Siemens SIMATIC S7-300 SM 322 digital output module (6ES7322-1BH01-0AA0) provides 16 isolated DC 24 V outputs, each capable of 0.5 A, enabling direct control of actuators such as solenoids and contactors from a central PLC. The module uses a 1x 20-pole front connector and is designed for mounting in the S7-300 backplane, delivering galvanic isolation between the CPU and field devices. This 16-channel SM 322 variant supports 24 V DC signaling and is typically used to switch multiple discrete loads within automation panels and distributed control systems.
