Mitsubishi Electric MELSEC Q Series Reference Manual page 283

8 TROUBLESHOOTING
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Error history monitor
Setup confirmation test
Station order check test
8 - 3
[Status of self station]
• Parameter setting
• Reserved station setting
• Transmission mode
• Duplex transmission setting
• Duplex transmission status
[Network information]
• Network Type
• Module No.
• Network No.
• Group No.
• Station No.
[Loop switching] Number of occurrences
[Transient transmission] Number of occurrences
[Forward loop]
• Retry
• Line trouble
• Communication error (UNDER, CRC, OVER, etc.)
[Reverse loop]
• Retry
• Line trouble
• Communication error (UNDER, CRC, OVER, etc.)
Error history details
Clear error history
..............................Section 7.9
Network test
.......................................Section 4.10.1
Loop test
..............................Section 4.10.2
..............................Section 4.10.3
.................................Section 4.10.4
Communication test
[Network information]
• Network Type
• Module No.
• Network No.
• Group No.
• Station No.
[Loop switching]
Station No., Factor, Switched to
[Transient transmission error]
Err. code, Error type
[Clear type]
Retry counter clear, etc,
MELSEC-Q
8 - 3