ModbusBridge Object

To add ModbusBridge objects to your MBTCP hierarchy

1. Right-click on the TCPIP_PORT branch.

2. Select Add ModbusBridge Object from the shortcut menu.

   • Default name is New_ModbusBridge_000.

     Note: You can add up to 247 objects of each type to the hierarchy. However, the bridge itself limits the number of PLCs that can be connected to the serial line.

3. Rename as appropriate.

   • The New_ModbusBridge_000 Parameters configuration view is displayed.

     

     This configuration view has three configurable elements.

   • Bridge type: From the drop-down menu, select the type of communications bridge to use for the connection to the TCP/IP Port.
     

     Default bridge type	Alternative bridge type
     Modbus Bridge This attribute is editable Maximum number = 4 Minimum number = 1 Default value = 2	NR&D Pen-T Bridge This attribute is not editable Value of this attribute = 1

   • Network address: Enter the host name or IP address of the bridge.

     • The number of characters should not exceed 255.

     • The field cannot be blank (number of characters cannot be zero).

     • The default value is 1.0.0.0.

   • Maximum outstanding messages: Enter the maximum number of queued messages allowed in the Modbus Bridge.

     Note: The Bridge Type used governs the value configured.

     From the ModbusBridge branch of the OI Server hierarchy, the following objects can be created:

     • Compact984 Object

     • ModiconMicro Object

     • TSXMomentumRS Object

     • ModbusPLCRS Object

       For further instructions on adding these objects, see Adding the Compact984, ModiconMicro, TSXMomentumRS, or ModbusPLCRS Objects to the MBTCP Hierarchy.