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MAINTENANCE

Fault Diagnosis

4.2.1TCP/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 6-4and Table 6-5. When Message “4-R” is displayed:

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	Re-start the Host
01	disconnection from Host.	Re-start the Host
	disconnection from Host.

	Incorrect text format is received.	[1] Check the software operation on the
02		Host side
02
		[2] Check the LAN cable connection

0A	TCP/IP connection establishment is not completed for the	Re-start the Host
0A	TCP connection disconnection ordered from Host.	Re-start the Host
	TCP connection disconnection ordered from Host.

	TCP/IP connection establishment is not completed for the	[1] Check the TCP/IP transmission
	TCP connection disconnection ordered from Host.	capacity on the UAP side is proper
0B		or not.
		[2] Check the system operation on the
		UAP side.

0C	According to Heart Beat function of Host, abnormal status of	Check system operation of the Host
0C	the Host system operation is detected.	Check system operation of the Host
	the Host system operation is detected.

0D	Not used

0E	TCP port is released due to the detection of abnormal state in	Re-check the operation status of Host.
0E	the TCP/IP port (such as B-level Infinite Loop, etc.).	Re-check the operation status of Host.
	the TCP/IP port (such as B-level Infinite Loop, etc.).

0F~FF	Not used

When Message “26-V” is displayed:

ERRK	Detail information of ERRK	Check Item

	TCP/IP connection is down because the text is not transmit-	[1] Check the TCP/IP Transmission
	ted continuously.	capacity on the UAP side is proper
01		or not.
01

		[2] Check the operation status on the
		UAP side is normal.

	Incorrect text format is received.	[1] Check the software operation on the
02		Host side.
02

		[2] Check the LAN cable connection status.

03	TCP/IP connection is released due to the TCP port discon-	Re-start the Host computer.
03	nection order from the Host.	Re-start the Host computer.
	nection order from the Host.

04	TCP port is released due to the detection of abnormal state	Re-check the operation status of Host.
04	in the Host operation.	Re-check the operation status of Host.
	in the Host operation.

	TCP/IP connection cannot be established due to the connec-	The number of allowed ports for application
05	TCP/IP connection cannot be established due to the connec-	use via TCP/IP must be 16 or less. Adjust the
05	tion port capacity over.	use via TCP/IP must be 16 or less. Adjust the
	tion port capacity over.	total port number within this range.
		total port number within this range.

CHAPTER 6

ND-70895 (E)

Page 94

Revision 1.0