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I need to find some operator panel (something like Siemens OP) suitable to work in Ex enviroment. We are using OPs from Siemens (OP27, OP37). These panels aren't intended to work in Ex enviroments and so we blow the air into the distribution board the OP is installed in it to reach certain small overpressure. We had tested TP27 too but without success. I need panel respecting the conditions mentioned above. The panel has to be able to communicate with Siemens PLC S7 (300 / 400 family) by MPI and/or Profibus DP.
Thanks in advance for any help you can offer.
Thanks in advance for any help you can offer.