Toshiba V Series - Page 217

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8.5 Troubleshooting
8
(c) Receive request
Start
End
Refer to the completion status
and eliminate the cause of the
error.
Verify the remote node IP address
and UDP port number.
Is the URCV_T
instruction completed ?
A timeout occurred ?
Error status --- 2848
No
Yes
Yes
1) Check the remote station IP
address and message transmission
UDP port number again.
2) Configure the router if there is a
router on the transmission line.
3) Check the network verification
items.
Are the remote node
IP address and UDP port
number correct ?
No
Yes
Transmit data from the remote station.
Is the remote station
transmitting data ?
No
Yes
No
Yes
Does a response come
back if a PING is issued to the
remote station ?
No
Yes
Is the error counter
read out from the RAS information
constant ?
RAS error counters: Alignment error
Short packet, CRC error
Confirm the status when the
USEND_T or URCV_T is not
completed.
It is possible that there is an error on
the network itself. Check the network
verification items.
Is the station status
such that run + socket
transmission is
enabled ?
Set the station to run + socket
transmission enabled using an
operating mode control request.
Yes
Is the waiting time set
to unlimited ?
No
No No
Open the local UDP port.
Has the local port been
opened ?
Yes
No
Yes
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