The digital functions explain how digital values are combined for example, basic calculations, comparisons or data type conversion. Theĭescription of the “Basic Functions” of a binary control, such as logic operations or latching/ unlatching functions, makes it particularly easyįor first-time users or users changing from relay contactor controls to become acquainted with STEP 7. As a valuable supplement to the description of the languages,Īnd following an introduction to the S7-300/ 400 automation system, it provides valuable, practice-oriented information on the basic handling of STEP 7 when configuring, networking and programming SIMATIC PLCs. This book describes the STL and SCL programming languages for S7-300/400. This broad adaptability in representing the control task to be solved significantly simplifies working with STEP 7. The various methods of representation allow every user to select the suitable control function description. Several optional packages supplement these languages: S7-GRAPH (sequential control), S7-HiGraph (programming with state-transition diagrams) and CFC (connecting blocks similar to function block diagram).
SIMATIC STEP 7 SCL WINDOWS
Microsoft Windows has been chosen as the operating system to take advantage of the familiar user interface of standard PCs as also used in office environments.įor block programming STEP 7 provides programming languages that comply with DIN EN 6.1131-3: STL (statement list an Assemblerlike language), LAD (ladder logic a representation similar to relay logic diagrams), FBD (function block diagram) and the S7-SCL optional package (Structured Control Language, a Pascal-like high-level language). STEP 7 is used to configure and program the SIMATIC S7, SIMATIC C7 and SIMATIC WinAC automation systems. Programming, data management and communications throughout the complete automation system.Īs the basic tool for SIMATIC, STEP 7 plays an integrating role in Totally Integrated Automation. This Totally Integrated Automation (TIA) enables integrated configuring and
The SIMATIC automation system unites all the subsystems of an automation solution under a uniform system architecture to form a homogeneous whole from the field level right up to process control.
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