Mitsubishi Electric · MELSEC System Q/L Series
The communication processing buffer has run out of space, preventing further communication. This typically occurs due to consecutive reception of request messages using the MC protocol or when received data is not read promptly, causing the buffer to overflow.
Click steps to track your progress.
For MC protocol, send a new request only after receiving a response to the previous request.
For socket communication, enable received data read.
For socket communication, decrease the number of data sent from the target device.