We provide OPC Scada Viewer that can receive data from the logger via the OPC interface (for example, like a SCADA system) and visualize them.
#Cmd modbus poll how to
How to view MODBUS register values in a more easy-to-grasp form (graphs, indicators, and so on)? Note: The "srvi" prefix adds the "DDE Server" plugin. There you should see the response items specified in the request properties.įigure 11: Selecting the data export module
How to make sure that the application correctly interprets the responses received from the device? Please note that if you do that, requests will not be displayed. On the tab shown in Figure 8, turn on the "Display parsed values" option. Please note that the response message must be at least as long as the request message.įigure 9: Data communication How to view register values, not raw MODBUS packets? The requests sent to the MODBUS device are highlighted in yellow. In this case, the data communication will look like shown in Figure 9. The value in the "Split strings by data timeout" field must be greater than or equal to the timeout specified in the "Request timeout" field for the MODBUS request.įigure 8: Configuring the data display mode
We recommend configuring the data display mode, as shown in Figure 8. How to make sure that the application sends requests and receives responses? It allows you to try all features! Plugins can be downloaded separately here