Omron CS1W-MC221 - 02-2008 Operation Manual page 283

PLC Interface Area
CS1W-MC421 PLC Interface Area Inputs (MC Unit to CPU Unit)
Word Contents Bit
n+19 System 00 to
Status 15
256
Error code (4-digit Hex)
3 2 1 0
x16 x16 x16 x16
The above is the error code format of the MC Unit. An error code is valid while
the Error Flag is ON. If an error occurs, check the error type data to find the
type of error, such as a system, tasks 1 to 4, X-axis to U-axis error.
n = CIO 2000 + 10 x unit number (words)
Description
Normal: 0000
Section 5-3
Page
309