6ES7421-1BL01-0AA0 SIEMENS ⍾ 6ES74211BL010AA0

SIMATIC S7-400, SM 421 DIGITAL INPUT MODULE, FLOATING, 32 DI, 120V DC/AC

SIMATIC S7-400, digital input SM 421, isolated 16 DI; UC 120/230V Inputs according to IEC1131-2 Type 2

SIMATIC S7-400, digital input SM 421, isolated 16 DI; 24 V DC with 0.05 ms input delay alarm, diagnostics

SIMATIC S7-400, digital input SM 421, isolated 16 DI; UC 24 - 60 V, alarm, diagnostics

SIMATIC S7-400, digital output SM 422, isolated 16 DO; 24 V DC, 2 A

SIMATIC S7-400, digital output SM 422, isolated 32 DO; 24 V DC, 0.5 A

SIMATIC S7-400, digital output SM 422, isolated 16 DO; 120/230 V AC, 2 A

SIMATIC S7-400, digital output SM 422, isolated 16 DO; 5..230 V AC, 5 A relay

SIMATIC S7-400, digital output SM 422, isolated 32 DO; 24 V DC, 0.5 A with 0.15 ms output delay, diagnostics

SIMATIC S7-400, analog input SM 431, non-isolated 16 AI, resolution 13 bit, +/-10 V, +/-20 mA, 4 - 20 mA 20 ms conversion time

SIMATIC S7-400, analog input SM 431, isolated 8 AI, resolution 13 bit, U/IResistor

SIMATIC S7-400, analog input SM 431, isolated 8 AI, resolution 14 bit, U/I/Resistor/Thermocouple/Pt100