5 Creating Project Files—Modbus Master to Devices
5.6Device List Setup
The device list menu item enables you to indicate which registers on the PLC will receive data from the devices. In this menu, you will enter the device type and address for each Siemens device connected to
port 2. You will also indicate to which registers on the PLC you want the DTU3005 to write device data.
Select Device List from the Edit menu to display the device list screen:
This screen is divided into two parts:
•On the left side of the screen is a list of the devices connected to port 2 (the list is initially empty). Up to 32 devices can be attached; however, only 17 of the devices are visible on the screen at one time. To see all the devices, click on the scroll bar with the mouse, or use the Up and Down Arrow and Page Up and Page Down keys.
•The right side of the screen is used to configure the data register information for the selected device, as shown in the example screen on the next page. You can add or delete devices, or change device configuration by highlighting the Device Type on the left side of the screen, then using the fields and buttons on the right side of the screen.
the screen. Press Enter, and the Device Types list displays:
Adding a Device
To add a device to the device list:
1.Highlight the first line where the Device Type and Address fields are
2.Press Enter or Tab to add a device. The cursor will move to the Device Type field on the right side of
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