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convert rs232 to rs485 in BL4S200

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I am using BL4S200. I would like to convert one RS232 (3 WIRE) to RS485 port. How can I do it? I got one RS232/RS485 converter, but it doesn't work. I know one RS485 existing on BL4S200, but I need second RS485 for a slow device. Anybody knows that?
asked Apr 7, 2016 in Rabbit Software by yang New to the Community (3 points)

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1 Answer

+1 vote
I've used this one from B&B Electronics in the past with the RCM5700 and the RS232 board from the advanced dev kit to implement BACnet MS/TP over RS485. It does auto switching and can be supplied from an external 12V PSU when no hand shaking lines are available to provide power (3 wire).


answered Apr 8, 2016 by petermcs Veteran of the Digi Community (1,130 points)