Connections and displays
CX22B / CX22B-W
A3169-8.0
HBM: public
21
4.8
Digital inputs and outputs
Three inputs are available at terminals 1, 2 and 3 and
three outputs at terminals 4, 5 and 6. The status of the
outputs is indicated by LEDs,
Inputs
The level for the inputs is 5 volts in the open state
(HIGH), as it is pulled up to HIGH by a pull-up resistor
(active LOW). The maximum LOW level for the inputs is
0.7 volts.
Outputs
The level for the outputs is 5 volts (HIGH), when the cor
responding output is set, otherwise 0 volts (LOW). The
inputs and outputs are TTL-compatible, the line lengths
at the outputs must not exceed 3 m.
Tip
At the start of a DAQ job, outputs are reset to LOW if in
catman
[
EASY, in the options for the CX22B‒W (
system
group), you activate the setting
Reset all CX22B‒W
digital outputs at the start of a DAQ job
.
4.9
START/STOP button
You can start and/or stop a DAQ job with the START/
STOP button. To do this, use a trigger for starting and/or
stopping the DAQ job and assign
CX22B‒W digital in
put 3 - START/STOP button
as the trigger channel.