Errors That May Occur In Remote I/O Communications - Omron CJ1W-DRM21 Operation Manual

4-7 Errors that May Occur in Remote I/O
Communications
The following errors may occur during remote I/O communications.
Condition Error
Error *_Mstr1StruE
occurs in rr (Structure
fixed allo- Error) is
cations TRUE
with the
scan list
disabled
Error *_Mstr1VefyE
occurs in rr (Verifica-
either fixed tion Error) is
or user-set TRUE
alloca-
tions with
the scan
list
enabled
CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)
Details
Duplicate The same I/O word is allocated to
I/O area two or more slaves. (This occurs
whenever a slave that is allocated
multiple words has one of the
words allocated to the node
address of another Slave.)
I/O area A slave is allocated an area out-
range side the fixed allocations area.
exceeded (This occurs whenever slaves are
allocated multiple words and a
slave is allocated a word beyond
node address 63 in the fixed allo-
cations area.)
Unsup- The I/O size of a slave exceeds
ported 200 bytes (100 words). (This
Slave occurs if either the IN or the OUT
size exceeds 200 bytes.)
No slaves A Slave registered in the scan list
present is not present.
I/O size The I/O size registered in the scan
mis- list does not match the I/O size of
matched the slave.
Note I/O size is compared in 8-
point (1-byte) units. If I/O
size is registered at 8 points
for example, then an error
I/O size mismatch will not
occur with a Slave with just
one input point connected.
Incorrect The vendor registered in the scan
vendor list does not match the slave ven-
dor.
Incorrect The device type registered in the
device type scan list does not match the slave
device type.
Incorrect The product code registered in
product the scan list does not match the
code slave product code.
Incorrect The connection bus registered in
connection the scan list is set incorrectly.
bus
Unsup- The slave does not support the
ported con- connection registered in the scan
nection list.
4 Remote I/O Master Communications
Results
Reconnect with
the error slave
and continue
remote I/O com-
munications.
Indicators 7-seg-
ment
indica-
tor
MS: Not d0
related
NS:
Flashes
red
d1
d2
d5
d6
d6
d6
d6
d6
d6
4-33
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