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Subject: | RE: Who uses WAGO or Beckhoff PLCs for Equipment Protection Systems? |
From: | Bryce Karnaghan <[email protected]> |
To: | "[email protected]" <[email protected]> |
Date: | Wed, 3 Sep 2014 23:24:32 +0000 |
Jens We are starting to develop a Beckhoff system for fast interlock of the storage ring RF from our Medical Imaging Beamline. We are currently building a distributed system via EtherCat on fibre are using:- TwinCAT3 Engineering environment CX9020 Imbedded PC EL6900 TwinSAFE PLC EL1904 4-channel digital input terminal, TwinSAFE, 24 V DC EL2904 4-channel digital output terminal, TwinSAFE, 24 V DC The rationale behind this decision is that we are looking for an end to end reaction time less than 2 mS and found that this is not really possible using our installed base of Pilz safety systems. So far the
2 mS is proving a little challenging using the safety based PLC and I/O (we are around 8-12 mS) so we have some work to do with Beckhoff Australia.
Cheers
From: [email protected] [mailto:[email protected]]
On Behalf Of Rekow Jens Dear All, Is there anybody out there using PLC hardware from WAGO or Beckhoff to implement equipment protection systems (EPS) for machine protection or beamlines? I know that WAGO or Beckhoff devices are commonly used in many facilities but I am not sure about their usage for EPS applications. We think of doing this but it would be nice to hear about other opinions/experiences.
We have been very happy with these devices not least because of the convenient EPICS interface using Modbus TCP. Any comments are much appreciated. Thanks in advance, Jens |