Contents Page
2 Integra Comms Issue 1 Jan 2006
1 Modbus
tm
4
1.1
Modbus
tm
Overview 4
1.2 Input Registers 5
1.3 Modbus
tm
Holding Registers and Integra set up 7
1.4
Analogue Output setting via Modbus 11
2 RS485 Implementation of Johnson Controls Metasys 13
2.1
Application details 13
2.2 Metasys release requirements 13
2.3 Support for Metasys Integration 13
2.4
Support for Crompton Integra operation 13
2.5 Design considerations 13
2.6 METASYS N2 Integra Point Mapping table 14
3 Integra Profibus Interface 16
3.1 GSD file 16
3.2
Floating Point Format 16
3.3
Single Parameter access 16
3.4 Functionality of the PLC Function Block 16
3.4.1
Reading 16
3.4.2
Writing 17
3.5 Common Problems 17
4 The LonWorks Interface 18
4.1 XIF File 18
4.2 Overview and Device Functional Profile 18
4.3
Node Object 19
4.3.1 Network Variables 19
4.3.2 Object Status 19
4.3.3
Configuration Properties 19
4.4 Voltmeter Functional Profile 19
4.4.1 Voltmeter Network Variables 20
4.5
Ammeter Functional Profile 21
4.5.1 Ammeter Network Variables 21
4.5.2 Ammeter Configuration Properties 22
4.6
Energy Meter Functional Profile 23
4.6.1 Energy Meter Network Variables 23
4.6.2 Energy Meter Configuration Properties 23
4.7
Power Meter Functional Profile 25
4.7.1 Power Meter Network Variables 25
4.7.2 Power Meter Configuration Properties 26
4.8
Demand Ammeter Functional Profile 27