solved in eth phy instead? tell me more?

also curiou show many we can daisy chain with this, is it just one step or a switch is needed?

What is the use-case for the SYNC pin on the revpi connect 4?

Please see picture attached:

- Is 0V the same net as the GND symbol on the RS-485 connector

- Please clarify the use-cases for the chassi-gnd, i.e. when and when not to use it


Thanks

Dirk,

What did you mean by "Only use GND if you really know what you are doing." ?

please also help specify the voltage spec for the rs485 phy

it's not clear from the schematic that has both 3V3 + "VCCIO", see below:

ping!
Does kunbus provide a RS485 with galvanic isolation?

Hi,

Are the schematics available for the serial gateways?
Mainly interested in the Fieldbus Gateway.

The manual reads that Pin 1 is 5V fused, but can't find any info on how much current it can source, nor if the supply out is isolated.


Thanks

With 'PiCtory', you can be both master or slave.
If you happen to run two slaves with on the same bus, with same address, how is this handled today?

My idea was that we could have a graceful error-handling to resolve duplicate address conflicts.
It would be enough with the error-handling, then it's ...

Hi!

There is a service in your kernel/OS to let the revpi connect be a modbus rtu master.
Do you happen to have any implementations to run firmware-upgrades (to a connected rs485 slave) over modbus?

Hi Dirk,

I just found the schematic, I thought pin-1 was 5V supply.

For RS485 devices that require to be bus-powered (similar to profibus).
What would you recommend?

Does kunbus provide a module with RS485 and/or profibus with power-supply and signaling + galvanic isolation?


Thanks