Mitsubishi QJ71PB92V-U-HW User Manual page 16

(1) Indicator LEDs
LED
RUN
SD/RD
READY
RSP ERR.
TEST
TOKEN
PRM SET
FAULT
Figure 4.2 Indicator LEDs
Table 4.2 Indicator LEDs
Status
ON Normally operating
OFF Hardware error (watchdog timer error) or power failure
ON
Exchanging I/O data*1 or during acyclic
communications *2
Flashing
Not communicating with DP-Slave, or being in the
OFF
standby system
Ready to communicate or communication being
ON
performed
OFF Not ready to communicate or no communication
ON A communication error has occurred.
OFF No communication error
ON Executing self-diagnostics or flash ROM initialization
Flashing Executing self-diagnostics
Not executing self-diagnostics or flash ROM
OFF
initialization
ON
Token being passed*3
Flashing
OFF No token passing, or being in the standby system*3
ON Operating in parameter setting mode (mode 1)
Flashing The written parameters are invalid
Operating in operation mode other than parameter
OFF
setting mode (mode 1)
ON An error has occurred
OFF Normally operating
Description
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