FX3U Series Programmable Controllers
User’s Manual - Hardware Edition
288
14 Test Operation, Adjustment, Maintenance and Troubleshooting
14.6 Judgment by Error Codes and Representation of Error Codes
Error
bit
PLC operation at
error occurrence
Contents of error Action
Special block error condition [D8166]
b0
Continues
operation
Unit 0 access error
This error occurs when an operation is executed
or when the END instruction is executed.
• Review the program and check the contents of
the operands used in applied instructions.
• Verify that the specified buffer memories exist
in the counterpart equipment.
• Verify that extension cables are correctly
connected.
b1
Unit 1 access error
b2
Unit 2 access error
b3
Unit 3 access error
b4
Unit 4 access error
b5
Unit 5 access error
b6
Unit 6 access error
b7
Unit 7 access error
b8 to
b15
⎯ Not used
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