Name: Waveshare RS485 TO ETH
Brand: Waveshare
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485 TO ETH (B) User Manual

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version firmware that supports JSON).

Figure 39 POST+JSON

Vircom version 5.17 adds two options in the JOSN to Modbus RTU settings, as shown

in the figure:

1. JSON upper layer protocol: If it is no protocol or MQTT protocol, please select the first

item: "NONE/MQTT". If it is HTTP POST, please select the second item "HTTP POST", if it is

HTTP GET, please select the third item "HTTP GET".

2. POST/GET URL: When choosing POST or GET, you must fill in the URL. For example, if the

URL is http://sacom/wri/v2, remove the http:// in front and enter sacom/wri/v2 directly .

Other JSON structure design methods are the same as the methods introduced before.

After clicking the "Save JSON Settings" button, if POST/GET is selected, HTTP header format

information will be added in front of the JSON data to support the HTTP transmission

protocol.

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