Rockwell Automation 1756-LSC8XIB8I ControlLogix Low-speed Counter Module User Manual
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Rockwell Automation Publication 1756-UM536A-EN-P - April 2012
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Tag Definitions
Appendix B
Table 5 - Counter Module Configuration Tags
Name
Data Type
Definition
PtFilterOffOn
INT
Filter Time Off to On—(Inputs 0…7 only). Defines how long an Off to On input transition must remain in the On state
before the module recognizes the transition.
Valid filter time = 0…30,000 μs
Default = 0
PtFilterOnOff
INT
Filter Time On to Off—(Inputs 0…7 only). Defines how long an On to Off input transition must remain in the Off state
before the module recognizes the transition.
Valid filter time = 0…30,000 μs
Default = 0
PtXFilterEn [X = 0…7]
BOOL
Filter—(Inputs 0…7 only). Indicates whether filtering is enabled for the standard hardware inputs. When filtering is
enabled, transitions at the input point must remain in the new state for a configured length of time before the module
recognizes the transition. The filter time is defined in the PtFilterOffOn and PtFilterOnOff tags.
0 = Disable (default)
1 = Enable
CounterFilterOffOn
INT
Filter Time Off to On—(Counters 0…7 only). Defines how long an Off to On transition at a counter must remain in the On
state before the module counts that transition. Requires that the Counter[x].FilterEn configuration tag enables filtering on a
per counter basis.
Valid filter time = 0…30,000 μs
Default = 0
CounterFilterOnOff
INT
Filter Time On to Off—(Counters 0…7 only). Defines how long an On to Off transition at a counter must remain in the Off
state before the module counts that transition. Requires that the Counter[x].FilterEn configuration tag enables filtering on a
per counter basis.
Valid filter time = 0…30,000 μs
Default = 0
Counter[x].Window0UsesFreq
BOOL
Window 0 Uses Frequency—Indicates whether window 0 evaluates incoming pulses in terms of frequency rather than
accumulated count.
0 = The window evaluates incoming pulses in terms of accumulated count (default).
1 = The window evaluates incoming pulses in terms of frequency.
Counter[x].Window0FreqAverage
BOOL
Window 0 Uses Average Frequency—If window 0 is set to operate in terms of frequency via the Window0UsesFreq tag,
this tag determines whether to use instantaneous frequency or average frequency.
0 = The window uses instantaneous frequency (default).
1 = The window uses average frequency.
Counter[x].Window1UsesFreq
BOOL
Window 1 Uses Frequency—Indicates whether window 1 evaluates incoming pulses in terms of frequency rather than
accumulated count.
0 = The window evaluates incoming pulses in terms of accumulated count (default).
1 = The window evaluates incoming pulses in terms of frequency.
Counter[x].Window1FreqAverage
BOOL
Window 1 Uses Average Frequency—If window 1 is set to operate in terms of frequency via the Window1UsesFreq tag,
this tag determines whether to use instantaneous frequency or average frequency.
0 = The window uses instantaneous frequency (default).
1 = The window uses average frequency.
Counter[x].InvertUpDown
BOOL
Invert Up/Down Function—When set, inverts the hardware input defined in the Counter[x].UpDownTieToPt tag, so that
Counter[x] counts up when the input is high and counts down when the input is low.
0 = Not inverted. Counter[x] counts up when the input is low and down when the input is high (default).
1 = Inverted. Counter[x] counts up when the input is high and down when the input is low.
Counter[x].InvertCountEn
BOOL
Invert Count Enable Function—When set, inverts the hardware input defined in the Counter[x].CountEnTieToPt tag, so
that Counter[x] counts only when the input is low.
0 = Not inverted. Counter[x] counts when the input is high (default).
1 = Inverted. Counter[x] counts when the input is low.
Counter[x].InvertReset
BOOL
Invert Reset Count Function—When set, inverts the hardware input defined in the Counter[x].ResetTieToPt tag, so that
Counter[x] resets only when the input transitions low.
0 = Not inverted. Counter[x] resets when the input transitions high (default).
1 = Inverted. Counter[x] resets when the input transitions low.