Mitsubishi Electric MELSEC Q Series Reference Manual page 138

4 SETTING AND PROCEDURE BEFORE OPERATION
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REMARKS
Check the test condition and error details with the following link special register
areas.
• Baton pass status (host) (SW0047) → 1FH: Offline test
• Cause of baton pass interruption (SW0048) → 2H: Offline test
• Offline test execution item/faulty station (requesting side) (SW00AC) → 8H:
Internal self-loopback test
• Offline test result (requesting side) (SW00AD) → 0: Normal, 1 and later: Error
code
MELSEC-Q
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