Siemens 6ES7322-1BH01-0AA0 is a SIMATIC S7-300 digital output module (SM 322) that provides 16 DC 24 V outputs with galvanic isolation from the backplane. Each output can switch up to 0.5 A, with a group total of 4 A and 8 A maximum per module, suitable for driving solenoids, relay coils, and other 24 V DC actuators in a Siemens S7-300 system. The unit uses a 1×20-pole backplane interface and is designed for discrete control tasks within the S7-300 architecture.
