Yaskawa MP3200 Troubleshooting Manual - Manual (Page 91)

5.2 Troubleshooting Message Communications
Message Communications Errors
5-16
 When Error Status Box Shows an Error
Check the nature of the error in the error status. The following tables list the most frequent error status.
 When the TCP Protocol Is Selected
 When the UDP Protocol Is Selected
The Error Status Column gives the most recent error. The error information is retained even
after recovering from the error and starting normal communications.
Error Status Description Cause Correction
2: Local Port
Number Error
Setting error in
local station port
number
The port number of a broken TCP
connection was bound.
Correct the application so that at
least one minute elapses after com-
pletion of the execution of the
Abort command before the Execute
command is turned ON in the mes-
sage function in the Machine Con-
troller.
A command was simultaneously
executed by another message func-
tion for the same remote device
before the connection was ended.
Correct the program so that no more
than one message function is exe-
cuted for each connection.
4: M-SND Con-
nection Error
TCP connection
error when using
the Send Mes-
sage function
The TCP connection request from
the Machine Controller was
rejected by the remote device.
Make sure that the network settings
of the remote device are set to open
a port for communicating with the
Machine Controller.
(Settings to check: The port number
for communicating with the
Machine Controller, TCP/UDP
selection, etc.)
5: M-RCV Con-
nection Error
TCP connection
error when using
the Receive Mes-
sage function An error has occurred in the
Machine Controller while process-
ing a TCP connection request from
the remote device. Make sure that the network settings
of the remote device are set cor-
rectly for the port for communicat-
ing with the Machine Controller.
7: TCP Data
Send Error Data sending
error
The remote device is not connected
or the power to the remote device is
OFF.
Make sure that the power to the
remote device is ON and that the
remote device is connected to the
Machine Controller with Ethernet
cables.
9: TCP Data
Receive Error Data reception
error
A TCP connection close request
was received from the remote
device. If the close request was unexpected,
correct the connection closing
sequence at the remote device.
12: Data Conver-
sion Error Error in protocol
conversion There was a protocol data format
error.
Match the settings for the protocol
type and code (BIN/RTU/ASCII)
between the remote device and the
Machine Controller.
Error Status Description Cause Correction
12: Data Conver-
sion Error Error in protocol
conversion There was a protocol data format
error.
Match the settings for the protocol
type and code (BIN/RTU/ASCII)
between the remote device and the
Machine Controller.
Information