KTA-282 Modbus TCP Weather Station Gateway
Figure 2: KTA-282 Webpage
Some common current weather values are displayed, along with their corresponding unit and multiplier. The unit
and multiplier are displayed dynamically; that is, they change if conversions change. This is therefore a good way
to view the current conversion settings of the KTA-282.
Below these readings is an indication of the current communication status between the gateway and weather
station, either “GOOD” or “BAD”.
Directly above the horizontal line reads the MAC address for the KTA-282. This identifier is globally unique.
Directly below the horizontal line is the configuration fields for the gateway, and a line of text reading: “After power
cycle, the TCP/IP settings will load from: <dynamic value>”. This text will read either “switches” or “memory” based
on the status of TCP switch 1. It is important to realise that the TCP/IP settings
may still be read from the
switches on power up
, despite changing them using Modbus or the webpage.
XML Request
In addition to Modbus TCP/IP, the gateway can also return the status of the holding registers via an XML file over
HTTP (port 80). To trigger this request; send a HTTP GET query to the KTA-282’s IP Address with the register
number appended after a forward slash. Alternatively, the entire register listing can be returned by using the same
query with a “registers.xml” termination. The XML file structure is shown in the screenshots. This format is
consistent.
Single Register
<IP Address> / <holding register number>
Using a web browser - with the gateway at its default address – requesting register 60:
192.168.1.100/60
7/05/2013
www.oceancontrols.com.au
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