Data Ingestion: Modbus Connections

Go to Modbus > Modbus Master to view all the Modbus TCP and RTU/ASCII devices. In addition to setting up Modbus TCP and Modbus RTU devices, you can also enable/disable Device Fail Event and Command Fail Event of the Modbus Master services here.

To add a Modbus TCP device, do the following:

1. In the Modbus TCP section, select the TCP option.

2. Click ADD DEVICE. a. Specify the Device Name. b. Enter the Slave IP address. c. Specify the Slave Port and Slave ID. d. Click NEXT.

3. Click + ADD COMMAND.

4. Select or specify the function and the corresponding settings.

5. Select the Tag Type.

6. Click DONE.

7. Click NEXT.

8. Click DONE to save the settings.

   

   

To configure a Modbus TCP interface, select the TCP option and then click You can also specify Initial Delay, Maximum Retry, and Response Timeout (ms) values for the interface.

To add a Modbus RTU device, do the following:

1. In the Modbus RTU/ASCII section, click on the COM (RTU) button.

2. Click ADD DEVICE. a. Specify the Device Name and Slave ID. b. Click NEXT.

3. Click + ADD COMMAND.

4. Select or specify the function and the corresponding settings.

5. Click NEXT.

6. Click DONE to save the settings.

   

   

To configure Modbus RTU settings, select the RTU option and click . You can also specify Initial Delay (ms), Maximum Retry, and Response Timeout (ms) values for the interface. To manually set the inter-frame delay and inter-character timeout, you can uncheck the items and specify a time (ms).

Note: The inter-frame delay and inter-character timeout settings are only available for Modbus RTU.

Last updated on 2022-05-31 by Aeluin Chen (陳映攸)