Siemens 6ES7322-1BH01-0AA0 Digital Output Module

Siemens 6ES7322-1BH01-0AA0 is a SIMATIC S7-300 digital output module (SM 322) that provides 16 isolated DC 24 V outputs for energizing loads such as relays and solenoids in automation panels. Each of the 16 channels is rated for 0.5 A at 24 V DC, with galvanic isolation between outputs to protect the CPU and other I/O modules. The backplane interface uses a 1×20-pole connector, and the card is designed to mount in an S7-300 rack alongside the CPU and other modules. Maximum current specifications are 4 A per group and 8 A per module, enabling reliable control of multiple actuators on a single card. The 6ES7322-1BH01-0AA0 designation identifies this 16-channel DO module in the S7-300 family, configured for DC 24 V operation. Typical applications include machine automation, packaging lines, material handling, and process control where discrete 24 V outputs drive relays, contactors, or signal lamps. This part is a standard digital output card and should be paired with a compatible Siemens PLC controller and power infrastructure to form a complete control system.