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FP2−CCU
6 − 5
6.3 Table of MEWTOCOL−COM Error Code
6.3 Table of MEWTOCOL−COM Error Code
21 Data Error:
• Situation
A data error occurred during communication.
There are three types of data errors: parity errors, framing errors, and unit
receive buffer errors.
• Example of error
This occurs if the communication format between the host computer side
and the PLC side is different.
• Precautions when the FP2 Computer Communication Unit is being
used
If the parity settings are different, the ERR LED lights but no error code is
returned.
• ERR LED on the FP2 Computer Communication Unit
Lights
22 Overrun Error:
• Situation
The CPU unit buffer is full, and no more data can be received.
• Example of error
This occurs if a command being sent before a response has been
returned in cases such as commands being sent continuously from the
host side.
• ERR LED on the FP2 Computer Communication Unit
Lights
24 Transmission Format Error:
• Situation
There is an error in the setting of a hierarchy control command.
• Example of error
This occurs if a hierarchy control command has not been notated
correctly.
• ERR LED on the FP2 Computer Communication Unit
Lights