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Appendix
Example of Extended Diagnostics
Below an example of Extended diagnostics data is given, using the definitions above. The 6 mandatory bytes
preceding them are not shown.
The figure above shows the extended diagnostics of a slave device, which contains:
• Device related diagnostics:
One header byte and three device specific diagnostics bytes are shown in this example. The contents of
the diagnostics is device specific.
• Module related diagnostics:
One header byte and three module diagnostics bytes. The first of three bytes indicates pending diagnostics
in module1, the next byte indicates pending diagnostics in module14.
• Channel related diagnostics:
Two channel related diagnostics entries are shown: One for module 1 and one for module 14. In module 1,
Input channel 4, has detected an overload. In module 14, channel 8, has detected an high-limit exceeded
event.
7
6
5
4
3
2
1
0
0
0
0
0
0
1
0
0
0
1
0
0
0
1
1
0
0
0
0
0
0
1
Device specific
diagnostics field
of length 3
1
1
1
0
1
0
0
0
1
0
0
0
1
1
0
0
1
0
0
1
0
0
0
1
1
1
0
0
0
0
0
1
0
0
0
1
0
0
0
0
1
1
1
Module 1 has diagnostics
Module 14 has diagnostics
Header byte
Channel 4 (Input)
Channel 8
Overload, bit oriented
High Limit exceeded, byte oriented
Device specific contents
0
Device related diagnostics:
Module related diagnostics:
Channel related diagnostics:
Channel related diagnostics:
Header byte
Module 1
Module 14
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...