It is possible to do this using computer software, we have had a solution working for about 3 years.

Only but is, it needs a programable keyboard to work, so a litle hardware is also needed

We dedicate 3 buttons:

1: Write an alert ini-file in a common share containing Type=Red
This file is named Workstation-name.ini and could look like this:
[Alert]
Type=Red
Time=10.08.37
2: Write an alert ini-file in a common share containing Type=Yellow
This file is named Workstation-name.ini and could look like this:
[Alert]
Type=Yellow
Time=10.08.37
3: Delete the file Workstation-name.ini (Call of the alarm)

This is 3 different aps (Could be KiX-scripts)


A listening application that checks the alert-share is startet automatically on all computers where alerts should be received and reacted to.
This have a config.ini of whitch alerts to react to (ie. show an alert-popup)

Example config.ini:
[ListenTo]
Computer1=1
Computer8=1
Computer12=1
ComputerXX=1

The listening app (could also be a KiX-script) will check every 5 secs. if there is any alerts to react to, a popup is shown on the ws's where the user has to react.


This is easy to configure and includes no extra wiring, but You have to have programable keyboards to make it work.


-Erik