CLS200 Series User’s Guide
Chapter 4: Setup
94
Digital Inputs
View the logic state of the eight digital inputs as
H
(high) meaning the input is not pulled low, or
L
(low) meaning the input is connected to the controller common.
This screen shows the state of inputs 1 to 8 from left to right. See
Figure 4.5
. Since inputs are pulled
high when they are not connected, test an input by shorting it to controller common and making sure
this screen shows the correct state for that input.
ALARM
DIGITAL INPUTS
HHHHHHHH
Input
1
Input
8
Figure 4.5
— Digital Inputs Screen
When you are done testing digital inputs, press
YES
or
NO
to advance to the next screen, or press
BACK to return to the
MANUAL I/O TEST
menu.
Test Digital Output
Select one of the digital alarm outputs to test. You will test the output on the next screen.
You cannot force the state of an output enabled for control.
ALARM
TEST DIGITAL
OUTPUT? 1:IN USE
Selectable values:
Any output from
1
to
34
that is not enabled for closed-loop control or for the
Serial DAC clock and
GA
, the global alarm output.
Digital Output Number
This screen appears only if you selected an output that is not in use for control at the
TEST
DIGITAL OUTPUT
screen.
Use this parameter to manually toggle a digital output on or off to test it. Toggling an output
ON
sinks
current from the output to the controller common. Toggling the output
OFF
stops current flow. All
tested outputs are set to
OFF
when you exit the
MANUAL I/O TEST
menu.
You cannot toggle outputs enabled for control. To test a control loop output, first disable it using the
SETUP LOOP OUTPUTS
menu.
ALARM
DIGITAL OUTPUT
NUMBER XX ? OFF
Selectable values:
ON
or
OFF
.
