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Chapter 9 Appendix
9.1 Error Inspection
(1) PF311 LED status
The station mode is indicated as follows with the RDY, RUN, TOKEN, ERR, and ACC
LEDs on the front of the module.
The acyclic flashing pattern is as follows. If the error is not resolved after repeatedly
downloading configuration parameters from the configurator, please contact Toshiba.
Table 9-1 PF311 LED status
LED Status and Cause
RDY (green)
ON Transmission module normal
Slow flash
(1 Hz)
Firmware not stored
Fast flash
(4 Hz)
Hardware error or system error or in downloading firmware
configuration data
OFF Hardware failure
RUN (green)
ON Communicating
Cyclic flash
(4 Hz)
Standby
Acyclic flash Configuration error or fatal error
TOKEN (green)
ON Token retained
OFF No token
ERR (red)
ON Error on communication line
OFF No error detected
ACC(green)
ON Controller accessing
OFF Controller not accessing
LED-on
LED-off
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