DrvMelsecPlc Communicator Driver (Custom)

Functional Description

DrvMelsecPlc is a custom Communicator driver in ScadaV6CommExt for field device connectivity. Protocol details follow the source implementation.

Scope and Version

Source: ScadaV6CommExt/DrvMelsecPlc.Logic
TFM: net8.0
Version: 6.0.0

Install and Enable

Deploy driver binaries to Communicator folders.
Activate driver in Administrator → Communicator → Drivers.
Upload configuration and restart Communicator.

Line and Device Configuration

Create a communication line with the proper channel type.
Add device and set address/timeouts.
Set polling options and CmdLine as required by this driver; see Functional notes and configuration (template and source) below for file names, address format, and line keys.

CustomOptions (extracted)

Key	Default	Note
`RetryCount`	—	Extracted from source; confirm meaning in driver implementation.
`EnableWriteBitToWordRegister`	—	Extracted from source; confirm meaning in driver implementation.
`IsStringReverseByteWord`	—	Extracted from source; confirm meaning in driver implementation.
`NetworkNumber`	—	Extracted from source; confirm meaning in driver implementation.
`NetworkStationNumber`	—	Extracted from source; confirm meaning in driver implementation.
`TargetIOStation`	—	Extracted from source; confirm meaning in driver implementation.

Code hints

24: protected DeviceTemplate deviceTemplate;
44: ConnectionRequired = false; //不使用默认连接池
78: string fileName = PollingOptions.CmdLine.Trim();
79: deviceTemplate = new DeviceTemplate();
95: InitPlcConnection();
112: if (plcDeviceSession.CheckPlcConnection(melsecMcNet, deviceTemplate))
174: private void InitPlcConnection()
176: var deviceType = LineContext.LineConfig.CustomOptions.GetValueAsEnum("CpuType", CpuType.None);
177: RetryCount = (short)LineContext.LineConfig.CustomOptions.GetValueAsInt("RetryCount");
189: Log.WriteAction($"[Channel]TcpClientChannelOptions, host: {tcpClientChannel.Host}, port: {tcpClientChannel.TcpPort}");
191: melsecMcNet.EnableWriteBitToWordRegister = LineContext.LineConfig.CustomOptions.GetValueAsBool("EnableWriteBitToWordRegister");
192: melsecMcNet.ByteTransform.IsStringReverseByteWord = LineContext.LineConfig.CustomOptions.GetValueAsBool("IsStringReverseByteWord");
193: melsecMcNet.NetworkNumber = (byte)LineContext.LineConfig.CustomOptions.GetValueAsInt("NetworkNumber");
194: melsecMcNet.NetworkStationNumber = (byte)LineContext.LineConfig.CustomOptions.GetValueAsInt("NetworkStationNumber");
195: melsecMcNet.TargetIOStation= (ushort)LineContext.LineConfig.CustomOptions.GetValueAsInt("TargetIOStation");
196: melsecMcNet.CommunicationPipe = new PipeTcpNet(tcpClientChannel.Host, tcpClientChannel.TcpPort)
202: IsPersistentConnection = true,
236: protected DeviceTemplate deviceTemplate;
255: ConnectionRequired = false; //不使用默认连接池
289: string fileName = PollingOptions.CmdLine.Trim();
290: deviceTemplate = new DeviceTemplate();
306: InitPlcConnection();
323: if (plcDeviceSession.CheckPlcConnection(deviceTcpNet, deviceTemplate))
385: private void InitPlcConnection()
388: var deviceType = LineContext.LineConfig.CustomOptions.GetValueAsEnum("CpuType", MelsecPlcCpuType.None);

Administrator UI (DrvMelsecPlc.View)

Configure in Administrator → Communicator. Labels below come from the View language pack.

View source: ScadaV6CommExt/DrvMelsecPlc.View
Main forms:
- （无独立 Forms 目录或仅有控件）

Phrase key	Text
No phrases parsed; check Lang folder in View project.

Functional notes and configuration (template and source)

Derived from Logic/Common and device template XML: driver behavior and the Administrator/Communicator fields to set (address, CmdLine, line CustomOptions, template nodes).

Logic location

ScadaV6CommExt/DrvMelsecPlc.Logic
Common: DrvMelsecPlc.Common

Overrides

OnCommLineStart(), OnCommLineTerminate(), InitDeviceTags(), Session(), SendCommand()

CmdLine / template

PollingOptions.CmdLine.Trim();

DeviceConfig properties referenced

Property	Note
`StrAddress`	源码中对 DeviceConfig 的引用

Line CustomOptions

Key	Default
`RetryCount`	—
`EnableWriteBitToWordRegister`	—
`IsStringReverseByteWord`	—
`NetworkNumber`	—
`NetworkStationNumber`	—
`TargetIOStation`	—

XML keys (Common)

Node	Note
未在 Common 中解析到 GetChildAs*/AppendElem 节点（或无 Common 工程）。

Code excerpt

73: 
74:         public override void InitDeviceTags()
75:         {
76:             string fileName = PollingOptions.CmdLine.Trim();

75:         {
76:             string fileName = PollingOptions.CmdLine.Trim();
77:             deviceTemplate = new DeviceTemplate();
78:             if (!deviceTemplate.Load(Storage, fileName, out string errMsg))

87:                 //初始化点位
88:                 plcDeviceSession.InitDeviceTags(DeviceTags, deviceTemplate);
89: 
90:                 CanSendCommands = deviceTemplate.Cmds.Count > 0;

93:             InitPlcConnection();
94:             Log.WriteAction($"InitDeviceTags -> Line running");
95:         }
96: 

98: 
99:         public override void Session()
100:         {
101:             base.Session();

100:         {
101:             base.Session();
102:             if (deviceTemplate == null)
103:             {

Troubleshooting

No data: line, address, template, connectivity.
Template load errors: check logs.
Options ignored: verify option scope (line vs device).

DrvMelsecPlc Driver (Custom)