Windows Failsafe Logic Controller (WinLC RTX F)

The Windows Failsafe Logic Controller is responsible for the actual control job and execution of the control program. It coordinates the associated input and output of process values via the lower-level PROFINET or PROFIBUS fieldbus system and makes the process values available for visualization and data processing tasks.

Fail-safe programs are created with the STEP 7 option package S7 Distributed Safety.

A safety control can be built up using fail-safe signal modules. This opens up

• Classical safety applications in the field of machine safety and press automation as well as
• Applications in process engineering and chemicals.

The I/O can be connected over PROFINET IO or PROFIBUS DP. The PROFIsafe profile supports fail-safe communication over the fieldbuses for this purpose.

The functional safety is implemented by means of targeted safety functions in the software. Safety functions are implemented with S7 Distributed Safety, to place the plant in a safe state or to hold it in a safe state. The safety functions are mainly contained within the following components:

• In the safety-related user program (safety program) in WinLC RTX F
• In the fail-safe inputs and outputs (F I/O).

The F I/O ensures safety-related processing of the field information (emergency stop pushbutton, light barriers, motor pre-control). It features all the hardware and software components required for reliable processing, according to the required safety class.

The user only programs the user safety functions. The safety functions for the process can be implemented with a user safety function or a system-internal fault reaction function. If the F system is unable to execute the actual user safety function, it will execute the fault response function: e.g. deactivation of the associated outputs and, if appropriate, F-CPU in STOP.

Interface to visualization

SIMATIC WinAC RTX F is easy to use with the SIMATIC HMI systems SIMATIC WinCC flexible or SIMATIC WinCC.

Visualization systems from third-party suppliers can be connected via the included SIMATIC NET OPC server.

Communication

The programming of the Windows Logic Controller with STEP 7 and also the visualization with SIMATIC HMI can be implemented both locally in the same PC and remotely using the standard SIMATIC networks Ethernet or PROFIBUS.

WinAC RTX F can exchange data via these networks:

• With additional WinAC stations
• With S7 controllers as well as
• With safety-oriented S7 controllers (safe PLC-to-PLC communication)

A SOFTNET S7 Lean license is included for Industrial Ethernet communication over the integral Ethernet interfaces of the SIMATIC PC.