Vaisala DMT340 User Manual download pdf (Page 147)

Chapter 5 ___________________________________________________________________ Modbus

VAISALA _______________________________________________________________________ 145

1101-034

Figure 76 IP Configuration

4. Navigate back to the Network Settings menu. If you are using the

WLAN interface, select Wireless LAN Settings.

5. On the Wireless LAN Settings screen, set the network name

(SSID) and security options, and exit to save the changes.

1101-036

Figure 77 Wireless LAN Settings

6. Navigate back to the Network Settings menu. Select

Communication Protocol.

7. On the Communication Protocol screen, enable the Modbus

protocol. Press the EXIT button to save the changes.

Note that the device address setting is not relevant for Modbus

TCP. In the Modbus mode, the transmitter will respond to all valid

Modbus messages with any “unit identifier” value.

1101-034

Figure 78 Communication Protocol

8. The Modbus configuration is now complete, as configuration

changes made with the display and keypad are effective

immediately.

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Vaisala DMT340 User Manual Page 147