SIMATIC STEP 7 Professional V11 - Technological functions

Engineering of technological functions for the SIMATIC S7-1200

The technological functions for the SIMATIC S7-1200 are available with STEP 7 Basic as well as STEP7 Professional.

The SIMATIC S7-1200 supports up to 16 PID control loops for simple process control applications. These control loops are easily configured using a PID controller technology object and the supporting editors provided within the engineering system  STEP 7.

Two different PID controller algorithms are available in the S7-1200:

  • PID compact for continuous control and pulse control (pulse width modulation)

  • PID 3-Step for step control of valves and flaps 

 
Additionally, the SIMATIC S7-1200 supports PID auto-tuning to automatically compute the optimum tuning values for the gain, integral time and derivative time.

 PID commissioning control panel
The PID commissioning control panel included within SIMATIC STEP 7 simplifies the loop tuning process. It provides both automatic tuning and manual control capabilities for a single control loop and it also provides a graphical trend view of the tuning process.

PLCopen motion function blocks
The SIMATIC S7-1200 supports the open-loop speed and position control of stepper motors and servo drives. This functionality is easily configured using an axis technology object along with the internationally accepted PLCopen motion function blocks included within the engineering system SIMATIC STEP 7. Absolute, relative and velocity moves are supported in addition to home and jog functions.

Drive commissioning control panel
The drive commissioning control panel included with the engineering system SIMATIC STEP 7 simplifies the start-up and commissioning of stepper motors and servo drives. It provides both automatic and manual control of a single motion axis as well as online and diagnostics information.

Engineering of technological functions for the SIMATIC ET 200S

STEP 7 supports clear and uniform configuring of the technology modules. The product catalog presents all the available modules filtered context-sensitively and clearly structured according to function. The main technical features are presented as early as this selection stage. If several versions exist, the right one can be selected easily. The presentation in the hardware catalog and in the finished configuration in photographic quality prevents errors and provides an attractive picture of the configuration being built up.

After the ET 200S station has been selected for the project, it is depicted in the structured project tree - complete with the associated device configuration and online diagnostics. All the technology modules that can be configured and programmed in the TIA Portal are shown in the diagram. The procedure is intuitive: The modules are arranged in the hardware catalog on the right according to topics, and can be selected by order number and directly "placed" in the rack shown in photographic quality by means of drag-and-drop.


Parameter assignment of ET 200S modules

By selecting the required operating mode (1), the conditions for selecting the possible parameters and the required address space are defined. The appropriate parameters are displayed (2). Context-sensitive selection lists offer exactly the right choice of settings.
As required, cascading tool tips provide detailed information about the respective settings and even a direct link to the comprehensive online help system (3).
In the background, the appropriate addresses are automatically assigned correctly and, if required, adapted to the requirements of the system.