Omron CS1W-PRM21 - Page 170

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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.