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The Festo controller CECC product family is affected by multiple vulnerabilities in the CODESYS V3 runtime.

The products are shipped with an unsafe configuration of the integrated CODESYS Runtime environment. In this case no default password is set to the CODESYS PLC and therefore access without authentication is possible.

With a successful established connection to the CODESYS Runtime the PLC-Browser commands are available. Thus granting the possibilities to e.g. read and modify the configuration file(s), start/stop the application and reboot the device.

Incomplete Festo product documentation of remote accessible functions and their required IP ports. Depending on the product a description of the supported features can be found in the product documentation to some extent.

Festo developed the products according to the respective state of the art. As a result, the protocols used no longer fully meet today's security requirements. The products are designed and developed for use in sealed-off (industrial) networks. If the network is not adequately sealed off, unauthorized access to the product can cause damage or malfunctions, particularly Denial of Service (DoS) or loss of integrity.

Several high severity vulnerabilities in CODESYS V3 affecting Festo products could lead to Remote Code Execution or Denial of Service.

A brief explanation on how to load a new project to a Festo PLC over Ethernet without the use of the CoDeSys 3.5 software

The application note contains a step by step explanation how to configure a Balluff RFID read/write system as IO-Link device connected to CECC-LK in Codesys V3

The application note contains a step by step explanation how to configure a SDAT sensor as IO-Link device connected to CECC-LK in Codesys V3.

This application note describes the license dependency with the CODESYS OPC DA server and possible alternatives for CODESYS Development System >= V3.5 SP12

A checklist to avoid EMC trouble

This Application note gives detailed explanation about Festo PLC Modbus TCP/IP communication with Allen-Bradley PLC as Master & Slave

This Application Note describes how to use the host sever Function Block of the FPosCR from Festo & how to integrate in CODESYS programming environment using Modbus/TCP, EtherNet/IP and PROFINET communication.

Festo SE & Co KG complies with national and international laws, guidelines, standards and regulations which are applicable to our products. We constantly monitor the dynamics of legislation. This Application Note give an overview.

This Application Note describes how to use the host Function Block of the FPosCR from Festo & how to integrate in CODESYS programming environment using Modbus/TCP communication.

This application note helps the user to establish Modbus com-munication between Siemens PLC and Codesys PLC.

It explains the configurations needed in both the controllers in order to achieve Modbus communication between them.

It also explains the Function Blocks needed in Siemens PLC side to establish Modbus communication.

This document is intended to provide users of Festo control products with an introduction and support on how Festo controllers can be used as securely as possible from the point of view of cyber security.

How to read and write Date & Time from the command prompt.

Example design diagram for a PLd Servopneumatic Balancerkit.

This Application Note explain the update process of the application
software of the CECC-D-BA Balancer controller.
And the backup and restore function of the configuration-files.
Reading of log-data.

Example design diagram for a PLb Servopneumatic Balancerkit.

This application note describes how to use the host function
blocks of the servopneumatic balancerkit YHBP in CODESYS
(V3). The additional document explain the communication via Modbus TCP. 

Library in download-file included.