User Manual

SGCAN300 CANBUS RELAY MODULE USER MANUAL
SGCAN300 CANBUS Relay Module 2020-08-28 Version 1.0 Page 12 of 12
8 TOUBLESHOOTING
Table 7 –Troubleshooting
Symptoms
Possible Solutions
Communication failure of
MSC1 and MSC1 of the other
module
1.Check communication line and communication terminal resistance;
2.Check digital input status and effective type;
3.Check whether the communication baud rate is consistent with the
controller;
4.Check whether the dial switch 7 is Non-ON;
5.Observe the communication indicator light to judge the
communication error.
Communication failure of
RS485 and RS485 of other
module
1.Check communication line and communication terminal resistance;
2.Check whether the communication baud rate is consistent with the
controller;
3.Check whether the dial switch 7 is ON;
4.Observe the communication indicator light to judge the
communication error.
Communication failure of
MSC1 and MSC2
1. Check communication line and communication terminal resistance;
2. Check digital input status and effective type;
3. Check whether the communication baud rate is consistent with the
controller;
4.Observe the communication indicator light to judge the
communication error.
There is no response for power
on and all lights are off
Check dial switch 8 and it should be Non-ON.
_____________________________________