11.. . APPENDIX A: MASTER ICON REFERENCE
EVENT INPUT ICON (GPDI)
FUNCTION:
The GPDI (General Purpose Digital Input) is a hardware digital input for Event and Counter applications. It is incorporated into every
As an EVENT input, it samples the input signal state (High or Low) per the sampling rate set on the Update input. It updates its output only when the input changes state.
INPUTS:
Hardware: No signal input shown on Net for Program Net connections.
Update: The input is sampled every time an Update command is received on the Update input. If the input state has changed since the last Update command was received, the Output is updated with the new state. The absolute time resolution of the state change is determined by the frequency of the Update signal. For example, if an Update command is received every second, the state change will be recorded with one second resolution.
Enable: Processing of the icon is allowed when Enable pin is unconnected or connected and the Enable signal is TRUE.
OUTPUTS:
Output Signal: | Logic type signal |
ICON CONFIGURATION DIALOG BOX:
CONFIGURATION OPTIONS:
Icon Name: Specify the name for the channel. This name will show directly under the icon within the Program Net. If no name is User provided, the Backplane Port (1 to 6) and Channel (A to D) where the actual Interface Module channel is installed will be used for the name.
Output Name: Specify a name for the Output signal from this icon. This Output Name will be referenced by other icons downstream in the Program Net.
Event / Counter Select EVENT for the Event function.
Debounce: Enables a hardware filter circuit that prevents short duration transitions from passing into the icon. Debounce can be used to filter out contact bounce from mechanical switches. The GPDI Debounce has a time
USING THE |
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