Multi-IO-Interface over RS485

[CADdy]

Hi gents,

is it possible to use this multi-IO-Interface with UCCNC? It is connected via RS485 to the PC.

Or would have to program something special for that?

Peter

[ger21]

It says Modbus, so yes, you can communicate with it via Modbus in UCCNC.
But, I don't think you can use it like a normal breakout board, where you just assign ports and pins.

[CADdy]

Hi Gerry,

I didn't want to use it as a BOB. I want to use it to read signals from an ATC spindle (tool locked, clamp open, clamp closed and so on) and to control pneumatic valves.

The other way is, I buy an UC300ETH controller. But then I need a new license for UCCNC. I think, it is not possible to transfer my license to the UC300ETH.

Peter

[dezsoe]

This card seems to be good for what you want to use it. Do you have a link to this card?

[CADdy]

Hi dezsoe,

we make a deal: I give you the link and you give me a tip, how to use this card with UCCNC

https://de.aliexpress.com/item/32881049 ... LI3Hp&mp=1

Peter

[fixebr]

a manual should go to this board, which indicates which command should be sent to which register to turn on a specific output, or in which register the state of the board's inputs is located.
If there is no manual, write to the seller on Ali, let you watch.
Install the QModBus program, connect via usb-rs485 (or eth-rs485) to the computer and try sending the read register command according to the manual.
Then, in UCCNC, you type commands in the macro that turn on the outputs and read their values. There is a version of modbusmaster for this - you create a connection there to this pluggable register, and then control by connection number.

[dezsoe]

Hi Peter,

I couldn't find any documentation. It will be a nice job... If you know the parameters then the ModbusMaster plugin can handle the connection.

[CADdy]

Thanks for your answers. I'll order one of these interfaces and hope I can make it work. Let's see...

Peter

[CADdy]

On this page there are a few address and register details:

https://www.aliexpress.com/i/32879424433.html

You must click "show all".
It is of course very difficult to program something without documentation.

Peter

[dezsoe]

Nice manual! (But more than nothing.)