Replace Landis & Staefa Integral AS1000 (RSM) with a gateway from HMS

This replacement gateway from HMS Industrial Networks works as a substitute for the Integral AS1000 (RSM) controller from Landis & Staefa. It allows you to keep your existing ventilation devices and just install a new controlling PLC instead of replacing the entire system (you can use any type of PLC). The replacement gateway slots into the rack where the Integral AS1000 used to be.


  • No ventilation hardware or even IO modules need to be exchanged
  • No rewiring is required. 
  • Only the control system (PLC) needs to be replaced (which is also the case if the entire ventilation system is exchanged). 
  • Uses proven and trusted Anybus technology to enable the communication with any industrial network.

How it works

The replacement gateway distributes the IO control over Ethernet to a single control system run by any PLC. This control system can monitor and control several gateways, resulting in a much more cost-effective control system.

The gateway includes an Anybus CompactCom — a multi-network communication module supporting most fieldbus and Industrial Ethernet networks. This means that you can use any PLC to control your existing ventilation system.

The gateway has been tested for communication with Modbus-TCP communication, but Anybus CompactCom supports communication with several other networks.

Configuration and set-up is made in an easy-to-use web page included in the gateway.


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The physical installation couldn’t be easier. Simply remove the old Integral AS1000 from the metal housing...
....and insert the HMS gateway. Connect the front wiring to the same places and you’re done!