DeepAI AI Chat
Log In Sign Up

PLCverif: Status of a Formal Verification Tool for Programmable Logic Controller

03/30/2022
by   Ignacio D. Lopez-Miguel, et al.
0

Programmable Logic Controllers (PLC) are widely used for industrial automation including safety systems at CERN. The incorrect behaviour of the PLC control system logic can cause significant financial losses by damage of property or the environment or even injuries in some cases, therefore ensuring their correct behaviour is essential. While testing has been for many years the traditional way of validating the PLC control system logic, CERN developed a model checking platform to go one step further and formally verify PLC logic. This platform, called PLCverif, first released internally for CERN usage in 2019, is now available to anyone since September 2020 via an open source licence. In this paper, we will first give an overview of the PLCverif platform capabilities before focusing on the improvements done since 2019 such as the larger support coverage of the Siemens PLC programming languages, the better support of the C Bounded Model Checker backend (CBMC) and the process of releasing PLCverif as an open-source software.

READ FULL TEXT

page 1

page 2

page 3

page 4

12/22/2021

Safety assurance of an industrial robotic control system using hardware/software co-verification

As a general trend in industrial robotics, an increasing number of safet...
02/19/2021

PCaaD: Towards Automated Determination and Exploitation of Industrial Processes

Over the last decade, Programmable Logic Controllers (PLCs) have been in...
11/09/2022

Improve Model Testing by Integrating Bounded Model Checking and Coverage Guided Fuzzing

The control logic models built by Simulink or Ptolemy have been widely u...
03/30/2022

Applying Model Checking to Highly-Configurable Safety Critical Software: The SPS-PPS PLC Program

An important aspect of many particle accelerators is the constant evolut...
06/01/2022

Formal Analysis of Lending Pools in Decentralized Finance

Decentralised Finance (DeFi) applications constitute an entire financial...
04/22/2018

Towards formal models and languages for verifiable Multi-Robot Systems

Incorrect operations of a Multi-Robot System (MRS) may not only lead to ...
02/08/2022

K-ST: A Formal Executable Semantics of PLC Structured Text Language

Programmable Logic Controllers (PLCs) are responsible for automating pro...