Industrial Message Displays are similar to what you see in many store windows .
But these text displays are designed to be mounted in an industrial environment.
Typically they are connected to a Programmable Controller by way of an industrial network, however some models are hard wired directly to PLC I/O.
DataLiner:
Allen-Bradley's first line...
UPDATE 10/31/2017: Try as I might, I can no longer find the software packages listed in this article anywhere online (the associated sites have been completely redesigned.)
UPDATE 08/22/22: While I don't have permission to post the below software publicly, I have made the old SLC-100/150 software download available to...