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139
Troubleshooting Using Error Status
Section 7-4
7-4-2
Master Status 2 Word
The Master Status 2 Word (CIO Word n+6) contains error indications on the
PROFIBUS interface and network. The figure below shows the Master Status
2 Word layout. The corresponding bit flag will turn ON if an error event has
occurred.
Note n = CIO 1500 + (25 x unit number).
09
File read error
An error has occurred, when loading the configuration from the non-volatile mem-
ory to the volatile memory at start up. Most likely cause is a failure or interruption
during the writing process.
Most likely causes:
• A failure or interruption during the writing process.
• A failure during the reading process.
• A faulty Memory Card.
To correct this:
• Check the Memory Card for faults.
• Restart the PLC Unit, to re-download the configuration.
• If the problem persists, use CX-Profibus to re-download the configuration.
• If the problem persists, replace the PROFIBUS-DP Master unit.
13
Error Log storage error
An error has occurred, when writing the error log to the non-volatile memory, or
when reading the error log from non-volatile memory during start up.
Most likely causes: A failure or interruption during the writing process.
To correct this:
• Send an ERROR LOG CLEAR FINS command to the Unit.
• Restart the Unit.
• If the problem persists, replace the PROFIBUS-DP Master unit.
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
Word n+6
Disturbed bus error
PROFIBUS protocol error
Double Master address error
Hardware error
Mode command error
Parameter error
Bit
Name
Description / Correction
00
Disturbed bus Error
An error has occurred in the PROFIBUS interface, with distorted messages
received by the PROFIBUS-DP Master Unit.
Most likely causes:
• No or invalid termination or no inductors used at high baud rates.
• Faulty wiring.
To correct this:
• Check the termination on the appropriate stations.
• Restart the PLC Unit, to re-download the configuration.
• If the problem persists, use CX-Profibus to re-download the configuration.
• If the problem persists, replace the PROFIBUS-DP Master unit.
Содержание SYSMAC CJ1W-PRM21
Страница 2: ...iv...
Страница 36: ...22 Basic Operating Procedure Section 1 5...
Страница 52: ...38 Defining PROFIBUS DP in the Software Section 2 5...
Страница 112: ...98 Allocated CIO Area Words Section 4 2...
Страница 122: ...108 Command Response Reference Section 5 2...
Страница 160: ...146 Replacing the Unit Section 7 8...
Страница 174: ...160 Appendix...
Страница 180: ...166 I O Data Conversions Appendix D...
Страница 186: ...172 Configurator Error and Warning Messages Appendix E...
Страница 187: ...173 Index...
Страница 188: ...174 Index...
Страница 190: ...176 Revision History...