| Ich nutze: C-Control II Unit, C164CI-ControllerBoard, C-Control II Station, CC2-Application-Board, CC2-StarterBoard, CC2-ReglerBoard, OSOPT V3.1 |
> I'm using C-Control II Station and i got external keyboard wit RS-485 interface.
> Can i use converter rs-232 to rs-485, connected to the swcom ports and swcom.c2 driver ?
You don't need a converter from RS232 to RS485.
SWCOM is TTL. Instead a MAX232 you will need a MAX485 RS485-Transceiver.
You will need an extra I/O-port to control the MAX485.
High for sending and low for receiving.
Here the Link to the MAX485-Datasheet.
You must connect RO to SWCOM-RxD, DI to SWCOM-TxD, DE and RE to a free I/O-Port.
André H.
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Re: RS-485 (von Gonzo - 3.04.2008 15:15)Re: RS-485 (von RS-485 driver - 17.10.2008 15:49)