35
QuantumX Data Recorder CX22‐W
A3169-1.0 en/de
HBM
10
Other CX22‐W connections
10.1 Digital inputs and outputs
Three inputs at terminals 1, 2 and 3 and 3 outputs at terminals 4, 5 and 6 are
available. The status of the outputs is indicated by LEDs, see Section 10.3.3.
The level for the inputs is 5Volt in open condition (HIGH), as it is pulled up to
HIGH via a Pull‐up resistance (active LOW). The maximum LOW level for the
inputs is 0.7Volt. The level for the outputs is 5Volt (HIGH), when the corres
ponding output is set, otherwise 0Volt (LOW). The inputs and outputs are
TTL‐compatible, the line lengths at the outputs must not exceed 3m.
Important
The START/STOP button is switched parallel to the input on terminal 3. If you
want to use the button, do not connect input 3. Otherwise the condition “Act
ive” (LOW) will be triggered by pressing the button and by a LOW signal at
terminal 3.
Tip
At the start of a DAQ job, outputs are reset to LOW if you activate the setting
Reset all CX22 digital outputs on DAQ start
in the Options for the CX22
(group
System
) in catman
®
AP.
10.2 START/STOP button
You can start and/or stop a DAQ job with the START/STOP button. To do this
use a trigger for the start and/or stop of the DAQ job and assign
CX22 Digital
input 3 - Start/Stop push button
as the trigger channel. If you control the
start and stop of the DAQ job via the button, the DAQ job is started with the
first press and stopped with the next press of the button.
Important
The START/STOP button is switched parallel to the input on terminal 3. If you
want to use the button, do not connect input 3. Otherwise the condition “Act
ive” (LOW) will be triggered by pressing the button and by a LOW signal at
terminal 3.
