RS232 and RS485 SERIAL ADAPTERS FOR RIO

RS232 and RS485 SERIAL ADAPTERS FOR RIO

I successfully tested the following USB to serial adapters on the Rio. The test was functional and not exhaustive, using Nodered to communicate with a serial Modbus device.

I also had 2 other USB RS232 adapters that I could not identify the manufacturer, but they also worked. I did not have an adapter that did not work.

All the adapters were between $15 and $30 .

RS-232 USB ADAPTERS
Gearmo Model: GM-FTDI-A12
Sabrent USB to Serial converter
Aluratek Model: AUS100
Belkin Model: F5U409
Gigaware / Radio Shack Catalog Number: 2603487

RS-485 USB ADAPTER
Gearmo Model: GM-FTDI2-A36

TEST SETUP
The test used the Rio Nodered and the node-red-contrib-serial-modbus node.

  1. Plug the adapter into the USB port and verify it is recognized using groovManage / System / Serial Devices
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  2. Run a Nodered Flow that polls a Modbus device using Modbus Serial RTU. Verify the data looks correct.

Below shows the flow and the debug data
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Below shows the Nodered setup for the Serial Device within the Modbus In Node
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Below shows the Nodered setup for the Modbus In Node
image

RS232 and RS485 SERIAL ADAPTERS FOR RIO.zip (127.9 KB)

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