Chapter 6 Operation
6F8C1575
62
■ Changing the operation mode using the operation mode key switch
Table 6-1 Changing the operation mode key switch
Switch position
Operation
HALT
Selecting HALT from other position changes to the HALT mode.
If you turn on the power in the HALT condition, the controller starts
in the HALT mode. Operation mode change from nV-Tool is not
accepted.
RUN
Selecting RUN from HALT changes to the RUN mode.
Operation mode change from nV-Tool enables the HALT mode.
P-RUN
The operation status is the same as RUN.
Writing to the entire program is forbidden.
■ Monitoring the status with the controller status display LED
Monitor the operating status of the controller with the controller status display LED.
Table 6-2 Controller status display LED
−
−
Online in duplex operation
−
−
Standby in duplex operation
Equalization being received.
−
−
−
−
−
−
−
−
ON for each error (failure)
detected/ recovered
(OR of minor system failure)
−
diagnosis and scheduled
diagnosis
Duplex tracking in progress
(sending/receiving)
−
net I/O in loop connection
net I/O in scan transmission
−
−
FN board is not operating.
−
The green light indicates a normal condition, the yellow light indicates light error condition, the red light
indicates an abnormal condition in principle. The light-off indicates that there is nothing applicable. No
green light turned on indicates an error regardless of whether a red light is turned on or not.
RUN
HALT
ONL
STBY
BATT
TRK
ERR
ALM
LP
SCAN
TRUN
HLTH