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Appendix
Header byte
Module Diagnostics byte
Consecutive bytes contain the diagnostics flags for Module 8 through 15, 16 through 23, etc.
The Module related diagnostics information is usually followed by the Channel related diagnostics, which con-
tain the actual diagnostics data per module.
Channel Related Diagnostics
Channel related diagnostics contain diagnostics information related to a specific channel in a configured I/O
module, e.g. over peak current detected on current input channel 2, module 0.
The Channel related diagnostics information entry in the diagnostics message, always consists of three bytes,
which are outlined below. From these bytes the actual event can be deducted.
Bit
Name
Description
00
~
05
Block length
These bits contain the length of the Module related diagnostics data block,
including the header byte. The Module diagnostics flags will follow this header
byte. Maximum length of the block, including the header is 63 bytes.
06
~
07
Reserved
Fixed to 01.
The combination of bit 6 and 7 indicate the type of diagnostics, i.e. 01 indicates
Module related diagnostics data.
Bit
Name
Description
00
Module 0 Diagnostics
When set, this bit indicates that there is Diagnostics information pending related
to configuration module 0, i.e. the first configuration module.
01
Module 1 Diagnostics
When set, this bit indicates that there is Diagnostics information pending related
to configuration module 1.
02
Module 2 Diagnostics
When set, this bit indicates that there is Diagnostics information pending related
to configuration module 2.
03
Module 3 Diagnostics
When set, this bit indicates that there is Diagnostics information pending related
to configuration module 3.
04
Module 4 Diagnostics
When set, this bit indicates that there is Diagnostics information pending related
to configuration module 4.
05
Module 5 Diagnostics
When set, this bit indicates that there is Diagnostics information pending related
to configuration module 5.
06
Module 6 Diagnostics
When set, this bit indicates that there is Diagnostics information pending related
to configuration module 6.
07
Module 7 Diagnostics
When set, this bit indicates that there is Diagnostics information pending related
to configuration module 7.
Summary of Contents for SYSMAC CJ1W-PRM21
Page 2: ...iv...
Page 36: ...22 Basic Operating Procedure Section 1 5...
Page 52: ...38 Defining PROFIBUS DP in the Software Section 2 5...
Page 112: ...98 Allocated CIO Area Words Section 4 2...
Page 122: ...108 Command Response Reference Section 5 2...
Page 160: ...146 Replacing the Unit Section 7 8...
Page 174: ...160 Appendix...
Page 180: ...166 I O Data Conversions Appendix D...
Page 186: ...172 Configurator Error and Warning Messages Appendix E...
Page 187: ...173 Index...
Page 188: ...174 Index...
Page 190: ...176 Revision History...