DSD TECH SH-U11F Isolated USB to RS485 RS422 Converter Built-in FTDI chip for Industrial Application

The advantage of this unit is that it uses a USB2 B port so if your computer has USB C ports you're not limited to the USB A cable supplied. For a MacBook Pro with USB C ports just dug out the USB C to 2B printer lead and adapter sprang into life enabling configuration and monitoring of the ModBus slaves.

On initially receiving the unit the output on both serial and USB was corrupted as though baudrate clock not quite set as needed. Seller immediately replaced the device without any quibbles. New part worked fine.Device provides required grounding and possibility to set termination resistance, great in such a device at this price. Great quality in construction as well.Have now tried it in 2-wire 485 and 4-wire 422/485 and found all OK.For the driver on Win10, don't make my mistake - I initially forgot to run install as Administrator and device was not detected. Run install on extracted exe by right click and select "Run as Administrator ..." and all should be good.

This Modbus Interface works really well.Used it with a few types of Scanning Software and provided you get the Baud Rates and settings right, it always finds the Devices on the RS485 Modbus RTU Network.Just what I needed to help me Commission the various different devices onto the BMS System.Saved me loads of time and hassle.

Works perfectly but would be nice if the design would allow you to squeeze the ribbon cable secure to the box. Would be easy fix and 5 star for me

I’ve been trying to test an Arduino RS422 interface and was getting no where. This allows me to see the data flowing and worked straight out of the box. The device plugged into a windows 10 64bit pc and just worked. It was also nicely packaged. Very pleased.

Good quality and works well

Good product works well on win7 and win10

Powers up but loopback test no comms, only saw a transient on the Tx/Rx leds when disconnecting.