Simatic S7, Module of analog inputs SM 331, 4 inputs, 0/4-20 MA, for EX zone signals, build in diagnostic functions, optical isolation, needed connection 20 PIN...
Simatic S7, Module of analog inputs SM 331, 8 inputs measurement thermocouple/4 inputs PT100, for EX zone signals, build in diagnostic functions, optical isolation, needed connection 20 PIN...
Simatic S7, Module of analog inputs SM 336 for FAIL-SAFE systems, 6 inputs 15 bits; HART protocol serviced, connection terminal strip 20 PIN needed...
Simatic S7-300, module of binary inputs SM 326 for fail-safe systems, 6 inputs dc 24V failsafe with diagnostics on wire interruption, front connector is necessary 20 pin...
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