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8.3.3 Relay Control (Function Code 05H)
Use 05 command to control the relay. Relays are addressed starting at 0
Data Field is 0xFF00, request the relay to be ON.
Data Field is 0x0000, request the relay to be OFF.
Request Packet
(Master
→
SPM33)
Response Packet
(SPM33
→
Master)
Unit ID/ Slave
address
1 byte
Unit ID/ Slave address
1 byte
05 H (Function
Code)
1 byte
05 H (Function Code)
1 byte
Start register
address
2 bytes
Start register address
2 bytes
Data field
FF
Data field
FF
Data field
00
Data field
00
CRC check code
2 bytes
CRC check code
2 bytes
36
Содержание SPM33
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Страница 76: ...three phase three wire system 3CT three phase three wire system 2CT 71...