 0000H, Relay 2= 0001H).
Data FF00H changes the relay status to ON, data 0000H changes the relay status to OFF.
The relay will not be influenced by any other data input.
The following is to query slave device 1 to set relay status as ON.
Table B-10 Query Frame of Control Relay Status
Addr Fun DO Addr Hi DO Addr Lo Value Hi Value Lo CRC16 Hi CRC 16 Lo
Hex 01H 05H 00H 00H FFH 00H 8CH 3AH
Dec 1 5 0 0 255 0 140 58
Addr Fun DO Addr Hi DO Addr Lo Value Hi Value Lo CRC16 Hi CRC 16 Lo
Hex 01H 05H 00H 00H FFH 00H 8CH 3AH
Dec 1 5 0 0 255 0 140 58
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