support periphery signals

Author: sripp

TiaCodeGen.Tests/SampleTests.cs

@@ -315,5 +315,27 @@ public void MultipleOr()
             block.Interface = TestInterface;
             var xml = block.GetCode();
         }
+
+        [Test]
+        public void PeripheryFixedSignal()
+        {
+            var codeblock = new CodeBlock() { Safety = false };
+
+            var nw = new Network("Test3", "Test3en");
+            nw.Add(
+                new Coil(
+                    new FixedPeripherySignal("=PBG10.6+FBG11-BV1:4"),
+                    new And(
+                        new Signal("1")
+                    )
+                )
+            );
+
+            codeblock.Add(nw);
+
+            var block = new Block("Test", "blabla", codeblock);
+            block.Interface = TestInterface;
+            var xml = block.GetCode();
+        }
     }
 }

TiaCodegen/Commands/Signals/FixedSignal.cs

@@ -11,4 +11,10 @@ public FixedSignal(string name, SignalType signalType = SignalType.Bool, string
                 base(name, signalType, customType)
         { }
     }
+    public class FixedPeripherySignal : FixedSignal
+    {
+        public FixedPeripherySignal(string name, SignalType signalType = SignalType.Bool, string customType = null) :
+                base(name, signalType, customType)
+        { }
+    }
 }

TiaCodegen/Commands/Signals/Signal.cs

@@ -369,11 +369,19 @@ public void AddXmlToStringBuilder(ulong id, StringBuilder sb)
                     }
                     else
                     {
-                        sb.AppendLine("<Component Name=\"" + part + "\">");
+                        if (this is FixedPeripherySignal)
+                        {
+                            sb.AppendLine("<Component Name=\"" + part + "\" SimpleAccessModifier=\"Periphery\">");
+                        }
+                        else
+                            sb.AppendLine("<Component Name=\"" + part + "\">");
                     }
                     sb.AppendLine("</Component>");
                 }
-                sb.AppendLine("<Address Area=\"None\" Type=\"Bool\" BlockNumber=\"0\" BitOffset=\"0\" Informative=\"true\" />");
+                if (this is FixedPeripherySignal)
+                    sb.AppendLine("<Address Area=\"PeripheryInput\" Type=\"Bool\" BitOffset=\"0\" Informative=\"true\" />");
+                else
+                    sb.AppendLine("<Address Area=\"None\" Type=\"Bool\" BlockNumber=\"0\" BitOffset=\"0\" Informative=\"true\" />");
                 sb.AppendLine("</Symbol>");
                 sb.AppendLine("</Access>");
             }