Beijer Electronics NA-9379 - Manual (Page 56)

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MODBUS Programmable I/O NA-9379 FnIO S-Series
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8. Trouble Shooting
8.1. How to diagnose by LED indicator
LED Status Cause Action
All LED turns off
- No power - Check main power Cable
- System power is not supplied.
- Contact Sales team and send module
for repair.
MOD LED flashes green
- Failure of initialization EEPROM
parameter. - Contact Sales team and send module
for repair.
MOD LED flashes red
- Excess of expansion slot
- Excess of IO size
- Wrong IO composition
- Occurrence of EEPROM checksum
error
- Use expansion slot up to 32.
- Compose that IO total size is not
excess.
- Check composition I/O Module
MOD LED is red
- Wrong address ID
- Occurrence critical error in firmware - Contact Sales team and send module
for repair.
I/O LED turns off
- Failure of realization expansion Module
- None expansion Module - Check connector status both NA
series and expansion module.
I/O LED flashes red
-Failure of configuration baud rate
- Check communication cable with
Master
- Check power for master.
-Failure of initialization I/O
- Use expansion slot up to 32.
- Compose that IO total size is not
excess.
NA series notice unidentified
expansion module ID. Check status of
expansion module.
I/O LED is red -Failure of exchanging I/O data
Check status of expansion IO
connection.
RUN LED flashed red -Failure of Module Configuration
Check the module hardware and
software configurations are the same.