CV500ETN01 Omron, CV500ETN01 Datasheet - Page 248

• Manufacturer Part Number: CV500ETN01
• Description: Programmable Logic Controller
• Manufacturer: Omron

Specifications of CV500ETN01

• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

8-5
Troubleshooting with Response Codes
00: Normal
completion
01: Local
node error
02: Remote
node error
Main code
Troubleshooting with Response Codes
00
03: Local node
send error
05: Node address
setting error
07: Local node
busy, cannot
send
01: Remote node
not in network
02: No such Unit
05: Response
timeout
Sub-code
You can troubleshoot the errors in FINS communications from the response
codes when the SEND(090), RECV(098), or CMND(490) instructions have
been used. For the storage areas of the response codes refer to information
on page 141 under 6-6-4 Writing Programs.
The table below lists response codes (main and sub-codes) returned after
execution of FINS commands, the probable cause of errors, and recom-
mended remedies. The response codes provided here are for the Ethernet
Unit. Refer to the FINS Command Reference Manual (W227) or the operation
manuals for the relevant Unit for further information on response codes.
The 6th, 7th, and 15th bits of the response codes have specific functions. The
6th bit will be ON when a non-fatal error has occurred in the PC at the remote
node; the 7th bit will be ON when a fatal error has occurred in the PC at the
remote node; and the 15th bit will be ON when a network relay error has
occurred. Refer to information given after the following table for more informa-
tion on relay errors.
---
---
Local IP address
System load
IP address table,
IP router table
Control data in
instruction
Response to
CONTROLLER
STATUS READ
and PROTOCOL
STATUS READ
FINS command
Control data in
instruction
Read error log
Check point
Bit
1: Relay error flag
7
---
Send error in local node was
caused by lack of available
space in internal buffers.
The network cannot be
accessed because the IP
address setting is not correct.
The internal buffers are full
because there is too much traf-
fic at the local node, preventing
data from being sent.
IP address of remote node not
set correctly in IP address table
or IP router table.
No node with the specified unit
address.
Message packet was corrupted
by transmission error.
Response time-out, response
watchdog timer interval too
short.
The transmission frame may
be corrupted or the internal
reception buffer full.
Main response code (MRES)
6
1: PLC fatal error flag
5
First byte
Probable cause
4
3
2
1
0
7
6
Sub-response code (SRES)
1: PLC non-fatal error flag
5
Second byte
4
---
Reduce the load (traffic) on the
Ethernet Unit. Check your user
applications.
Correct the local IP address.
Correct the user application to
reduce traffic at the Ethernet
Unit.
Set IP address of remote node
into IP address table and, if inter-
network transmission is required,
into the IP router table.
Check the remote node’s unit
address and make sure the cor-
rect one is being used in the con-
trol data.
Check the protocol and controller
status by reading them with FINS
commands. Increase the num-
ber of transmit retry attempts.
Increase the value for the
response monitor time in the
control data.
Read out the error log and cor-
rect as required.
3
2
1
0
Remedy
Section 8-5
223