SIMATIC S7, S7-SCL Software Update Service 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. Period of delivery and service: 1 year from date of invoice Requirement for conclusion: current version of the software S7-SCL is particularly suitable for programming complex algorithms and arithmetic functions or for data processing tasks. S7-SCL combines language elements from high-level language programming, e.g. serial loops, alternative branches and jump lists, with PLC-typical language expansions such as the addressing of inputs and outputs or starting and querying of times and counters. S7-SCL corresponds to the textual high-level language ST (Structured Text) defined in the standard IEC 61131-3 and fulfills base level and reusability level requirements acc. to PLCopen. SCL is a fundamental part of STEP 7 Professional (TIA Portal)