Siemens SIMATIC PLC 6AG1326-1RF01-4AB0 SIPLUS S7-300 SM326F DI8 NAMUR   FOR MEDIAL STRESS WITH   CONFORMAL COATING BASED ON   6ES7326-1RF01-0AB0 . DIGITAL   INPUT SM 326, 8 DI; DC 24V,   NAMUR, FAILSAFE NAMUR INPUTS   FOR SIMATIC S7 F SYSTEMS, UP TO   CATEGORY 4 (EN954-1)/ SIL3   (IEC61508)/PLE (ISO13849), 1 X   40 PIN 6AG13261RF014AB0