Hey folks
I am trying to connect DT80 to my computer and test whether I can read the registers for two thermocouple points that are connected via 485 connection.
On the serial port, I have 9-pin serial cable that I terminated to a RS485 to USB converter (https://www.amazon.ca/dp/B081NBCJRS). I use Pin no. 3 for A+, Pin no. 7 for B- and Pin no. 5 for G.
Then I plugged in to the USB to my laptop and I use Modbus Poll to try to read this.
I have configured the DT80 to communicate as RS485 via deX2 (Settings > Communication > Serial Port > Mode > RS485)

I am getting the error message as per above (Read Error, Break condition).
Can anyone please tell me whether:
1) The RS485 pin assignment is correct (3 --> A, 7 --> B, 5 --> G)?
2) Any idea what the error message means?
3) What is the typical 485 connection you guys ever used?
Regards
Faiz
Hey folks
I am trying to connect DT80 to my computer and test whether I can read the registers for two thermocouple points that are connected via 485 connection.
On the serial port, I have 9-pin serial cable that I terminated to a RS485 to USB converter (https://www.amazon.ca/dp/B081NBCJRS). I use Pin no. 3 for A+, Pin no. 7 for B- and Pin no. 5 for G.
Then I plugged in to the USB to my laptop and I use Modbus Poll to try to read this.
I have configured the DT80 to communicate as RS485 via deX2 (Settings > Communication > Serial Port > Mode > RS485)

I am getting the error message as per above (Read Error, Break condition).
Can anyone please tell me whether:
1) The RS485 pin assignment is correct (3 --> A, 7 --> B, 5 --> G)?
2) Any idea what the error message means?
3) What is the typical 485 connection you guys ever used?
Regards
Faiz