SIMATIC S7-400, analog input SM 431, isolated 8 AI, resolution 14 bit, U/I/Resistor/Thermocouple/Pt100
SIMATIC S7-400, analog input SM 431, isolated 16 AI; resolution 16 bit, U/I/Resistor/Thermocouple/Pt100 , alarm, diagnostics
SIMATIC S7-400, Function module FM 450-1 for counter function with 2 channels, incl. configuration package on CD
SIMATIC S7-400, function module FM 450-1 for counter function with 2 channels incl. configuration package on CD
SIMATIC S7-400, interface module Send IM 460-0 for central coupling without PS transfer, with C-bus
SIMATIC S7-400, interface module receiver IM 461-0 for central coupling without for PS transfer, with C-bus
SIMATIC S7-400, interface module receiver IM 461-1 for central coupling with PS transfer, without C bus,
SIMATIC S7-400, Backup battery 3.6 V/2.3 AH for PS 405 4 A/10 A/20 A and PS 407 4 A/10 A/20 A