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# MewtocolNet
An easy to use Mewtocol protocol library to interface with Panasonic PLCs over TCP/Serial.
## Disclaimer
This library is not an official panasonic product nor does panasonic provide financial support or limitations in any form.
This software was written by WOLF Medizintechnik GmbH (@WOmed/dev).
# Features
> Features that are not checked still need implementation
- [x] Read out stats from your PLC
- [x] Read and write registers in real time
- [x] Dynamic register type casting from properties
- [x] Change run / prog modes
- [x] Write / read byte blocks in a whole chain
- [ ] Upload / Download programs to the PLC
- [ ] Reading / writing PLC system registers
# Support
## .NET Support
This library was written in **netstandard2.0** and should be compatible with a lot of .NET environments.
For a full list of supported .NET clrs see [this page](https://docs.microsoft.com/de-de/dotnet/standard/net-standard?tabs=net-standard-2-0#select-net-standard-version)
## PLC Support
> This library was only tested with a few PLCs, other types that support the Panasonic Mewtocol protocol might work.
> Use at your own risk, others might follow with community feedback
|PLC Type|Supported|Tested|
|--------|---------|------|
FPX C14 |✔ |✔ |
FPX C30 |✔ |✔ |
FPX-H C14|✔ |✔ |
FPX-H C30|✔ |✔ |
FP Sigma |✔ |❌ |
Where is the RS232/Serial support?
> Support for the serial protocol will be added soon, feel free to contribute
# Installing
Install this package by using [Nuget](https://www.nuget.org/packages/Mewtocol.NET) or reference
```XML
```
in your dependencies.
Alternatively use the dotnet CLI and run
```Shell
dotnet add package Mewtocol.NET
```
# Protocol description
Panasonic has published a [protocol definition](https://mediap.industry.panasonic.eu/assets/custom-upload/Factory%20&%20Automation/PLC/Manuals/mn_all_plcs_mewtocol_user_pidsx_en.pdf) on their site.
Refer to this site if you want to see the general functionality or add / report missing features.
> This library is at the time not feature complete, but all essential features are provided
# Usage
See [More examples](/Examples) here
## Connecting to a PLC
Connecting to a PLC is as simple as
```C#
//attaching a logger
Logger.LogLevel = LogLevel.Verbose;
Logger.OnNewLogMessage((date, msg) => {
Console.WriteLine($"{date.ToString("HH:mm:ss")} {msg}");
});
//setting up a new PLC interface
MewtocolInterface plc = new MewtocolInterface("192.168.115.5");
await plc.ConnectAsync();
```
## Reading data registers / contacts
[Detailed instructions](https://github.com/WOmed/MewtocolNet/wiki/Attribute-handled-reading)
- Create a new class that inherits from `RegisterCollectionBase`
```C#
public class TestRegisters : RegisterCollectionBase {
//corresponds to a R100 boolean register in the PLC
[Register(100, RegisterType.R)]
public bool TestBool1 { get; private set; }
//corresponds to a XD input of the PLC
[Register(RegisterType.X, SpecialAddress.D)]
public bool TestBoolInputXD { get; private set; }
//corresponds to a DT7012 - DT7013 as a 32bit time value that gets parsed as a timespan (TIME)
//the smallest value to communicate to the PLC is 10ms
[Register(7012)]
public TimeSpan TestTime { get; private set; }
//corresponds to a DT1101 - DT1104 string register in the PLC with (STRING[4])
[Register(1101, 4)]
public string TestString1 { get; private set; }
}
```
- Connect to the PLC and attach the register collection and logger
- attach an automatic poller by chaining `.WithPoller()` after the register attachment
```C#
//setting up a new PLC interface and register collection
MewtocolInterface plc = new MewtocolInterface("192.168.115.5");
TestRegisters registers = new TestRegisters();
//attaching the register collection and an automatic poller
plc.WithRegisterCollection(registers).WithPoller();
await plc.ConnectAsync(
(plcinf) => {
//reading a value from the register collection
Console.WriteLine($"Time Value is: {registers.TestTime}");
}
);
```
- Your properties are getting automatically updated after the initial connection
> Note! this is not your only option to read registers, see here
## Writing data registers / contacts
⚠ **Never set a register by setting the property, always use one of the provided methods**
### Synchronous
Sets the register without feedback if it was set
```C#
//inverts the boolean register
plc.SetRegister(nameof(registers.TestBool1), !registers.TestBool1);
//set the current second to the PLCs TIME register
plc.SetRegister(nameof(registers.TestTime), TimeSpan.FromSeconds(DateTime.Now.Second));
//writes 'Test' to the PLCs string register
plc.SetRegister(nameof(registers.TestString1), "Test");
```
You can also set a register by calling its name directly (Must be either in an attached register collection or added to the list manually)
Adding registers to a manual list
```C#
plc.AddRegister(105, _name: "ManualBoolRegister");
```
Reading the value of the manually added register
```C#
//get the value as a string
string value = plc.GetRegister("ManualBoolRegister").GetValueString();
//get the value by casting
bool value2 = plc.GetRegister("ManualBoolRegister").Value;
//for double casted ones like numbers
var value2 = plc.GetRegister>("NumberRegister").Value;
```