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Analog input SM 331, isolated, 4 AE; 0/4 to 20 mA, 1 x 20-pole, for signals from the hazardous area, diagnostics-capable, PTB tested
ANALOG OUTPUT SM 332, 8 AO
ANALOG OUTPUT SM 332, 2 AO
DIGITAL INPUT SM 321, 8DI, AC 120V/230V
DIGITAL INPUT SM 321, 16 DI, 120/230V AC
DIGITAL INPUT SM 321, 4 DI, 24V DC