Echelon IzoT BACnet Developes Manual de usuario descargar pdf (Pagina 3)

Contents

Getting Started with BACnet ........................................................... 4

Hardware Requirements ............................................................................... 5

Compiling the BACnet Sample Projects ................................................ 5

Using BACnet ...................................................................................... 7

BACnet Terminology...................................................................................... 8

Differences between BACnet and LONWORKS .......................................... 9

BACnet Read Operations ...................................................................... 10

Write Operation Resolution .................................................................. 10

BACnet Interface Overview .................................................................. 12

Data Flow during a LONWORKS Write to a Network Variable ........ 13

Data Flow during a LONWORKS Read of a Network Variable ......... 14

Data Flow during an outgoing Network Variable Update .................. 14

Data Flow during a BACnet Write to a BACnet Object ...................... 14

Data Types and BACnet to Lon Mapping ............................................ 14

BACnet Instance Numbering ............................................................... 14

BACnet Object to LONMARK SNVT Mapping – The “Mapping Table”15

BACnet Object Properties ..................................................................... 15

Device ID and Device Name ................................................................. 16

Mapping Table Structure ...................................................................... 16

Requirements to add the BACnet Stack to a FT 6050 application ........... 16

Mapping BACnet Objects to Network Variables ....................................... 17

Mapping BACnet Objects to non-Network Variables ................................ 17

Complex Mapping ........................................................................................ 18

Mapping UNVTs .................................................................................... 18

Device Object Instance and Name .............................................................. 18

BACnet Test Tools ....................................................................................... 18

Appendix A Glossary ....................................................................... 21

Using BACnet and LONWORKS with the FT 6000 EVK 3

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Echelon IzoT BACnet Developes Manual de usuario Pagina 3