Omron ns series Operation Manual page 95

Message
Time-our error by the following
cases: Corrupted data by noise.
Transmit error by the host.
MRES=XX, SRES=XX
Monitoring address is incorrect.
It deletes all subscription of the
I/O monitor.
Selected address type is read
only. Check and re-enter the
address.
Alloc.Host: XXXX
Alloc.Addr.: XXXX
MRES=XX, SRES=XX
Time-out error by the following
cases:
Disconnection of the cable.
Stopped host.
MRES=XX, SRES=XX
Do you return it to the operation
screen?
Other peripheral tool is
accessing. Send commands
after success is permitted.
Alloc.Host: XXXX
Alloc.Addr.: XXXX
MRES=XX, SRES=XX
Cannot clear error.
MRES=XX, SRES=XX
Cannot connect to this PLC
model.
Model code=XX
It returns it to the operation
screen.
4-1-2 FINS Command and System File Error Messages
Probable cause
Data corrupted by noise, FINS
command receiving error
occurred.
An attempt was made to read or
search a program section while
UM read protection was set at the
host.
Monitoring address is incorrect.
Invalid I/O address of the
connecting PLC exists in the
ladder program section or I/O
monitor.
Address changed the present
value cannot be written.
A value such as an address was
changed for a host with FINS write
protection via the network
enabled.
Disconnection of the
communications cable of
CS-series communications
service stopped (e.g., because
power was turned OFF), causing
FINS command reception time-out
error.
Communications configuration,
such as PLC:PT= 1:N (8 max.)
high traffic is set on the
communications line.
Cannot finish the search because
of conditions (program contains
100 Ksteps or more) that require
time to search instructions.
When connected to the PLC using
a 1:N NT Link, the Maximum Unit
No. in NT Link/Serial PLC Link
Mode is set to 0 in the PLC Setup
at the PLC.
Other Support Software (e.g.,
CX-Programmer) is accessing the
same PLC.
The cause of the error is not
cleared when canceling the error.
Clear All Err can only be executed
when the PLC is in PROGRAM
mode but another mode is not set.
Unsupported PLC is connected.
4-1 Troubleshooting
Countermeasure
Perform one of the following operations.
• Press the Operat Screen Button to exit
the Ladder Monitor.
• Press the Continue Button to reset
communications.
When reading a program section from the
Ladder Program, use the CX-Programmer to
clear the UM read protection at the host.
Press the OK Button to add the address for
multiple I/O monitoring.
Press the OK Button to end the process.
If writing from the Ladder Monitor is permitted,
execute Nodes Excluded from Write
Protection in the CX-Programmer's PLC
Setup. When connecting with a 1:N NT Link,
set the PT's NT Link unit number + 1 as the
node address.
Check the communications cable and perform
one of the following operations.
1. Press the Operat Screen Button to exit the
Ladder Monitor.
2. Press the Continue Button to reset
communications.
Change the number for retry counts in the
system menu of the PT. (Default is 5 times.)
Increase the communications timeout monitor
time for searches in the Search Timeout
Watch Time Setting.
Set the Maximum Unit No. in NT Link/Serial
PLC Link Mode to 1 or higher.
Press the OK Button to end the process.
Perform the same process, again after
completing access from other Support
Software.
Press the OK Button to close the dialog box.
Then, clear the errors, again. Change the PLC
to PROGRAM mode before clearing all errors.
Check the connected PLC and restart the
Ladder Monitor. SYSMAC CS/CJ-series PLCs
can be connected.
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