6ES78331FB150YH5,STEP 7 SAFETY BASIC V15 SW DL
6ES78331FB150YK5,STEP 7 SAFETY BASIC V15 UPGR. SW
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6ES78331FB170YE5,STEP 7 SAFETY BASIC V17 UPGRADE
6ES78331FB180YA5,STEP 7 SAFETY BASIC V18
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