09-24-2024 05:00 AM
Hello everybody,
I am using the serial port of a cRIO-FRC II with LV2015 to acquire 2 Keller RS485 pressure sensors.
To do this I am using the keller library on Real Time, I have no problem when only one sensor is connected but when both are connected the acquisition doesn't work. I see only one sensor and not for all the time.
I can't see the other sensor in none of the address available, there is someone who knows how to solve this issue?
Thanks in advance,
Marco
Solved! Go to Solution.
10-02-2024 10:30 AM
Hi Marco,
Can you share picture of the code you have done, I am working on something similar. Thanks.
10-02-2024 10:34 AM
How did you connected your wires (RS485A & RS485B) to your cRIO port.
10-02-2024 10:44 AM
Hi Omar,
I finally solved the problem.
I bought a RS485 to RS232 converter (something similar to the one in the pic) and linked the two sensors in parallel. The problem I had is that I had to assign a specific ID address for each sensor before acquiring them.
For doing that I used the k114 adapter of the keller sensors with their proprietary software.
The code in the picture works.
10-02-2024 11:13 AM
Thanks Marco,
How did you assign a specific ID address for each sensor before acquiring them, and how did you connected your wires( RS485A & RS485B) into that converter!! Is that converter is usb-RS485 converter or RS232-RS485 converter.
10-02-2024 11:51 AM
Thank you Marco and sorry for distributing,
How did you assign a specific ID address for each sensor before acquiring them, and how did you connected your wires( RS485A & RS485B) into that converter!! Is that converter is usb-RS485 converter or RS232-RS485 converter.