Creating a 485/422 Host...

[GlennP]

Hi,
Long time since I have been here, but I want to make sure I configure correctly for a 485/422 host.  I am guessing the host is defined as the device that transmits the packet of data over the network to each device.

[Jan Axelson]

RS-485 and RS-422 are hardware standards only. They don't address protocols.

An RS-422 network has one driver and up to ten receivers.   

An RS-485 network can have multiple drivers and receivers and can use any protocol to decide who gets to transmit. For example, a designated node might send messages that include a node address, and the addressed sends a response. Or the nodes might transmit in a defined sequence.

[GlennP]

Ah, I am right the 'host' is the PC/Widget sending the data.