When it was time to exchange an old panel that controlled a hydrogen compressor an automation technician decided to go with a backplane.
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The panel controlling a hydrogen compressor, which delivers hydrogen with high pressure to an R&D site, needed to be exchanged. Inside the backplane, three different types of barriers were installed. Nine pulse isolators for reporting from valves and switches, four repeaters for signals from flow and pressure transmitters and one alarm driver.
One particularly positive surprise was the flexibility that came with the barriers. The possibility to exchange the installation from an active to a passive PLC/DCS is unique. With other barriers that would mean exchanging the barrier completely.