Omron SYSMAC CS Series Operation Manual page 260

Slave Diagnostics Message
Channel Identifier byte
Bit Name
00 Channel number
~
05
06 I/O type
~
07
Error Identifier byte
Bit Name
00 Error number
~
04
05 Channel size type
~
07
These bits contain the number of the channel, which reports the diagnostics. The
channel number ranges from 0 to 63.
Bit 6 and 7 indicate the type of I/O channel, from which the diagnostics data is
sent.
• 00: Reserved
• 01: Input
• 10: Output
• 11: Input/Output
These bits contain the number of the error which occurred at the channel. The
error number ranges from 0 to 31, and can have the following meaning:
• 0: Reserved
• 1: Short circuit
• 2: Under voltage
• 3: Over voltage
• 4: Overload
• 5: Over temperature
• 6: Line break
• 7: Upper limit value exceeded
• 8: Lower limit value exceeded
• 9: Error
• 10 ~ 15: Reserved
• 16 ~ 31: Manufacturer specific
Bit 5, 6 and 7 indicate the size of the channel, from which the diagnostics data is
sent.
• 000: Reserved
• 001: Bit
• 010: 2 Bit
• 011: 4 Bit
• 100: Byte
• 101: Word
• 110: 2 Words
• 111: Reserved
Description
Description
Appendix B
239