Inovance H3U Series - Page 596

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9
9 Communication 9.2.2 Setting Communication Protocols
● COM1
M8120 Reserved D8120 Communication format
M8121 RS instruction - sending D8121 Communication station number
M8122
Modbus - communication
execution state
RS instruction - ag of sending
D8122
Downloading and HMI monitoring protocols
- communication format
RS instruction - volume of residual data
transmitted
M8123
Modbus - communication error
ag
RS instruction - ag of receipt
D8123 RS instruction - volume of received data
M8124 RS instruction - receiving D8124 RS instruction - Start of Text (STX)
M8125 Reserved D8125 RS instruction - End of Text (ETX)
M8126 Reserved D8126 Communication protocol
M8127 Reserved D8127
PC link protocol - starting data address
required
M8128 Reserved D8128
Modbus - number of station with
communication errors
PC link protocol - volume of sent data
required
M8129 Timeout criterion D8129 Communication timeout duration