FP2−CCU

Specifications

6.3 Table of MEWTOCOL−COM Error Code

6.3Table of MEWTOCOL−COM Error Code

21Data 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

22Overrun 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

6 − 5