50
FnIO MODBUS Adapter NA-9189
FnIO S-Series
Copyright(C) CREVIS Co.,Ltd Support +82-31-273-6453 URL : www.crevis.co.kr
7. Trouble Shooting
7.1.
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.
NET LED turns off
Failure of communication with Master
Check main power for master and
communication cable.
NET LED flashed green
Failure of exchanging data with master
Check status in software for Master
configuration.
NET LED is red
Communication connecting lost
Check BUS line cable for connection
with master.
Check duplication address.
