Description

The S7 CPUs offer different integrated functions for implementing simple counting, positioning and closed-loop control tasks.

S7-1200

Depending on the CPU, up to six high-speed counters are integrated, three at 100 kHz and three at 30 kHz. Optionally, using Signal Boards, 200 kHz (24 V or 5 V version) is available. They are used for the precise monitoring of incremental encoders, frequency counting or high-speed counting of process events. Two high-speed outputs are integrated into the SIMATIC S7-1200 controller for use as pulse outputs. They can be used for the open-loop speed and position control of stepper motors and servo drives. They are easily configured using an axis technology object along with the internationally accepted PLC open motion function blocks included within the SIMATIC STEP 7 Basic engineering system.

Intuitive and efficient engineering in the TIA Portal

The engineering of the S7-1200 offers a project view for all tasks, up-to-date user guidance for intuitive and graphical configuring with intelligent drag-and-drop technology, uniform data storage and integration of SIMATIC WinCC Basic.

TIA Portal - Engineering for the S7-1200

In the project view, the project tree (1) shows all the hardware components that are used and the associated program structure and data elements. This provides direct access to the appropriate devices, folders and special views that support the user with the automation tasks. Technology functions, such as closed-loop control or motion, are embedded in the engineering. This includes parameter assignment as well as commissioning functions.

The control panel included with the SIMATIC STEP 7 Basic engineering system simplifies the commissioning of stepper drives and servo drives with a pulse/direction interface. It provides both automatic and manual control of individual single motion axes as well as online diagnostics information.

Below the axis parameterization (2), the user program (3) is displayed. This program editor supports efficient programming in LAD, FBD and SCL using statements and libraries (4).

Symbolic program elements can be directly assigned between the PLC and HMI editors using intelligent drag-and-drop functions. HMI editors as well as PLC editors can be efficiently used together in the engineering environment.

Devices and networks are easily configured using graphical editors, thanks to the structured interface.