Rockwell Automation 1769-HSC Compact High Speed Counter Module - Manual (Page 16)

16 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013
Chapter 2 Module Operation
Module Operation Block
Diagrams To provide an overview of the module operation, the block diagrams indicate
relationships between module functions and configuration parameters.
Inputs
The following diagram illustrates how the inputs function.
Count
Min/Max and Linear/Ring
Overflow (ResetOvf)
(1)
Underflow (ResetUdf)
(1)
Pulse Interval
(2)
See page 32 to
determine how and when
to use to calculate rates.
Store
CtrnConfig.StorageMode_0
RisingEdgeZ (reset REZ)
(1)
ZInhibit
ZInvert
Enable
CtrnEn
CtrnConfig.StorageMode_1
InputStateZn ‘gating’
Direct Write
HiLimOrDirWr
LoadDirectWrite
ToThisCounter
Preset
CtrnSoftPreset
CtrnConfig.StorageMode_2 and Rising Edge Z
Automatic PresetWarning (Preset Warning)
(1)
Rate
(3)
Update Time
Scalar
Hysteresis
Rate Valid
Input
NumberOfCounters
Operational Mode
Decoded Discrete Input State
Filtering
Pulse
Direction
DirInvert
DirInhibit
Overflow
Underflow
Preset
Direct Write
(1) Resets.
(2) Does not apply to packaged
controller.
(3) Does not apply to
packaged controller.