View single post by slychiu
 Posted: Tuesday Jan 31st, 2017 01:27 pm
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slychiu



Joined: Saturday Apr 29th, 2006
Location: Singapore
Posts: 5493
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Modbus/TCP Master Mode

For Modbus/TCP  ignore Baud Rate.

For Modbus/TCP, the Master is also referred to as Client and the Slave is referred to as Server.

The Modbus/TCP Master should set the Target IP and Port to the Modbus Slave which it is communicating with.

For TCP Interface, the ETH03 Universal 1.16 Firmware or above (not ETH03-General) must be used (this is preinstalled in the ETH03 for UCM/Modbus/ETH03).

If TCP is selected in Interface, the link to Comfort Server Manager will be seen as shown below;



Click on  Comfort Server Manager to select the IP address and Port for the ETH03. The screen below should pop up. The  screenshot shows 4 ETH03 devices in the same network, the 2nd  item is ETH03 Universal Firmware version 1.16 with IP address 10.0.0.233, which is the UCM/ETH03 used as Modbus Master and ignore the other ETH03s if present. Click on this line to show the parameters on the right pane. (The next Comfigurator 3.11.11 will allow Comfort Server Manager to be launched directly from the UCM/Modbus screen)

In Transport Protocol select TCP. In Routing Mode, select Server/Client or Client. Port 1001 is the port used by ETH03 – enter any port >= 1001. For Timeout, enter 0 (can ignore as Client Mode does not time out).
Target IP and Port – enter the IP address and Port of the Modbus Slave device. This allows the UCM/Modbus master to talk to the Modbus Slave. Note that the Slave Modbus devices must comply to the Modbus/TCP standard.



Last edited on Thursday Mar 30th, 2017 04:37 pm by slychiu

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