Catalog > Consumer Electronics > Kits > DIY Kits 6ES7422-1BL00-0AA0 6ES7422-1BL00-0AA0 SIMATIC S7-400, digital output SM 422, isolated 32 DO; 24 V DC, 0.5 A Call for Price 0 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE