Omron CJ1W-DRM21, Operation Manual

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3-31
3 Data Exchange with the CPU Unit
CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)
3-2
De
vice V
a
riab
les
f
o
r CJ-series
Unit (Software
S
w
itc
h
es, Statuses)
3
3-2-6 U
n
it Statu
s
2
*_IOCommSta BOOL R Remote I/O
Communi-
cations Sta-
tus <Operation specifications>
TRUE:
Indicates that remote I/O communications
are being performed for the master func-
tion.
Note This variable only indicates the start
of remote I/O communications, and
does not indicate whether data was
actually exchanged with slaves.
Actual data exchange between one
or more slaves is monitored from
*_Mstr1IOCommSta_DRM (I/O Data
Communications Status). Therefore
use the I/O Data Communications
Status rather than this bit as the
input condition in I/O processing for
slaves from the program.
FALSE:
Indicates remote I/O communications
stopped.
Normally, the Unit will perform remote I/O
communications automatically.
Note This bit only indicates the start of
remote I/O communications, and
does not indicate whether data was
actually exchanged with slaves.
Actual data exchange between one
or more slaves is monitored from
*_Mstr1IOCommSta (I/O Data Com-
munications Status). Therefore use
the I/O Data Communications Status
rather than this bit as the input con-
dition in I/O processing for slaves
from the program.
Default: FALSE
*_MstrEnblSta BOOL R Master
Function
Enabled
Status <Operation specifications>
TRUE:
Indicates that master communications are
enabled (Unit is operating as a master).
FALSE:
Indicates that master communications are
disabled.
Default: FALSE
*_SListDsblSta BOOL R Scan List
Disabled
Status <Operation specifications>
TRUE:
Indicates that the Unit is operating with the
scan list disabled.
FALSE:
Indicates that the Unit is operating with the
scan list enabled.
Default: FALSE
Name of device variable for
CJ-series Unit
Type R/W Area Function