The document describes how to make FW update MODBUS RTU sensors using Teracom TCW210-TH, TCW260 or TCG140 controllers. For proper update follow the steps below:

1. Connect the sensor which should be updated to the RS-485 bus.

It is important that only this sensor is connected to the RS-485 bus of the controller.

2. Type in the address bar:

  • For TCW210-TH and TCW260 – http://IP-address-of-controller/teracom485.htm;
  • For TCG140 – http://localhost:24111/teracom485.htm.

3. Press the “Scan” button.

After a successful scan, “Current address”, “Sensor Info” and “ID” will be updated.

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4. Press “Choose file” and select the new firmware.

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5. Click on “Upload”.

6. Set the sensor in update mode.

Disconnect the RS-485 cable of the Modbus RTU sensor. Press and hold the button “config” of the sensor. While the button is pressed, connect the RS-485 cable. Immediately after the “Status” LED is on release the button. In the next 3 seconds press the button 3 times to enter in the update mode. If the sensor is successfully entered in update mode after these 3 seconds the LED is permanent on.

rs-485-humidity-and-temperature-sensor-tsh300-gal-1-s

7. Click on “Update”.

This will start the update procedure.

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8. Operation completed.

After a successful update, Status is “Operation completed”.

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We recommend regular check for new FW version and update MODBUS RTU sensors you are using.

 

 

 

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