SIEMENS EWK-SUS1055038 Description Description SIEMENS SOFTWARE UPDATE SERVICE SIMATIC STEP 7 PROFESSIONAL UPGRADE V13 -; V13 SP1 Related products SIEMENS 1FK7022-5AK71-1AG0 SIEMENS 1FK7042-5AF71-1EA0 SIEMENS 1FK7063-5AF71-1FG2 SIEMENS 1FT5066-1AF71-4AA0 SIEMENS 1FK6042-6AF71-1TH0 SIEMENS 1FN1910-0AA20-1AA0