Mitsubishi Electric Q81BD-J61BT11 User Manual page 210

13 COMMUNICATION BETWEEN THE MASTER STATION AND
INTELLIGENT DEVICE STATION (AJ65BT-R2)
MELSEC
(2) LED displays of the intelligent device station
Be sure that the LED displays show the following status:
24 V DC is being supplied.
AJ65BT-R2
PW The module is normally.
RUN
The data link is being
L RUN
executed normally.
SD
Sending data.
RD
L ERR.
Receiving data.
No error has occurred.
: On : Off
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