Chapter 9 Expansion Module
229
Address
The ID of MBUS module, whose range is from 0H used for broadcast address to 63H, must be the one of the ID
setting of SG2 basic unit. Modify the ID number of the SG2 main unit, this new ID is effective when restart the
power or it dose not receive any communication command within 0.5s.
LED state display
Error
code
State indication
Error type and reason
Manage method
remark
56H
The error LED light
flick slow (2Hz)
The connection between
SG2 and COMM. Mode
is improper
check-up connection
among SG2, IO mode
and COMM. Mode
The question is connection
with the mode before it if
there are many expansion
modes.
55H
The error LED light
is ON
SG2 set error: IO number
set is different from
factual.
check-up SG2 set
51H
54H
The error LED light
flick slow (2Hz)
ModBus order error:
data frames, function
code, address of register,
CRC , data unseemliness,
verifying error, etc.
check-up the order and
communication set
according COMM.
protocol
59H
The error LED light
flick quickly(5Hz)
COMM. data error:
Verifying bit error,
Length of data respond
error, CRC error
Make sure the
connection between
SG2 and COMM.
Mode is credible,
describe environment
interfere.
※
More information to see R06-SG2-MBUS-D01V31(SG2-MBUS Communication User Manual).
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