Gets / Sets slave address of target MODBUS device.

Implements

IController.Path

Remarks

For MODBUS TCP Devices, Path is the Unit ID (sometimes called the Index number) of the target device. For MODBUS RTU/ASCII Devices, Path is the Slave ID ( sometimes called the Node) of the target device. Messages sent with Path = "0" is a MODBUS BROADCAST command which all slave devices recognize. MODBUS READ functions are not supported broadcast operations and will result in an InvalidOperationException by INGEAR.NET.MBLINK

Example

VB
Imports MBLink
' *********************
' * Create Controller
Dim MBDevice As new Controller

' **********************
' * create RTU serial transport class
' * COM1, 19200, N, 8, 1 
Dim transport as new CommDriver
transport.Driver = DRIVER.SERIAL
transport.Protocol = PROTOCOL.RTU
transport.ComPort = COMPORT.COM1
transport.Baud = BAUD.BAUD_19200
transport.Parity = PARITY.NONE
transport.DataBits = DATABITS.DATABITS_8
transport.stopBits = STOPBITS.STOPBITS_1

' ************************
' * assign transport to Controller
MBDevice.Transport = transport

' ****************************
' * MODBUS device is node 1
MBDevice.Path = "1"

C#
using MBLink;
/////////////////////////////////
// Create Controller
Controller MBDevice = new Controller();

/////////////////////////////////
// create RTU serial transport class
// COM1, 19200, N, 8, 1 
CommDriver transport = new CommDriver();
transport.Driver = DRIVER.SERIAL;
transport.Protocol = PROTOCOL.RTU;
transport.ComPort = COMPORT.COM1;
transport.Baud = BAUD.BAUD_19200;
transport.Parity = PARITY.NONE;
transport.DataBits = DATABITS.DATABITS_8;
transport.stopBits = STOPBITS.STOPBITS_1;

//////////////////////////////
// assign transport to Controller
MBDevice.Transport = transport;

//////////////////////////////
// MODBUS device is node 1
MBDevice.Path = "1";

See Also

Controller Class | MBLink Namespace

---