Hardware manual

Impact Reference Guide Discrete Output
3-191 Datalogic Automation Inc.
Dwell (in milliseconds or events) determines the length of time the output is on or off. These diagrams show
the output pattern based on the Output Timing Pattern setting.
How to set up the Discrete Output tool
1. Click the Setup tab, then click the Setup & Test radio button.
2. Set Delay & Pulse: This section is where you define any output delays and whether you want the
selected outputs to pulse (On to Off or Off to On).
Delay: If you define a delay, the tool waits the indicated number of events or milliseconds (the length
field) before switching the outputs to the state (On or Off) defined in the Set & Test Outputs section.
An event occurs when there is a voltage present on the Impact device’s Event Input. Refer to the
device’s hardware guide for details. Note that the delay begins with the task execution trigger event
(e.g. Image In Event or Offline Event). See “Delay and Dwell” on page 3-190 for more details.
Pulse: If you check this box, the selected outputs change to the chosen state for the indicated number
of events or milliseconds (the length field) then back to the other state. For example, if the Set Output
is On, and the pulse length is 10, the output is pulsed on for 10 milliseconds then be turned Off. If you
do not check this box, the selected outputs change to the chosen state when the tool runs and remain in
that state. See “Delay and Dwell” on page 3-190 for more details.
Delayed Pulse
Immediate Pulse
Delayed Set and Hold
Immediate Set and Hold