Omron NV Series Setup Manual page 148

Error Codes and Countermeasures
128
Code number Description
ER13 FCS error
ER14 Format error
ER15 Numeric data error
ER18 Maximum frame length error The data exceeded the frame length
ER21 CPU error in CPU Unit, exe-
cution not possible (Occurs
only when communicating
with Serial Communica-
tions Board/Unit.)
ERA3 Aborted, FCS error in send
data during processing
ERA4 Aborted, format error in
send data during process-
ing
ERA5 Aborted, numeric data error
in send data during pro-
cessing
ERA8 Aborted, maximum frame
length error in send data
during processing
Other error The model of the PLC is
codes wrong.
*1 When connected to a C-series or CVM1/CV-series PLC, keep the operat-
ing mode of the CPU Unit set to MONITOR mode. If a C-series or CVM1/
CV-series CPU Unit is in RUN mode, and error code of "ER01" will be dis-
played when attempting to write from the PT to the PLC and writing will not
be possible.
Section 7-5
Countermeasure
The FCS value does not match the
checksum in the command (possibly
caused by noise). If this error recurs
frequently, check for noise on the
communications path.
The data does not match the expected
command format (possibly caused by
noise). If this error recurs frequently,
check for noise on the communica-
tions path.
Specifications for read/write areas are
incorrect. Make sure that the commu-
nications addresses set for system
memory and parts are in read/write
areas.
(possibly caused by noise). If this
error recurs frequently, check for noise
on the communications path.
Cycle the power supply to the CPU
Unit.
The FCS value does not match the
checksum in the command in a frame
other than the first frame (possibly
caused by noise). If this error recurs
frequently, check for noise on the
communications path.
The data does not match the expected
frame format (possibly caused by
noise). If this error recurs frequently,
check for noise on the communica-
tions path.
The range of PLC address assigned in
the screen project are incorrect.
Check the manuals for your PLC and
specify an address within the sup-
ported range.
The data exceeded the frame length
in a frame other than the first frame
(possibly caused by noise). If this
error recurs frequently, check for noise
on the communications path.
A PLC from a manufacturer other than
OMRON may have been connected.
This may cause error codes for irregu-
lar contents that depend on the com-
munications contents of the specific
PLC manufacturer to be displayed.
Check to see if the communications
driver in the PT is the correct one for
the connected PLC.