Siemens 6ES7322-1BH01-0AA0SIMATIC S7 300, Digital output SM 322, isolated, 16 DO, 24 V DC, 0. 5A, 1x 20 pole, Total current 4 A group (8 A module) What type of I O module is this? This is a digital output module for Siemens S7 300 PLC systems. How many outputs does this module provide? It provides 16 digital output channels for controlling field devices. What voltage level do the outputs operate at? The outputs are designed for 24 VDC applications. Does this module require an