In SISTEMA, create a new project and define your safety functions (e.g., "E-Stop Circuit" or "Light Curtain Guarding"). Every safety function requires three main blocks: Detects the hazard. Logic (Processing): Decides the action. Output (Actuator): Executes the safe state. 3. Map Beckhoff Components
The Beckhoff SISTEMA library is a pre-compiled dataset containing these exact safety metrics for the entire TwinSAFE portfolio. Instead of manually extracting data from data sheets, users import the library directly into the software. This saves time and eliminates human error during data entry. Core Components in the Beckhoff Library
Combine the library with TwinCAT's feature:
The process for creating a custom library in TwinCAT 3 involves a few key steps. beckhoff sistema library
It ensures that the safety validation is based on the actual programmed configuration. If the hardware changes in TwinCAT, the export changes accordingly, alerting the safety engineer that recalculation is necessary.
CASE iStep OF 0: // Idle bInlet := FALSE; bDrain := FALSE; IF bStart THEN iStep := 10; END_IF 10: // Fill bInlet := TRUE; tonFill(IN:= (bLevelHigh), PT:= T#5S); IF tonFill.Q THEN iStep := 20; END_IF // ... and so on for mixing, draining, etc. END_CASE
Provides audit-ready documentation required by CE, OSHA, and global safety auditors. In SISTEMA, create a new project and define
// Validate Emergency Stop achieves PL e fbSistema_EStop( Enable := bMachineRunning, Config := (Category := CAT.4, MTTFd_Channel_A := 150, MTTFd_Channel_B := 150, DC_Avg := 0.99, CCF_Score := 80), Result => eStopResult, bCalculate := bSafetyTestTrigger );
Create a new project in SISTEMA and define the required Performance Level (PLr) based on your machinery risk assessment. Create a new within the project.
For cutting-edge industrial applications, Beckhoff offers highly specialized libraries that turn a standard PLC into an intelligent edge device. Output (Actuator): Executes the safe state
Right-click your Input subsystem and select .
EN ISO 13849-1 quantifies safety using a metric known as the Performance Level (PL), which ranges from PL a (lowest risk reduction) to PL e (highest risk reduction). Determining whether a system meets the required PL requires complex mathematical evaluation of several parameters: MTTFdcap M cap T cap T cap F sub d : Mean time to dangerous failure.
Using the Beckhoff SISTEMA library transforms functional safety design from a tedious mathematical chore into a streamlined validation process. It ensures your TwinSAFE hardware is fully optimized, certified, and compliant with modern international standards. To help you finalize your safety documentation,
Here is why this is interesting from an architectural perspective:
The library is not a replacement for TwinSAFE logic (which runs on EL6900 terminals). Instead, it is a . You can pass parameters from TwinSAFE safety inputs (via ADS communication) into the Tc3_Sistema function block running on the standard PLC core.