03.08.2020, 09:35
(25.06.2020, 11:10)admin Wrote: You need an external pull-up resistor (around 10kohms) between +24V and the input. Most open drain outputs are rated up to 30V but check the device that you want to connect.Thank you for replay. As far as I understood your solution assumes that signal will be inverted.
Another one solution is to use relay module with 24VDC coil. Coil is connected to +24V and to the open collector input. Relay will commute +24V to CANx-UIO16 input.
In my case I have changed a connections scheme of modules I have.
One of modules I have is VALSENA-DIN32 Modbus controller (aka advanticsys-DIN32). And it is designed to input exact open collector signals. But it seems it needs some additional programming, because of for now it does not work properly with modbus.