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