MLC 104 IP Plus Series • Special Applications
124
a.
In the
IP Link
tree view panel on the left side of the window, click on the MLC
that you are configuring. The right side of the window changes to show the front
panel of the MLC and more tabs. By default, the
Front Panel
tab is selected.
b.
Within the
Front Panel
panel, click an input button.
c.
Select the desired MPS switcher input number from the
Switcher Input
list
box.
d.
Repeat steps 6b and 6c
as desired to remap additional buttons to other switcher
inputs.
7.
Complete the rest of the configuration as desired.
8.
Save the project.
9.
Build and upload the configuration to the MLC.
Using Digital Inputs
The MLC can monitor devices such as push buttons, switches, a motion sensor, moisture
sensor, tally feedback output, or a similar item via a digital input port. When one of these
ports is configured as a digital input, it is set to measure two states: high and low. The port
accepts 0 to 12 VDC input. The threshold voltages are as follows: a voltage below 2.0 VDC
is measured as logic low, and a voltage above 2.8 VDC is measured as logic high. There
is also an internal, 2k ohm, +5 VDC, selectable, pull-up resistor for this circuit for contact
closure detection. The following example tells how you can use these pins for digital input.
Using Digital Input For an Alert Notification System
One way to use digital inputs on the MLC is as part of an alert system. Digital inputs can be
connected to a simple momentary contact closure switch with buttons. Then the MLC is
configured so that a button press can trigger an alert e-mail to a help desk, security office,
or administrative office.
NOTE:
This feature can be used as an alert notification and should not be used as a life
safety feature, as it operates over a local network and offers no redundant means of
communication if the network goes down.
Summary of Contents for MLC 104 IP Plus Series
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