Socket Comm. Response Send Error; Tcp Connection Timeout; Ip Address Error; Connection Number Acquisition Error - Mitsubishi Electric M800 Series Manual

M800/M80/E80/C80 Series Alarm/Parameter Manual
14 Multi CPU Errors (A) [C80]
A01

Socket comm. response send error

Details
The response send failed during socket communications.
Remedy
Check the operation of the external device or switching hub.
Since there may be congestion of packets on the line, send data after a certain period of time.
Check if the connection cable is disconnected.
Check that there is no connection failure with the switching hub.
A01

TCP connection timeout

Details
A TCP ULP timeout error has occurred in the TCP/IP communication. (The external device does not send
an ACK response.)
Remedy
Check the operation of the external device.
Correct the TCP ULP timeout value.
Since there may be congestion of packets on the line, send data after a certain period of time.
Check if the connection cable is disconnected.
A01

IP address error

Details
The IP address is not set correctly.
Remedy
Correct the IP addresses.
A01

Connection number acquisition error

Details
The specified connection was already closed in TCP/IP communications.
Open processing is not performed.
Remedy
Perform the open processing for the specified connection.
Check if the open processing has been performed in the external device.
A01 Receive buffer securement error
Details
The specified connection was already closed in UDP/IP communications.
Open processing is not performed.
Remedy
Perform the open processing for the specified connection.
Check if the open processing has been performed in the external device.
A01 UDP/IP send failed
Details
Data was not sent correctly with UDP/IP.
Remedy
Check the settings for connection with the external device.
Check the operation of the external device or switching hub.
Since there may be congestion of packets on the line, send data after a certain period of time.
Check if the connection cable is disconnected.
Check that there is no connection failure with the switching hub.
Execute the PING test, and if the test was completed with an error, take the corrective action.
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IB-1501279-H