PtXX - Input Output, Timestamp - Input view parameters

Input Filters
Parameter
Description
Member Name
Value
Off → On filter time
Specifies a value by which to delay the transition from Off to On. This delay is useful for filtering out transients in noisy environments.
C.Ptxx.DI.InputOffOnFilter
  • 0 µs (default)
  • 5 µs
  • 10 µs
  • 20 µs
  • 50 µs
  • 100 µs
  • 200 µs
  • 500 µs
  • 1 ms
  • 2 ms
  • 5 ms
  • 10 ms
  • 20 ms
  • 50 ms
On → Off filter time
Specifies a value by which to delay the transition from On to Off. This delay is useful for filtering out transients in noisy environments.
C.Ptxx.DI.InputOnOffFilter
  • 0 µs (default)
  • 5 µs
  • 10 µs
  • 20 µs
  • 50 µs
  • 100 µs
  • 200 µs
  • 500 µs
  • 1 ms
  • 2 ms
  • 5 ms
  • 10 ms
  • 20 ms
  • 50 ms
Timestamping
Parameter
Description
Member Name
Value
Enable timestamp latching
Determines whether timestamps are latched.
  • When enabled, the device timestamps will not be overwritten until acknowledged.
  • When disabled, the device timestamps may be overwritten.
C.Ptxx.DI.TimestampLatchEn
0 = Do not latch (default)
1 = Latch
Capture timestamp for
Off → On input transition
Determines whether to capture a timestamp when the input transitions from Off to On.
C.Ptxx.DI.CaptureOffOnEn
0 = Do not capture (default)
1 = Capture
Capture timestamp for
On → Off input transition
Determines whether to capture a timestamp when the input transitions from On to Off.
C.Ptxx.DI.CaptureOnOffEn
0 = Do not capture (default)
1 = Capture
Chatter Detection
Parameter
Description
Member Name
Value
Enable chatter detection
Sets chatter detection. When enabled, chatter from a device connected to one of its inputs (for example, rapid transitions from a failed contact) is ignored.
Chatter can cause the device to timestamp invalid input transitions. Typically, chattering signals cause inputs to transition falsely many times in a relatively short period of time.
C.Ptxx.DI.ChatterCount
0 = Disabled (default)
2...127 = Enabled
Chatter count
Determines the number of acceptable input transitions that can occur in a given time period before considering the input to be chatter.
C.Ptxx.DI.ChatterCount
2...127
Default value is 2.
Chatter time
Determines the amount of time, from 1 through 10000 milliseconds, within which the number of input transitions are counted.
C.Ptxx.DI.ChatterTime
1...10000 ms
Default value is 1000 ms.
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