
Programmable I/O (PIO) NA-9379, Basic setting
KI00341
2014-10
12.12
Trouble Shooting
12.12.1
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 check-sum
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 expan-
sion 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 are the same.
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