This guide explains how to trigger a sequenced output using a momentary input connected through GPIO.

Wire the momentary trigger device to the GPIO Card
(Follow the wiring reference for correct pin and ground connections.)

This allows the system to detect a brief button press or contact closure.

Add the following blocks to your project:

• Radio Button

• Delay Hold-1

• Delay Hold-2

• OR Module

• GPIO Output Card

• Route the Radio Button into both Delay Hold-1 and Delay Hold-2.

• Send both Delay outputs into the OR Module — the OR selects whichever Delay Hold is active.

• Connect the output of the OR Module to the GPIO Output block.

Open the GPIO Output Card and assign the correct GPIO channel used by the sequencer or controlled device.

• Press the radio button → momentary input triggers the sequencer

• The GPIO Output will follow whichever path is active:

  • Delay Hold-1 logic

  • Delay Hold-2 logic

This confirms the sequencer is functioning and responding correctly to momentary triggers.