Omron · CJ-series CJ2 CPU Unit
The connected I/O Units do not match the registered I/O tables, or the number of connected Units differs from the number registered. This is a fatal error, indicated by flag A401.10. Auxiliary Area A405.08 specifically turns ON if an Interrupt Input Unit is in the wrong position or registered incorrectly.
Click steps to track your progress.
Turn OFF the power supply and connect the correct I/O Units if the number of units is incorrect.
Perform the I/O verification operation by selecting 'Options - Compare with Project' from the CX-Programmer I/O Table Menu.
Generate new I/O tables and read them using CX-Programmer to check for Units that are not being recognized, which may indicate a Unit failure.
If the number of Units is correct but a discrepancy persists, confirm the Unit in question, turn OFF the power supply, and correct the Unit connections.
Correct mistakes in the I/O tables by generating new ones or editing existing tables using CX-Programmer.
If an Interrupt Input Unit is connected in a slot on the CPU Rack that is not in the specified range, move the Unit to one of the specified CPU Rack slots (0 to 3 or 0 to 4 depending on CPU model).