You need an RS485 based MODBUS interface to talk to that device. You might be able to find a cDAQ device that can handle that, but there are alternatives such as discussed at https://www.mathworks.com/help/supportpkg/arduino/ref/arduino-example-modbus-rs485.html?searchHighlight=rs485%20&s_tid=srchtitle_rs485%2520_17
On the MATLAB side you could use the Test and Measurement toolbox, which has modbus functions built in https://www.mathworks.com/help/icomm/ug/create-a-modbus-connection.html
The device you are using appears to be https://store.danfoss.com/ca/en_US/Drives/DrivePro%C2%AE-Services/Exchange-Units/FC-051PK37S2E20H3XXCXXXSXXX/p/132F0002 which has an RS485 interface but does not have an ethernet interface (MODBUS is usually RS485 or else TCP). So the interface between your host and RS485 has to be figured out. I see some sites offering USB to RS485 convertors, and that might be good enough for your purposes when used with Test and Measurement
