Dear All,
I have also a question aubout serial communication - but more basic level - I am sorry.
We are trying to control a device (ECOR HD 16x1 Multiviewer) via RS 485 from WD.
Normally the device is controlled by a hardware control panel (EKB 500).
Our setup:
We have WD Pro, a Digitus USB > RS485 interface.
The Interface ist regognized bby Win. We set up a connection in the Connection Manager (ID 1).
We got the RS 485 command list from the manufacuturer. See as attchment.
We tried to send commands from the "COM Stream" Node with a Text input Node.
SEcond try was the " COM Port Output" Node with Fader INput and Button for the If/else.
This would be my first Question: Which node should I use?
We send the following Command to e.g. change The selcted camera to camera 1 in device (ID 1):
85 00 01 4b 00 4c
or like in the manufactures list:
0x85 0x00 0x01 0x4b 0x00 0x4c
or with carriage returns
[CR] 0x85 [CR] 0x00 [CR] 0x01 [CR] 0x4b [CR] 0x00 [CR] 0x4c
or
0x85 [h0D] 0x00 [h0D] 0x01[h0D] 0x4b [h0D] 0x00 [h0D] 0x4c [h0D]
As start bit I tried 0/1 as Stop Bits 1/FF/7f.
Rightnow it is a big guessing game to make it work, because I don´t find more Information about the right syntax.
I would be happy If somebody with more experience could give me some hints to make this work.
Thanks a lot!! Best, Judith