Applicable Systems
DVP
AH500
AS300
C2000
MS300
Symptoms
An illegal instruction was detected in the program. The PLC cannot execute the instruction.
Possible Causes
- Instruction not supported by the DVP firmware version
- Corrupted program data producing an unrecognized opcode
Troubleshooting Steps
- Step 1: Locate the illegal instruction in the program
Illegal instruction is identified - Step 2: Replace with a supported instruction or update firmware
Program compiles without error
How to Reset
To reset: Replace the illegal instruction, then recompile and download.
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Source: Delta DVP PLC Programming Manual, Delta Electronics
Category: PLC & VFD
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