Mitsubishi Electric MELSEC iQ-R Series - Page 556

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36 ERROR CODES
36.4 List of Error Codes
1133H Socket
communications
response send
error
• The response send failed during
socket communications.
Continue • 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 Ethernet
communication load is high
because of the Ethernet functions
being executed. Use the Ethernet
functions so that the
communication load is reduced.
• Check if the connection cable is
disconnected.
• Check that there is no connection
failure with the switching hub.
 Always
1134H TCP connection
timeout
• A TCP ULP timeout error has
occurred in the TCP/IP
communication. (The external device
does not send an ACK response.)
Continue • Check the operation of the
external device.
• Check and 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 Ethernet
communication load is high
because of the Ethernet functions
being executed. Use the Ethernet
functions so that the
communication load is reduced.
• Check if the connection cable is
disconnected.
 Always
1152H IP address error • The IP address is not set correctly. Continue • Correct the IP addresses. Parameter
information
Always
1155H Connection
number
acquisition error
• The specified connection was already
closed in TCP/IP communications.
• Open processing is not performed.
Continue • Perform the open processing for
the specified connection.
• Check if the open processing has
been performed in the external
device.
 Always
1157H Receive buffer
securement
error
• The specified connection was already
closed in UDP/IP communications.
• Open processing is not performed.
Continue • Perform the open processing for
the specified connection.
• Check if the open processing has
been performed in the external
device.
 Always
1165H UDP/IP send
failed
• Data was not sent correctly with UDP/
IP.
Continue • 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 Ethernet
communication load is high
because of the Ethernet functions
being executed. Use the Ethernet
functions so that the
communication load is reduced.
• Check if the connection cable is
disconnected.
• Check that there is no connection
failure with the switching hub.
• Execute a PING test. If the test
completes with an error, take an
action to correct the error.
 Always
Error
code
Error name Error details and cause Stop/
continue
Action Detailed
information
Diagnostic
timing