Discrete Input Interface
Trigger messages on any Alpha display simply and economically!
The Alpha Discrete Input Interface accepts inputs from photoelectric
cells, limit switches, proximity sensors, PLC I/O blocks, relays, push
buttons, contact closures or any discrete, BCD, binary, or up/down counting
device or sensor.
Alpha LED Signs with standard Alpha firmware will
store and display up to 80 messages and up to 90 variables. The messages
are created and stored using the Alpha infrared keyboard or using
software, such as the Alpha File Loader program or the Alpha
Messaging software program.
The Alpha Discrete Input Interface is programmed to trigger
specific messages when the corresponding input on the Alpha Discrete
Input Interface is closed.
The Alpha Discrete Input Interface connects to as many as 32
contacts in blocks of 8 inputs. The interface mounts on a standard 35mm
DIN rail and is easily connected to power, contacts and RS485 serial
communications to the Alpha marquees.
connectivity to switches, contacts, photo eyes, proximity sensors,
relays, PLC I/O blocks, etc.
for discrete, binary (parallel) and up/down counting and BCD standard
options, field adjustable.
with 24 VDC sink or source capabilities.
message creation in the display corresponding to the appropriate contacts
via the handheld remote or the Alpha Messaging Software.
interfacing to Alpha displays via a RS485 network.
devices in factories.
of equipment in water treatment facilities.