Network Router User Manual

Contents
iv VersaMax™ System Genius® Network Interface Unit User's Manual– November 2000 GFK-1535A
Autoconfiguration of the Genius NIU and I/O Station........................................ 4-10
How Autoconfiguration Handles Equipment Changes........................................ 4-13
Chapter 5 Datagrams .............................................................................................. 5-1
Datagram Types.................................................................................................. 5-2
Read Map ........................................................................................................... 5-3
Read Map Reply.................................................................................................. 5-3
Report Fault Datagram Format ............................................................................ 5-4
Configuration Data.............................................................................................. 5-6
Set NIU Operating Mode................................................................................... 5-20
Chapter 6 Redundancy............................................................................................ 6-1
CPU/Bus Controller Redundancy......................................................................... 6-2
Using the NIU in a Genius Bus Redundancy System............................................ 6-3
Appendix A Operation of the Genius Bus..................................................................A-1
Electrical Interface ..............................................................................................A-2
Serial Bus Waveforms.........................................................................................A-3
Maximum Bus Length.........................................................................................A-4
Serial Data Format ..............................................................................................A-6
Genius Transceiver Electrical Specification .........................................................A-7
Bus Errors...........................................................................................................A-7
Appendix B Performance Data ..................................................................................B-1