
Description
SIEMENS SIPLUS S7-300 SM321 – 20-POLE -25 … +70 DGR C WITH CONFORMAL COATING CONFORMITY WITH EN50155 T1 KAT 1 KL A/B BASED ON 6ES7321-7BH01-0AB0 . DIGITAL INPUT GALVANICALLY ISOLATED 16 DI; 24V DC, 1 X 20-POLE, PROCESS INTERRUPT, DIAGNOSTICS, FIT FOR ISOCH