Here's a possible question related to the solution with the described error:

What is the root cause of the M7081-PLC timed out waiting for the host computer to transmit the MARK point identification signal machine code of KM-ASSYM2-01 error id of
The M7081-PLC timed out waiting for the host computer to transmit the MARK point identification signal error usually occurs when the PLC is unable to receive or interpret the signal from the host computer within the specified time limit.