EverythingTosPLCSim 1.0.0

Everything To PLC-Sim

Introduction

This library is a modified version of NetToPLCSim v 1.2.5 from Thomas Wiens (aka the GOAT). It enables a direct communication with PLC-Sim via your GUI without the TCP/IP connection. The class library is also updated to .Net 8.0.

The folder "ETS7o GUI" contains several very usefull GUI parts, either from NetToPlcsim or myself.

This library requiers S7netplus Nugget package

Implementation

Either include the compiled dll or the source code in your project. You have to set the CPU target to x86 for your project.

How to use it

Start Service

First you have to creat an instance of PLCSimInterface. With the method

StartStation(int protocollType, string name, IPAddress plcsimIpAddress, int rack, int slot)

you create an instance of your PLC, directly connect to it and if succesfully connected, add it to its list of PLCs.

Read Data

I highly recommend to run the loops that reads and writes in a backgroundworker (Win Forms) or Thread.

backgroundWorkerRead.DoWork += (s,e) => ReadPLCAsync(_cancellationTokenSPS.Token);
backgroundWorkerRead.WorkerSupportsCancellation = true;

backgroundWorkerWrite.DoWork += (s,e) => WritePLCAsync(_cancellationTokenSPS.Token);
backgroundWorkerWrite.WorkerSupportsCancellation = true;

There are multiple ways to read data from the PLC and there is a short description for each method. The intended way to read is the Task

ReadWrapperAsync(int index, int startAddress, int bytesToRead)

index: Position Index within m_PLCs of the PLC you want to read
startAddress: Starting Address of the memory area
bytesToRead: Number of consecutive bytes you want to read
This task runs async and therefor can be awaited. This synchronizes request and answer for easier handling.

Write Data

Same as reading there are multiple ways to write data to the PLC. The intended way is either the task

WriteByteWrapperAsync(int index, int startAddress, byte[] data)

index: Position Index within m_PLCs of the PLC you want to write
startAddress: Starting Address of the memory area
data: Data Bytes you want to write to the PLC

or if you just want to set a specific bit

WriteBitWrapperAsync(int index, int startAddress, int bitAddress, int value)

value: can either be 0 or 1

Closing you Form

Upon closing your Programm Close() has to be called, otherwise the background Thread to communicate with PLC-Sim will block the process and prevent closing.

License

EverythingToPLCsim is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.