Siemens 6ES7 322-1BL00-0AA0 Programmable Logic Controller Module

The Siemens SIMATIC S7-300 digital output module SM 322, part number 6ES7-322-1BL00-0AA0 (also listed as 6ES7322-1BL00-0AA0), delivers 32 independent 24 V DC outputs for direct switching in S7-300 systems. Each channel provides up to 0.5 A, with galvanic isolation between field wiring and the backplane, and the 32 outputs are arranged in four groups of eight, with a group current rating of 4 A and a total module rating of 16 A per assembly; the device connects to the control backplane via a 1 × 40-pin interface. This DO32 module is designed for use with SIMATIC S7-300 controllers and ET 200M remote I/O stations, enabling scalable, isolated 24 V DC load control for actuators and relay coils in industrial automation. Its combination of multi-channel density, 24 V DC signaling, and electrical isolation makes it suitable for applications requiring reliable, centralized control of multiple field devices in compact automation cabinets.