Benchtop Measurement and Test
Distributed Measurement and Control
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Provides support for NI data acquisition and signal conditioning devices.
Provides support for Ethernet, GPIB, serial, USB, and other types of instruments.
Provides support for NI GPIB controllers and NI embedded controllers with GPIB ports.
I use cRIO-9039 and mod 9871 to communicate with RS-485, i alsow use modbus library.
Everything is working while i using USB/RS-485 converter but failed when i try to send orders to my device by cRIO.
I get only Timeout error (56).
I use Scan Interface.
I use port ASRL11::INSTR. I pluged the in the power to my device (mod 9871).
Do you have any idea why it happen?
Did you see this KB?
Thank for your replay. I use modbus protocol and i communicate with devices - i only have access to their address at RS485. I tried everything from this KB but i didn't find anything useful.
hello, I get the same problem as you and I would like to know if you were able to solve it. I want to do a Modbus RS485 communication with SB-RIO 9626 in order to control a temperature.
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