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Troubleshooting Section 11-2
PLC Setup Errors
â– Reference Information
Built-in Analog I/O Errors
â– Reference Information
CPU Bus Unit Errors
â– Reference Information
0.0.
→
9.b.
→
→ →
PLC Setup setting error location
Seven-segment display Probable cause and possible remedy
0.0.→9.b.→→0.0.→0.0.→ PLC Setup
Internal address: 0000 hex
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.
→0.1.→f.f.→ PLC Setup
Internal address: 01FF hex
Error flag PLC Setup Error Flag, A402.10
Error code (A400) 009B
Error information PLC Setup error location, A406
Seven-segment
display
Probable cause and possible remedy
0.0.→8.a.→ 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.
Error flags Built-in Analog I/O Error Flag, A315.14
Other Non-fatal Error Flag, A402.00
Error code (A400) ---
Error information 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
Seven-segment display Probable cause and possible remedy
0.2.→0.0.→ CPU Bus Unit
error, unit num-
ber 0
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.
0.2.→0.f.→ CPU Bus Unit
error, unit num-
ber F
Error flag CPU Bus Unit Error Flag, A402.07
Error code (A400) 0200 to 020F
Error information CPU Bus Unit Error Unit Number Error Flags, A417