Here’s what more than 2,500 business decision-makers around the world say.Download the report
...with the Facility Hero app in hand! Discover how you can optimize your maintenance efforts today.Learn more
Access tailored services, 24/7 self-service and expert help. Anywhere, anytime, any project.Discover now
Everything you need to know about our IoT technology backbone.Learn more
Explore our global offerings or select your country from one of our five regions.Global
Découvrez nos offres globales ou sélectionnez votre pays dans l’une de nos cinq régions.
The Red RD LED means that the sensed network I/O and the configuration does not match. You must have all the I/O-bus network I/O cards mapped correctly and installed for the remote bus to run. Before the CPU starts the remote bus it will compare the I/O map to what is physically connected. If there is a difference the I/O will be disabled and the Red RD LED illuminated on all of the I/O-bus modules. This will also occur if any of the cables are broken, disconnected, or if a base fails. This also means that you cannot preconfigure I/O in the I/O map for future expansion or have any I/O bases on the bus that are not mapped.