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Access to the PLC Data in the Controller Application

The CODESYS PLCHandler is an easy-to-use software interface (API) for the communication between CODESYS controllers and external client systems. An external client like a visualization or a service panel can access the IEC 61131-3 variables and the online services of the controller using this API.

Functionality of the CODESYS PLCHandler (excerpt)

  • Establishing or terminating a controller connection
  • Reading the variable list of the controller
  • Cyclical reading of variable values from the controller
  • Synchronous exchange of variable values (read/write) with the controller
  • Instantiability for the simultaneous communication with several controllers
  • Automatic reconnection to the controller after connection failure
  • Automatic reconnection after a program download from CODESYS to the controller
  • Transfer of data to and from the controller
  • Callback functions for different events

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Callback features for various events Dec

The CODESYS PLCHandler has been implemented as a C++ class and is delivered in form of a Software Development Kit (SDK). Above that, the PLCHandler also offers a plain C interface and is available as an ActiveX component for Microsoft Windows. Apart from platform-specific files for example for Windows, Linux® or VxWorks® the SDK also contains trial clients in source code for different platforms.

Howtoget

The PLCHandler is purchased by companies who want to establish a connection between an external system and CODESYS.

  • Manufacturers of programmable devices or vendors of third-party systems such as visualizations, operating panels etc.:
    Company license to access CODESYS controllers with the “CODESYS PLCHandler for device manufacturers” from a certain platform
  • System integrators and users for example from the machine or plant building industry: If you want to establish a connection to a third-party system, please contact your system/device supplier or us. 
  • For more information or an offer please contact our sales department under info@emea.com.tr

Products

IEC 61131-3 controllers converted from any kind of intelligent device – by means of the adaptable CODESYS Control runtime system.

EMEA Technology

Runtime Toolkit

SDK for the implementation of industrial IEC 61131-3 controllers with a customized PLC runtime system programmable with CODESYS

EMEA Technology

Control

CODESYS Control is the corresponding runtime system to the CODESYS Development System.

EMEA Technology

CODESYS Virtual Control SL

The IEC 61131-3-compatible runtime system CODESYS Virtual Control SL can be installed on any architecture with container or hypervisor / VM - as often as required and with scalable performance.

EMEA Technology

OPC Server

Standard Interface to access the IEC 61131-3 process data of a controller via Open Platform Communications.

EMEA Technology

OPC UA

Standard Interface for Communication in Smart Factory and Industry 4.0 Systems

EMEA Technology

Redundancy Toolkit

Two Industrial IEC 61131-3 Controllers for one Single Application make the Application Fail Safe

EMEA Technology

Multicore

Add-on component for standard devices with Symmetric Multicore Processing (SMP) support

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