Mitsubishi Electric Melsec QJ71LP21 Reference Manual page 146

4 SETUP AND PROCEDURES BEFORE STARTING THE OPERATION
4 - 40
REMARKS
Testing status and the result can be checked in the following link special registers.
Baton pass status (host)
Cause of baton pass interruption
Offline test execution item/faulty
station (requesting side)
Offline test result (requesting side)
For details of how to check the error contents, refer to Chapter 8.
SW0047 1F
H
SW0048 2
H
SW00AC 03
H
or
04
H
SW00AD 0
1 or larger : Error code
MELSEC-Q
: Offline test
: Offline test
: Loop test
: Normal
4 - 40