Omron CJ1W-CT021 Operation Manuals page 115

Reflecting Active/Not Active Comparison Values
A comparison condition is met when the Counter Value is equal to or larger than the comparison
value. The comparison value active/inactive established status is reflected in the following device
variable for CJ-series Unit (for input) for each Counter.
Name of device variable
for CJ-series Unit
*_Ch1_RngCmpDatSta
*_Ch2_RngCmpDatSta
*_Ch1_RngCmpSta0 to
*_Ch1_RngCmpSta31
*_Ch2_RngCmpSta0 to
*_Ch2_RngCmpSta31
Additional Information
The Ranges/Comparison Active bit indicates whether the current Counter Value is larger than
the CV or not. Therefore, if a Counter Value is preset larger than a CV, the bit changes to ON
without crossing the CV. If the Counter Value crosses the CV in the reverse (CCW) direction, the
bit does not change to ON.
Enable/Disable Comparison Values
Every single comparison condition can be enabled or disabled. If comparison conditions are dis-
abled (by default), no action will be taken even if the Counter Value reaches the CV. If comparison
conditions are enabled, depending on the counting direction, the set or reset pattern is applied to the
unit output pattern when the CV is reached. To enable or disable Counter comparison conditions,
refer to the following device variables for CJ-series Unit (for setting):
Name of device variable
for CJ-series Unit
*_Ch1_RngCmpEnblCfg
*_Ch2_RngCmpEnblCfg
CJ-series High-speed Counter Units Operation Manual for NJ-series CPU Unit(W492)
Type Name
DWORD Ranges / Comparison
Values active
BOOL Ranges 0 to 31 / Com-
parison Values 0 to 31
active
Type Name
DWORD Range/Comparison
Enable Data
3 Operation and Configuration
Function
The current status of the comparison condi-
tions is shown.
Bits 00 to 31 correspond to comparison con-
ditions 0 to 31.
Each bit shows 1 when the conditions are
met and 0 when they are not.
The numbers after "Sta" correspond to com-
parison conditions 0 to 31.
0: Range conditions not met
1: Range conditions met
Function
Sets whether the range and comparison
data is enabled or disabled.
Bits 00 to 31 correspond to comparison data
0 to 31.
0: Comparison data disabled
1: Comparison data enabled
3
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