PROFIBUS DP – CI851
Section 5 Maintenance
130
3BSE 027 941 R301
PROFIBUS DP – CI851
Table 24. PROFIBUS DP CI851 – Fault-Finding
Fault
Possible Cause and Corrective Action
Neither R(un) nor F(ault) LEDs
are ON
The CI851 board is in the process of being re-
started or configured. Allow time for this to finalize.
If the condition persists, and all other units on the
CEX-bus have non-illuminated LEDs:
•
Check the CEX-bus fuse inside the PM8xx
processor unit.
•
Initiate a reset signal (INIT) from the PM8xx
processor unit.
•
Replace the CI851 unit.
F(ault) LED is ON
Check all cables and connectors for damage,
loose or incorrect terminations.
•
Repair as necessary.
R(un) LED is flashing
Check that the relevant units are sending data.
Check if the CI851 board is in the process of
being restarted or configured. If so, allow time for
this finalize.
If the condition persists:
•
Halt the application program and initiate a
restart.
•
Replace the CI851 board.
Содержание AC 800M
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Страница 3: ...Controller Hardware Hardware and Operation ControlIT AC 800M Version 2 1...
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Страница 20: ...Related Documentation About This Book 20 3BSE 027 941 R301...
Страница 26: ...Operating Environment Safety Summary 26 3BSE 027 941 R301...
Страница 42: ...Product Release History Section 1 Introduction 42 3BSE 027 941 R301...
Страница 108: ...Powering from an External 24 V DC Source Section 3 Configuration 108 3BSE 027 941 R301...
Страница 118: ...Verification of Redundant CPU Section 4 Operation 118 3BSE 027 941 R301...
Страница 212: ...Low Voltage Directive LVD Appendix D Directive Considerations 212 3BSE 027 941 R301...
Страница 214: ...Hazardous Location Approval Appendix E Standards 214 3BSE 027 941 R301...
Страница 228: ...QGH 228 3BSE 027 941 R301...
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