Hi. I purchased this rs485 relay controller. It works very well (I can switch relays on/off, etc), but I am unable to change either the baud rate or the address offset.Here are my ...

Hi. I purchased this rs485 relay controller. It works very well (I can switch relays on/off, etc), but I am unable to change either the baud rate or the address offset.

Here are my steps:
1. Connect using default (9600)
2. Send command to change the baud rate (to 19200)
3. Read the baud rate. (Reads as 4, which is the code for 19200, which is what I expect)
4. I can continue to talk to the device at 9600 (but not 19200)
5. Power cycle

6. Connect at 19200 (this doesn't work)
7. Connect at 9600 (this does work)
8. Read the baud rate (Reads as 4, which is the code to 19200)

I would expect for step 6 to work, but it does not. I get the same behavior with the offset address.

Thank you,
Andy