SIMATIC S7-300, DIGITAL MODULE SM 323, OPTICALLY ISOLATED, 16 DI AND 16 DO, 24V DC, 0.5A, AGGREGATE CURRENT 4A, 1X40 PIN 6ES73231BL000AA0DIGITAL I/O MODULESIMATIC S7-300ISOLATED16 INPUTS16 OUTPUTS24 VDC0.5 ATOTAL CURRENT 4 A1 X 40 POLE
