Software package eases standards compliance
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Pilz Automation Technology product story
Edited by the Engineeringtalk editorial team
Jul 3, 2008
PAScal has an intuitive graphical interface that allows users to visualise the safety system architecture, helping to avoid errors.
Pilz Automation Technology has released a new version of its PAScal software package for performing the calculations required when designing safety-related control systems for machinery in accordance with EN ISO 13849-1 or EN IEC 62061.
PAScal makes it much easier to ensure compliance with the standards' requirements, plus it helps to save both time and costs.
Version 1.2.0 includes a calculation graph as per EN ISO 13849-1 and runs on PCs with Microsoft Windows Vista.
It also features an intuitive graphical interface that enables users to visualise the safety system architecture, helping to avoid errors.
PAScal 1.2.0 allows users to open multiple projects, which is a major advantage when working on complex machinery or new projects that are similar to previous ones.
PAScal 1.2.0's usability is further improved by context-sensitive help and users now have greater control over their preferences.
PAScal enables a control system's safety functions to be broken down into sub-systems such as sensors, inputs, outputs, actuators and logic.
The software then calculates the overall probability of a dangerous failure per hour (PFHD) and verifies the data with the prescribed performance level (EN ISO 13849-1) or safety integrity level (EN IEC 62061).
The software can take into account possible alternative architectures and variations in the way components are connected together and parameterised.
A useful improvement in Version 1.2.0 relates to the way safety fieldbus connections can be configured.
When designing to EN ISO 13849-1, the calculator evaluates common-cause failures (CCF) and diagnostic coverage (DC) by considering factors such as shorts between contacts or synchronicity monitoring on multichannel sensors.
Underpinning the calculator is a database that contains a comprehensive data on Pilz safety products.
PAScal 1.2.0 supports the use of third-party libraries and improvements to the navigation tree make it easier to find the required products in the library.
Users can readily add to the library if they wish to design control systems with other components for which they possess the relevant numerical data.
As before, PAScal 1.2.0 enables reports to be produced for project documentation and data can be re-used in new projects.
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