Microscan QX Hawk User Manual page 230

I/O Parameters
Output State
Sets the active electrical state of the discrete output.
Pulse Width
Sets the time in 10 ms increments that the discrete output remains active.
Output Mode
Sets the condition in which the discrete output is de-activated.
Pulse
This is the default mode of operation in which the programmable output is activated when
the Output On condition has been met and held active for the duration of the selected
pulse width.
Latch Mode 1 (Unlatch Input # 1 Pin)
The programmable output is activated when the Output On condition has been met and
held active until the Input # 1 Pin.
Note: Input 1 must be set to Unlatch Output for Latch Mode 1 to function.
If the Output Condition is set to Read Cycle Data Valid, then the read cycle will wait for
Input 1 to unlatch the output before continuing on. This is to provide system handshake
ability despite communication channel. The read cycle data must leave all channels before
Read Cycle Data Valid will output.
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QX Hawk Industrial Imager User's Manual