Builder User's Guide.
12. Click Download from the Home Page to load the configuration of
the Modbus Slave to the controller.
Configuring a Modbus TCP Master
Modbus TCP Master is used for communication between the
controller and third-party Modbus slave devices over Ethernet.
Prerequisite
A new project is created and connected to a controller in ControlEdge
Builder.
To set a controller as a Modbus TCP Master
1. From the Home Page, click Configure Ethernet Ports and select
ETH1 or ETH2.
2. Under Network Setting, select Use the following IP address and enter
the details in the IP Address, Subnet Mask and Gateway fields.
3. Under Protocol Binding, select Modbus TCP Master to bind Modbus
TCP Master to the Ethernet port.
4. Click Save to save the configuration, and click Back to return to the
Home Page.
5. Click Connect from the Home Page to connect a controller.
6. Click Download from the Home Page to load the configuration of
Modbus TCP Master to the controller.
7. Click IEC Programming Workspace from the toolbar.
8. Right-click Logical POUs and select Insert > Program to add a new
POU.
9. Under Physical Hardware, right-click Task and select Insert > Task to
add a task.
10. Right-click the task you have inserted, and selectInsert > Program
instance to add a program instance.
11. Right-click Libraries and select Insert > Firmware Library, select
MODBUS.FWL. Then click Include.
12. Right-click Data Types and select Insert > Datatypes. In the pop-up
window, enter the Name and click OK.
13. Double-click the data type you have inserted and define an array in
worksheet shown as below as an example, then click Save button
84
Chapter 6 - Communication
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