Omron CP1H CPU Operation Manual page 622

Troubleshooting
PLC Setup Errors
Seven-segment display
0.0.→9.b.→ →0.0.→0.0.→ PLC Setup
→0.1.→f.f.→ PLC Setup
Built-in Analog I/O Errors
CPU Bus Unit Errors
588
0.0. → 9.b. →
→
PLC Setup setting error location
Internal address: 0000 hex
Internal address: 01FF hex
■ Reference Information
Error flag
Error code (A400)
Error information
Seven-segment
display
0.0.→8.a.→
■ Reference Information
Error flags
Error code (A400) ---
Error information
Seven-segment display
CPU Bus Unit
0.2.→0.0.→
error, unit num-
ber 0
CPU Bus Unit
0.2.→0.f.→
error, unit num-
ber F
■ Reference Information
Error flag
Error code (A400)
Error information
→
Probable cause and possible remedy
A set value error occurred in the PLC Setup.
The address of the error is stored in A406 in 16-bit binary.
Correct the PLC Setup with correct values.
PLC Setup Error Flag, A402.10
009B
PLC Setup error location, A406
Probable cause and possible remedy
A315.14 will turn ON when a built-in analog I/O error occurs and
stops the operation of built-in analog I/O.
Find and remove the cause of the error.
Built-in Analog I/O Error Flag, A315.14
Other Non-fatal Error Flag, A402.00
Analog Input 0 Open-circuit Error Flag, A434.00
Analog Input 1 Open-circuit Error Flag, A434.01
Analog Input 2 Open-circuit Error Flag, A434.02
Analog Input 3 Open-circuit Error Flag, A434.03
Probable cause and possible remedy
A data exchange error has occurred between the
CPU Unit and one of the CPU Bus Units.
Note Information on where the data exchange error
occurred (i.e., between the CPU Unit and what
unit number) is stored in A417. Check the Unit
given in A417.
Refer to the manual for the relevant Unit and remove
the cause of the error. Then turn ON the Restart Bit or
cycle the power supply.
Replace the Unit if operation is not restored when the
Unit is restarted.
CPU Bus Unit Error Flag, A402.07
0200 to 020F
CPU Bus Unit Error Unit Number Error Flags, A417
Section 11-2