AXSharp Compiler

AXSharp Compiler (ixc) translates PLC data structures into C# (PLC .NET Twin), which makes the PLC data available in a structured way for any .NET application.

Adding types and members to the communication over WebAPI

Starting from the version v2.0.0+ of sld, to make member or type accessible over the communication there is a need to add pragma {S7.extern=ReadWrite} or {S7.extern=ReadOnly} in the appropriate place in the code.

For details see here

Write PLC code

{#ix-attr:[Container(Layout.Stack)]}
{#ix-attr:[Group(Layout.GroupBox)]}
{#ix-set:AttributeName = "Location"}
{S7.extern=ReadWrite}
CLASS  GeoLocation
    VAR PUBLIC
        {#ix-set:AttributeName = "Latitude [°]"}
        {#ix-set:AttributeMinimum = -90.0f}
        {#ix-set:AttributeMaximum = 90.0f}
        Latitude : REAL;
        {#ix-set:AttributeName = "Logitude [°]"}
        {#ix-set:AttributeMinimum = 0.0f}
        {#ix-set:AttributeMaximum = 180.0f}
        Longitude : REAL;
        {#ix-set:AttributeName = "Altitude [m]"}
        Altitude : REAL;
        {#ix-set:AttributeName = "Short descriptor"}
        Description : STRING[10];
        {#ix-set:AttributeName = "Long descriptor"}
        LongDescription : STRING[254];
    END_VAR    
END_CLASS

Compile to get .NET twin

using System;
using AXSharp.Connector;
using AXSharp.Connector.ValueTypes;
using System.Collections.Generic;

[Container(Layout.Stack)]
[Group(Layout.GroupBox)]
public partial class GeoLocation : AXSharp.Connector.ITwinObject
{
    public OnlinerReal Latitude { get; }

    public OnlinerReal Longitude { get; }

    public OnlinerReal Altitude { get; }

    public OnlinerString Description { get; }

    public OnlinerString LongDescription { get; }

    --- truncated ----

You can then access the data in your .NET application

Use in any .NET application

// Write
await Entry.Plc.weather.GeoLocation.Longitude.SetAsync(10);

// Read
var longitude = await Entry.Plc.weather.GeoLocation.Longitude.GetAsync();

// Bulk read
Entry.Plc.weather.GeoLocation.Read();

// Bulk write
Entry.Plc.weather.GeoLocation.Write();

AXSharp compiles transpiles the following project blocks: