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CHAPTER 6 ND-70895 (E)
Page 94
Revision 1.0
MAINTENANCE
Fault Diagnosis
4.2.1 TCP/IP Link Failure
For details of System Massage “4-R” and “26-V”, see Section 3.2.1 and 3.2.2 in this Chapter.
According to each fault situation, perform the repairing procedure referring to Table 6-4 and Table 6-5.
When Message “4-R” is displayed:
When Message “26-V” is displayed:
START
A
Table 6-4 Repairing Procedure for TCP/IP Link Failure (Message “4-R”)
ERRK Detail information of ERRK Check Item
01
TCP/IP connection is down for the TCP connection
disconnection from Host.
Re-start the Host
02
Incorrect text format is received. [1] Check the software operation on the
Host side
[2] Check the LAN cable connection
0A
TCP/IP connection establishment is not completed for the
TCP connection disconnection ordered from Host.
Re-start the Host
0B
TCP/IP connection establishment is not completed for the
TCP connection disconnection ordered from Host.
[1] Check the TCP/IP transmission
capacity on the UAP side is proper
or not.
[2] Check the system operation on the
UAP side.
0C
According to Heart Beat function of Host, abnormal status of
the Host system operation is detected.
Check system operation of the Host
0D Not used
0E
TCP port is released due to the detection of abnormal state in
the TCP/IP port (such as B-level Infinite Loop, etc.).
Re-check the operation status of Host.
0F~FF Not used
Table 6-5 Repairing Procedure for TCP/IP Link Failure (Message “26-V”)
ERRK Detail information of ERRK Check Item
01
TCP/IP connection is down because the text is not transmit-
ted continuously.
[1] Check the TCP/IP Transmission
capacity on the UAP side is proper
or not.
[2] Check the operation status on the
UAP side is normal.
02
Incorrect text format is received. [1] Check the software operation on the
Host side.
[2] Check the LAN cable connection status.
03
TCP/IP connection is released due to the TCP port discon-
nection order from the Host.
Re-start the Host computer.
04
TCP port is released due to the detection of abnormal state
in the Host operation.
Re-check the operation status of Host.
05
TCP/IP connection cannot be established due to the connec-
tion port capacity over.
The number of allowed ports for application
use via TCP/IP must be 16 or less. Adjust the
total port number within this range.