dIXEL IPC400D SERIES - RS485 Master Serial Output Connection with Modbus Protocol

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USER MANUAL – Release 1.2 of 01/01/2010 Page 65 of 191

Version: 02/03/2010

12.2 RS485 MASTER SERIAL OUTPUT CONNECTION WITH MODBUS PROTOCOL

Using the RS485 MASTER serial output it is possible to connect up to a maximum of 100 devices

Main Page

Default Chapter2
- Table of Contents2
General Recommendations10
Generalities11
Ipc400D Series Features13
Analogue - Digital Inputs/Outputs Configurations14
- Rl1- Rl15 Digital Outputs Configuration16
- Analogue Inputs Pb1 - Pb10 Configuration20
- Configuration of the Out1 / Out4 Proportional Outputs21
- How to Configure the Inputs and Outputs (File Io.conf)22
- Further Connections23
5 Parameters in Table Form49
Ipro.chill Programmable Controller49
Ipro.chill Wiring Diagrams50
- Ipc415D Model Hardware Resources51
- Ntc/Ptc Probes Analogue Inputs52
  - V Ratiometric Pressure Transducers Analogue Inputs53
  - Servomotors Control 0÷10V / 4÷20Ma Proportional Outputs54
- Proportional Outputs Configured for Piloting an External Relay55
Iproex60D Expansion Module56
Iproex60D Expansion Module Wiring Diagrams57
- Expansion Module Connection to the Programmable Unit58
- Electronic Thermostatic Valve Management Driver59
- Unipolar/Bipolar Valves Driver Connection Mode60
- Xev20D Electronic Thermostatic Driver Wiring Diagrams61
11 Xev20D Electronic Thermostatic Driver Wiring62
- Xev20D Driver Module Connection to the Programmable Unit62
- Ntc / Ptc / Pt1000 Probe Analogue Inputs63
- Rs485 Serial Communication Peripherals Connection64
12 Rs485 Serial Communication Peripherals65
- Rs485 Master Serial Output Connection with Modbus Protocol65
- Rs485 Slave Serial Output Connection with Modbus Protocol66
Remote Connection Via Modem67
- Pc Connection from Remote Via Internal Serial Modem68
14 Connection to the Ipro.chill Via the Network Port 6869
- Connection Via Intranet69
Using the Usb Port70
User Interface71
- How to Modify the Information Present in the Main Screen72
- Set Key73
- Probes Key74
- Alarm Key76
- Circ Key78
- Service Key80
  - Time/Time Bands82
- Compressors83
  - Alarms Display84
Defrost86
- I/O Status87
- Heat Recovery88
- Free-Cooling89
  - Screw Compressor90
  - Unit Switch off91
17 Selection - Working Mode - Enabling - Switch-On91
- Change over Function92
- Cooling – Heating Mode Selection from Keyboard93
19 Condensing Unit Working Mode94
- Working with Digital Input Configured as Temperature Control Request94
20 Compressors Temperature Control95
- Compressor Temperature Control in Heating Mode95
21 Choice of the Type of Temperature Control96
- Compressors Proportional Temperature Control Graphics (Unit)96
- Circuit N° 2 Compressors Proportional Temperature Control Graphics97
- Compressors Neutral Zone Temperature Control Graphics98
- Working Description99
23 Dynamic Set-Point Function100
- Dynamic Set-Point Working Graphics100
- Compressors Temperature Control Rotation Control101
- Selection of the Circuit for Saturation102
Compressors Switch-On103
- Description of Part Winding Start-Up104
- Star Delta Start-Up of a Partialised Compressor105
28 Partialisations Working107
- Start-Up with Partialised Compressor / Idle Start-Up107
- Compressor Liquid Injection Solenoid Valve Function108
Compressors in Tandem110
34 Evaporator Water Pump Working111
Evaporator Water Pump Rotation111
42 Condenser Pump Anti-Freeze Management112
Water Pump Maintenance Request Function112
- Hot Start Function113
40 Condenser Water Pump Working114
Condenser Water Pump Rotation114
- Water Pump Maintenance Request Function115
44 Switch-On/Off Working with Pump-Down116
- Pump-Down Function with Circuit Low Pressure Pressure Switch116
- Working Examples117
- Pump-Down Active in Shut-Down and in Re-Start, Based on the Analogue Input Relative to the Evaporation Pressure118
Circuits Unloading119
- Unloading from Condensation High Temperature Transducer120
- Unloading by Low Pressure Transducer121
- Working in Unloading Mode Notes122
- If the Pwm/ 0÷10V Signal Triac Output Is Used123
46 Condensation Fans Regulator124
- Unique or Separate Condensation124
- Proportional Fan Regulator Graphics125
Anti-Freeze/Support Heaters Regulator126
- Support/Anti-Freeze/Boiler Heaters Working Graphics127
- Temperature Control of the Boiler Heaters (Anti-Freeze) Boiler Function128
Anti-Freeze Heaters Working from Digital Input129
- Description of Defrost Parameters132
- Defrost with Condensation Fans134
50 Recovery Function135
Heat Recovery Working from Digital Input135
- Unit with Two Parallel Hydraulic Circuits136
- Heat Recovery Working by Means of Temperature Probe138
52 Heat Recovery Working by Means of Temperature139
- Heat Recovery Side Priority139
Function for Production of Domestic Hot Water140
- Management of the Domestic Hot Water Pump141
  - Continuous Working of the Domestic Hot Water Pump142
- Solar Panels Water Pump143
  - Domestic Hot Water During Working in Winter Mode144
    - 53.7.3 Production of Domestic Hot Water During Working in Summer Cycle145
    - Management of the Refrigerant Load in the Case of Domestic Hot Water Production in the Summer Cycle146
Free Cooling147
- Free-Cooling with External Ventilation Layout148
- Free-Cooling Working in Heating Mode149
- Free Cooling Ventilation Working Mode150
Auxiliary Relay Function151
- Working of the Auxiliary Analogue Outputs (0÷10 Volt)152
Alarms153
- Probe Breakdown154
- Compressor Flow High Temperature Alarm from Digital Input155
- Low Pressure Pressure Switch Alarm156
- Oil Float/Pressure Switch Alarm157
- Condensation Temperature/High Pressure Alarm158
- Cold Side Flow Switch Alarm (Differential Pressure Switch)163
- Hot Side Flow Switch Alarm (Differential Pressure Switch)164
- Supply Fan Circuit Breaker Alarm166
- Domestic Hot Water Pump Flow Switch Alarm167
- Circuit Breaker Alarm168
- Evaporator Water Inlet High Temperature Alarm169
- Condensation Fan Circuit Breaker Alarm170
- Defrost Alarm171
- Pump down Alarm with Low Pressure Transducer in Start-Up177
- Evaporator Water Pumping Unit Circuit Breaker Alarm178
- Unit N. 1 Block General Alarm179
- Unit N. 2 Block General Alarm180
- Compressors Maintenance Alarm181
- Rtc Alarm182
- Network Frequency Alarm183

dIXEL IPC400D SERIES - RS485 Master Serial Output Connection with Modbus Protocol

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