UK
RS-485 gateway
9
6.3 Exchange serial data
Write serial data
Write serial data reply
Byte no.
Exchange reply
0
Command code 19 = write
1
Index = 3 (serial data)
2
Write length (1���32)
3���34
Data to be sent (length corresponds to byte
2)
Write serial data answer
Byte no.
Exchange reply
0
Command code 83= data exchange OK
Read serial data
Read serial data request
Byte no.
Exchange reply
0
Command code 18= read
1
Index = 3 (serial data)
2
Read length = 1���32
Read serial data answer
byte no.
Exchange reply
0
Command code 82 = data exchange OK
1���32
received data