Table Of Contents - Procon MelcoBEMS MINI Installation Manual

Contents
Preface ............................................................................................................................................................................. i
Safety warnings ............................................................................................................................................................ i
Disclaimer ..................................................................................................................................................................... i
Amendment Register ..................................................................................................................................................... ii
1. Safety precautions ................................................................................................................................................ 4
2. Overview ................................................................................................................................................................ 5
3. DIP switch settings ............................................................................................................................................... 6
3.1. RS-485 Node address .................................................................................................................................... 6
3.2. RS-485 communication settings ..................................................................................................................... 6
3.3. Protocol selection ........................................................................................................................................... 7
3.4. Deadband mode ............................................................................................................................................. 7
4. Deadband Mode .................................................................................................................................................... 8
4.1. Settings .......................................................................................................................................................... 8
4.2. Operation........................................................................................................................................................ 8
4.3. Initialisation..................................................................................................................................................... 9
5. Setpoint Offset .................................................................................................................................................... 10
5.1. Settings ........................................................................................................................................................ 10
5.2. Operation...................................................................................................................................................... 10
6. RS-485 termination ............................................................................................................................................. 12
7. Installation ........................................................................................................................................................... 13
7.1. Physical connection ...................................................................................................................................... 13
7.2. Power supply ................................................................................................................................................ 13
7.3. Modbus connections .................................................................................................................................... 13
7.4. Unit type selection ........................................................................................................................................ 13
8. Status LEDs ........................................................................................................................................................ 14
8.1. AC ACK ........................................................................................................................................................ 14
8.2. RS-485 ACK ................................................................................................................................................. 14
9. BACnet ................................................................................................................................................................ 15
9.1. BACnet MS/TP ............................................................................................................................................. 15
9.2. Object types supported ................................................................................................................................ 15
9.3. Object list...................................................................................................................................................... 16
10. Modbus connection ............................................................................................................................................ 17
10.1. Modbus background ..................................................................................................................................... 17
10.2. Modbus registers .......................................................................................................................................... 17
10.3. Modbus connections .................................................................................................................................... 17
11. Modbus tables - Air-To-Air systems ................................................................................................................. 19
11.1. Holding registers .......................................................................................................................................... 19
11.2. Input registers ............................................................................................................................................... 21
11.3. Discrete Inputs ............................................................................................................................................. 21
11.4. Coils ............................................................................................................................................................. 21
Modbus tables - Air-To-Water systems ..................................................................................................................... 22
11.5. Holding registers .......................................................................................................................................... 22
11.6. Input registers ............................................................................................................................................... 34
11.7. Coils ............................................................................................................................................................. 40
11.8. Discrete Inputs ............................................................................................................................................. 41
Appendix A - Compatible Air-To-Air units ................................................................................................................. 44
Appendix B - Compatible Air-To-Water units ............................................................................................................ 45
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