The simple and easily learned programming software executing under NT/2000/XP for the SIMATIC S7-200 PLC
A large number of wizards support the programming even of difficult automation tasks for fast start-up and time-saving programming
Large scope of functions
3 standard editors STL, LAD and FBD; switching between the editors is possible at any time
Use of LAD and FBD either in IEC 1131-3 or SIMATIC mode
Generation, exporting and importing of user-specific libraries (including standard commands and user-defined subroutines)
Documentation CD with manuals, software tools and example programs as support
STEP 7-Micro/Win Command Library, support for USS and MODBUS protocols (Optional)

Simatic STEP 7 Programming Packages

STEP 7 Basic software provides users with different tools for carrying out their automation projects with S7-300/400 PLC's:

SIMATIC Manager;
For joint, straightforward management of all tools and data for SIMATIC S7, SIMATIC C7 and SIMATIC WinAC.
Symbol Editor
for defining symbolic designations, data types, and comments of global tags.
Hardware Configuration;
for configuring the automation system and for parameterizing all modules that can be set.
Communication;
for configuring connections; cyclic data transmission between automation components via MPI or for event-driven data transmission by means of either MPI, via PROFIBUS or Industrial Ethernet.
Diagnostic functions;
for a quick overview of CPU data and the causes of errors while a user program is running.
STEP 7 features the time-tested and standardized PLC programming languages for creating the user program: Statement List (STL), Ladder Diagram (LAD), Function Block Control (FBD)
Furthermore, for special tasks, additional programming languages or technology-oriented configurations can be employed.

STEP 7 Lite is the new programming software that is extremely easy to use intuitively for the implementation of non-networked solutions with SIMATIC S7-300, SIMATIC C7, ET 200S ( IM 151/CPU and IM 151/CPU FO ) and ET 200X (BM 147/CPU ). STEP 7 Lite has been designed so that it can be learnt in the shortest possible time and so that it supports the user in every phase of the project with optimized handling capability. Projects created using STEP 7 Lite can also be used later with STEP 7 / STEP 7 Professional.

STEP 7 Professional supports all IEC languages. In addition to the languages recognized by STEP 7: LAD, FBD & STL the following are also available: "Sequential function chart" and "Structured text". An offline simulation of programs created with these languages is included. STEP 7 Professional thus replaces the combination of the individual packages STEP 7, S7-GRAPH, S7-SCL and S7-PLCSIM. A POWERPACK is offered to customers who already use STEP 7 and wish to change. A valid STEP 7 license is required for purchasing the POWERPACK. A separate update service is available for STEP 7 Professional .