SIMATIC S7, analog input SM 331, isolated, 8 AI thermocouples/4 AI Pt100, for signals from the hazardous area, diagnostics-capable, PTB tested 1 x 20-pole
KEY-PLUG W780, replaceable medium for activating iFeatures for Scalance W in access point mode allows simple device exchange in case of failure and recording configuration data respectively project and application data, for all Scalance W with plug slot