... together. To create a network the devices must use a RS-485 network and have a unique slave address. References: ... 9. What are RS-232, RS-422 and RS-485 and how are they different? These are standards for serial ... duplex) and has a distance capacity of 4000 meters. RS-485 can address up to 32 slaves using either a two wire (half duplex) or ...

Story - Tim Young - 2006-06-01 22:05 - 3 comments

    This handbook is a collection of programming overviews, notes, helps, cheat sheets and whatever that can help you (and me) program an Allen Bradley PLC. If you have experience with AB then please contribute . ...

Book page - Tim Young - 2018-01-05 16:36 - 89 comments

... 3 communication ports. The one of communication ports is RS-485, whose transmitter/receiver has 12 byte FIFO, communication speed up to ...

weblink - Tim Young - 2008-07-16 16:45 - 0 comments