SIMATIC S7-PLCSIM Advanced Software Update Service (SUS); within the framework of this contract, you will receive for one year all up-to-date software versions. The contract is extended automatically by 1 year if it is not canceled 3 months prior to expiration. Delivery and service: 1 year from date of invoice. Requirement for conclusion: current version of the software -- content: set (1x DVD + 1x USB)