Siemens 6ES7322-1HH01-0AA0 Digital Output Module

Siemens 6ES7322-1HH01-0AA0 SM 322 digital output module is designed for SIMATIC S7-300 PLC systems, delivering 16 digital outputs to drive field devices in industrial panels and machine automation. Each channel outputs 24 V DC, PNP (sourcing) up to 0.5 A with galvanic isolation between groups, a maximum of 4 A per group, and a rapid response time of about 0.1 ms, suitable for relays, solenoids, and actuators and for resistive or inductive loads. The module draws roughly 100 mA from the backplane and dissipates about 6 W, with DIN-rail mounting in the S7-300 rack system; dimensions are approximately 125 × 40 × 120 mm and weight around 0.25 kg. Common applications include production machinery, conveyors, and process control where reliable digital output expansion is required.