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10-3
Section
Error Log
171
10-2 Error Status
The Ethernet Unit will output error status to the following word in the CIO Area of
the CPU Unit. This information can be used in troubleshooting errors.
Word = CIO 1500 + (25 x unit number) +18
Transceiver echo test error
IP address setting error
IP address table error
IP router table error
Routing table error
Transceiver error
Address disagreement
EEPROM error
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
The corresponding bit will turn ON when an error occurs
Bit
Name
Correction
01
Transceiver echo test error Check the transceiver or transceiver cable.
02
IP address setting error
Set the correct IP address on the rotary switches on the back of the Unit. Do not
set any of the following IP addresses.
•
Host IDs that are all 0 or all 1.
•
Network IDs that are all 0 or all 1.
•
Subnetwork IDs that are all 1.
•
Addresses beginning with 127 (7F Hex).
03
IP address table error
Correct the IP address table. If the problem persists, replace the CPU Unit.
04
IP router table error
Correct the IP router table. If the problem persists, replace the CPU Unit.
06
Routing table error
Correct the routing tables. If the problem persists, replace the CPU Unit.
07
Transceiver error
Check the transceiver or transceiver cable.
14
Address disagreement
Make sure that the node number and the last byte of the IP address are the same
and set other host IDs to 0.
Change the address conversion method.
15
EEPROM error
Restart the PC. If the problem persists, replace the Ethernet Unit.
10-3 Error Log
The Ethernet Unit provides an error log that records errors that have occurred
during Ethernet Unit operation. The contents of the error log can be read or
cleared from a Programming Device, such as the CX-Programmer, or it can be
read or cleared using FINS commands from a workstation or computer. (See
11-3-7 ERROR LOG READ and 11-3-8 ERROR LOG CLEAR).
The following errors are recorded in the error log.
•
Errors in network operation
•
Errors in data transfers
•
Error in the CPU Unit
Each error is recorded as one record in an error log table. Up to 64 records can
be saved. If more than 64 errors occur, the oldest errors will be deleted from the
error log and the most recent error will be recorded.
The following information is recorded in the error log table.
Logged Errors
Error Log Table