Data Aire DAP TM III. LonWorks Protocol Integration Information

Transcription

1 Data Aire DAP TM III LonWorks Protocol Integration Information Data Aire, Inc. 230 West BlueRidge Avenue Orange, California Document Number June 2009 Revision 1.0 Document Page 1 of 14

2 Table of Contents 1 Introduction Overview References Hardware Requirement Required Network Card Lontalk Network Card Installation Network Wiring XIF file Network Variable Summary Status Read/Write Configuration Control Network Variables Description nvoreturntemp NvoDiscTemp (optional) NvoWaterTemp (Optional) nvohumidity nvocoolstageson nvoheatstageson nvohumidifying nvodehumidifying nvovalve (Chilled Water Unit Only) nvohvalve (Optional) nvohitemphistory nvolotemphistory nvohihumhistory nvolohumhistory nvocoolutlz nvoheatutlz NvoChilledUtlz (Chilled Water Unit Only) nvohumidutlz...10 Document Page 2 of 14

3 5.19 nvocomp1runtime nvocomp2runtime nvocomp3runtime nvocomp4runtime nvoheat1runtime nvoheat2runtime nvoheat3runtime nvohumidruntime nvofanruntime nvocondruntime nvodehumruntime NvoESaverRuntime (Optional) NvoChillRuntime (Chilled Water Unit Only) nvoalarm nvifirelimit nvihitemplimit nvilotemplimit nvilodisclimit (Optional) NviWaterLimit (Optional) nvihihumidlimit nvilohumidlimit nvihumdeadband nvihumsetpoint nvitempdeadband nvitempsetpoint nviinhibitcool nviinhibitheat nviinhibithumid nviinhibitdehum nviinhibitfan nvistandby...14 Document Page 3 of 14

4 1 Introduction 1.1 Overview This document defines the Network Variables used by the Data Aire LonWorks protocol SNVT for the Data Air Processor III (DAP TM III) and the information of the Data Aire LonTalk Communication network card for LonTalk integration. 1.2 References Introduction to the LonWorks System Version 1.0, Echelon Corporation, 1999 ShortStack User s Guide Version 2, Echelon Corporation, March 2002 LonMark SNVT Master List, Version 12, June Hardware Requirement 2.1 Required Network Card The LonWorks protocol interface requires a Data Aire LonTalk communication network card to be installed into the DAP III panel. The LontalK card part number is See Figure 1 and 2 for card details. BOARD CONNECTOR Figure 1: Front side of the Data Aire LonTalk Communication Network card Tx and Rx LEDs SERVICE BUTTON Figure 2: Back side of the Data Aire LonTalk Communication Network card Document Page 4 of 14

5 2.2 LonTalk Network Card Installation IMPORTANT NOTE: The DAP III panel supports one network connection at a time therefore only one type of the network card can be installed For LonWorks interface, plug a LonTalk communication network card to the Communication Header J1 of the DAP III Display board. See Figure 3 below for the DAP III Display board with a LonTalk card installed. Before installing the network card, go to Menu 6-1 Unit & Network ID in Group Menu 6 Network to set the unit network ID number. Go to Menu 6-2 Network Protocol to configure to LonWorks. Menu 6-2 is locked menu; refer to the DAP III Operation Manual for the procedure of how to unlock this menu. Turn power OFF, plug the LonTalk card to the communication port J1 on the Display module of the DAP III panel. Turn the DAP III panel back ON; if the DAP III panel recognizes the Lontalk card it will display the card name during the self-test. It is recommended to reset the DAP III panel after changing network protocol or unit ID number. Tx and Rx LED Lon+ Lon_ Communication Header J1 LonTalk Communication card LonWorks TP/FT-10 Network Wiring Connections Figure 3: DAP III Display Board with a LonTalk Network Card 2.3 Network Wiring Data Aire LonTalk Network card complies with Lonworks TP/FT-10 network connections. The 18 AWG or 22 AWG shielded, twisted pair cable is recommended. The network wiring should be wired in the multidrop fashion. See Figure 3 above for the DAP III Lonworks network wiring terminations. Document Page 5 of 14

6 3 XIF file 3.1 The XIF file for Data Aire DAP III Lonworks interface can be downloaded from Data Aire website at: Recommend using this file when commissioning a Data Aire unit Lonworks interface. 4 Network Variable Summary 4.1 Status Network Variable Network Variable Type Description nvoreturntemp SNVT_temp_p Current Return Temperature nvodisctemp SNVT_temp_p Optional Current Discharge Temperature- Optional discharge air sensor required nvowatertemp SNVT_temp_p Optional Current Chilled Water Temperature Optional chilled water temperature sensor required. nvohumidity SNVT_lev_percent Current Humidity nvocoolstageson SNVT_count Cooling Stages on - DX unit only nvoheatstageson SNVT_count Heating Stages on nvohumidifying SNVT_switch Currently Humidifying nvodehumidifying SNVT_switch Currently Dehumidifying nvovalve SNVT_lev_cont Water Valve percent open. This applies to chilled water unit only nvohvalve SNVT_lev_cont Optional Humidifier Valve percent open. Optional modulating humidifier required nvohitemphistory SNVT_temp_p High Temperature Last 24 Hours nvolotemphistory SNVT_temp_p Low Temperature Last 24 Hours nvohihumhistory SNVT_lev_percent High Humidity Last 24 Hours nvolohumhistory SNVT_lev_percent Low Humidity Last 24 Hours nvocoolutlz SNVT_switch Cooling Utilization Last 24 Hours DX unit only nvoheatutlz SNVT_switch Heating Utilization Last 24 Hours nvochilledutlz SNVT_switch Chilled Water Utilization Last 24 Hours This applies to chilled water unit only nvohumidutlz SNVT_switch Humidifier Utilization Last 24 Hours nvocomp1runtime SNVT_time_hour Compressor 1 Runtime DX unit only nvocomp2runtime SNVT_time_hour Compressor 2 Runtime DX unit only nvocomp3runtime SNVT_time_hour Compressor 3 Runtime This only applies to four stages cooling unit nvocomp4runtime SNVT_time_hour Compressor 4 Runtime - This only applies to four stages cooling unit nvoheat1runtime SNVT_time_hour Heater 1 Runtime nvoheat2runtime SNVT_time_hour Heater 2 Runtime nvoheat3runtime SNVT_time_hour Heater 3 Runtime nvohumidruntime SNVT_time_hour Humidifier Runtime nvofanruntime SNVT_time_hour Blower Runtime nvocondruntime SNVT_time_hour Condenser Runtime nvodehumruntime SNVT_time_hour Dehumidifier Runtime Document Page 6 of 14

7 Network Variable Network Variable Type Description nvoesaverruntime SNVT_time_hour Energy Saver Runtime Optional. This applies to energy saver unit only nvochillruntime SNVT_time_hour Chilled Water Runtime This applies to the chilled water unit only. nvoalarm SNVT_state_64 Alarm Status See list below for details 4.2 Read/Write Configuration Network Variable Network Variable Type Description nvifirelimit SNVT_temp_p Fire Temperature Limit nvihitemplimit SNVT_temp_p High Return Air Temperature Limit nvilotemplimit SNVT_temp_p Low Return Air Temperature Limit nvilodisclimit SNVT_temp_p Low Discharge Air Temperature Limit - Optional discharge air sensor required nviwaterlimit SNVT_temp_p Chilled Water Temperature Limit Optional chilled water temperature sensor required. nvihihumidlimit SNVT_lev_percent High Humidity Limit nvilohumidlimit SNVT_lev_percent Low Humidity Limit nvihumdeadband SNVT_lev_percent Humidity Deadband nvihumsetpoint SNVT_lev_percent Humidity Setpoint nvitempdeadband SNVT_temp_diff_p Temperature Deadband nvitempsetpoint SNVT_temp_p Temperature Setpoint 4.3 Control Network Variable Network Variable Type Description nviinhibitcool SNVT_switch Inhibit Cooling nviinhibitheat SNVT_switch Inhibit Heating nviinhibithumid SNVT_switch Inhibit Humidification nviinhibitdehum SNVT_switch Inhibit Dehumidification nviinhibitfan SNVT_switch Inhibit Blower nvistandby SNVT_switch Standby Mode Unit on/off control. See the nvistandby description below for details. Document Page 7 of 14

8 5 Network Variables Description 5.1 nvoreturntemp nvoreturntemp contains the current return air temperature. 5.2 NvoDiscTemp (Optional) nvodisctemp contains the current discharge air temperature. This is an optional nvo, it requires a optional discharge air temperature sensor to be installed to the DAP III controller. 5.3 NvoWaterTemp (Optional) nvowatertemp contains the current chilled water temperature. This is an optional nvo, it requires an optional chilled water temperature sensor to be installed to the DAP III controller. 5.4 nvohumidity nvohumidity contains the current space humidity. 5.5 nvocoolstageson nvocoolstageson contains the current number of cooling stages in use. 5.6 nvoheatstageson nvoheatstageson contains the current number of heating stages in use. 5.7 nvohumidifying nvohumidifying contains the current state of the humidifier. 5.8 nvodehumidifying Humidifier value state Off 0 0 On >0 1 nvodehumidifying contains the current dehumidification state. Dehumidification value state Off 0 0 On >0 1 Document Page 8 of 14

9 5.9 nvovalve (Unit with a chilled water valve) nvovalve contains the current position of the chilled water valve. This nvo only applies to unit with a chilled water valve. 0% = Full closed 100% = Full open 5.10 nvohvalve (Optional) nvohvalve contains the current position of the humidifier valve. This is an optional nvo and only applied to unit with an optional modulating humidifier. 0% = Full closed 100% = Full open 5.11 nvohitemphistory nvohightemphistory contains the highest recorded return air temperature over the last 24 hours nvolotemphistory nvolotemphistory contains the lowest recorded return air temperature over the last 24 hours nvohihumhistory nvohighhumhistory contains the highest recorded humidity over the last 24 hours nvolohumhistory nvolohumhistory contains the lowest recorded humidity over the last 24 hours nvocoolutlz nvocoolutlz contains the average cooling utilization over the last 24 hours nvoheatutlz nvoheatutlz contains the average heating utilization over the last 24 hours NvoChilledUtlz (Unit with chilled water valve) nvochilledwaterutlz contains the average chilled water utilization over the last 24 hours. This nvo only applies to unit with a chilled water valve Document Page 9 of 14

10 5.18 nvohumidutlz nvohumidifierutlz contains the average humidifier utilization over the last 24 hours nvocomp1runtime nvocomp1runtime contains the total runtime for compressor nvocomp2runtime nvocomp2runtime contains the total runtime for compressor nvocomp3runtime (Optional) nvocomp3runtime contains the total runtime for compressor 3. This nvo only applies to DX units which have more than two stages of cooling such as unit with two tandem compressors nvocomp4runtime (Optional) nvocomp4runtime contains the total runtime for compressor 4. This nvo only applies to DX units which have more than two stages of cooling such as unit with two tandem compressors nvoheat1runtime nvoheat1runtime contains the total runtime for heater nvoheat2runtime nvoheat2runtime contains the total runtime for heater nvoheat3runtime nvoheat3runtime contains the total runtime for heater nvohumidruntime nvohumidruntime contains the total runtime for the humidifier nvofanruntime nvofanruntime contains the total runtime for the blower nvocondruntime nvocondruntime contains the total runtime for the condenser. Document Page 10 of 14

11 5.29 nvodehumruntime nvodehumruntime contains the total runtime for dehumidification NvoESaverRuntime (Optional) nvoesaverruntime contains the total runtime for energy saver. This nvo only applies to unit with an optional energy saver configuration NvoChillRuntime (Unit with a chilled water valve) nvochillruntime contains the total runtime for chilled water cooling. This nvo only applies to unit with chilled water valve nvoalarm nvoalarm is a SNVT_state_64 bitfield that contains the current unit alarms. The bits are defined in the following table. Bit Description 0 Water detected under floor: Check probe 1 No air flow: Check belt and motor 2 Dirty filter: Check filters 3 Humidifier problem: Check water pressure 4 Low voltage warning: Check unit 5 Fire stat alarm: Unit shutdown 6 Compressor short cycle warning DX unit only 7 Power problem or unit restart 8 Humidity sensor problem 9 Temperature sensor problem 10 Scheduled maintenance due 11 High pressure/internal overload: Comp 1 DX unit only 12 Low pressure C1: Automatic reset DX unit only 13 High pressure/internal overload: Comp 2 DX unit only 14 Low pressure C2: Automatic reset - DX unit only 15 Smoke detector: Unit shutdown - Optional 16 No water flow: Check pump - Optional 17 Discharge temperature sensor problem - Optional 18 High temperature warning 19 Low temperature warning 20 High humidity warning 21 Low humidity warning 22 Fan motor overload: Check motor amperage - Optional 23 Local alarm #1: See tag inside door Optional 24 Local alarm #2: See tag inside door - Optional 25 Local alarm #3: See tag inside door - Optional 26 Local alarm #4: See tag inside door - Optional Document Page 11 of 14

12 Bit Description 27 Standby pump on: Check primary pump - Optional 28 UPS power on: Check main power supply - Optional 29 Custom alarm #1 - Optional 30 Custom alarm #2 - Optional 31 Custom alarm #3 -Optional 32 Custom alarm #4 - Optional 33 Humidification inhibited - Optional 34 Reheat inhibited - Optional 35 Reheat and humidification inhibited - Optional 36 Low discharge air temperature alarm - Optional 37 Manual override: Check bypass switches 38 High condensate water level Optional on floor models, standard on ceiling models 39 Unit in standby, all functions held off Optional 5.33 nvifirelimit nvifiretemplimit contains the fire temperature limit. The valid range is o F (37-65 o C) nvihitemplimit nvihitemplimit contains the high return air temperature limit. The valid range is o F (21-32 o C) nvilotemplimit nvilotemplimit contains the low return air temperature limit. The valid range is o F (13-24 o C) nvilodisclimit (Optional) nvilodisclimit contains the low discharge air temperature limit. The valid range is o F (7-16 o C). Optional discharge air temperature sensor required. See nvodicstemp above NviWaterLimit (Optional) nviwaterlimit contains the chilled water temperature limit. The valid range is o F (5-15 o C). An optional chilled water temperature sensor required. This is only used when unit has an optional Energy saver chilled water cooling. See nvowatertemp above for details nvihihumidlimit nvihihumidlimit contains the high humidity limit. The valid range is 35-90% nvilohumidlimit nvilohumidlimit contains the low humidity limit. The valid range is 10-65%. Document Page 12 of 14

13 5.40 nvihumdeadband nvihumdeadband contains the humidity deadband setting. The valid range is 1-15% nvihumsetpoint nvihumsetpoint contains the humidity setpoint setting. The valid range is 25-70% nvitempdeadband nvitempdeadband contains the return air deadband setting. The valid range is 1-5 o F (1-2 o C) nvitempsetpoint nvitempsetpoint contains the return air setpoint setting. The valid range is o F (18-30 o C) nviinhibitcool nviinhibitcool contains the current cooling inhibit setting nviinhibitheat Inhibit Cooling value state Inhibit Off 0 0 Inhibit On >0 1 nviinhibitheat contains the current heating inhibit setting nviinhibithumid Inhibit Heating value state Inhibit Off 0 0 Inhibit On >0 1 nviinhibithumid contains the current humidification inhibit setting nviinhibitdehum Inhibit Humidification value state Inhibit Off 0 0 Inhibit On >0 1 nviinhibitdehum contains the current dehumidification inhibit setting. Inhibit Dehumidification value state Inhibit Off 0 0 Inhibit On >0 1 Document Page 13 of 14

14 5.48 nviinhibitfan nviinhibitfan contains the current blower inhibit setting nvistandby Inhibit Blower value state Inhibit Off 0 0 Inhibit On >0 1 nvistandby contains the current unit standby inhibit setting. Use this nvi for unit ON/OFF control. For instance, if the value of this nvi is changed to 2 and the state is changed to 1, the unit will be in standby mode (so called OFF mode) Mode value state On 0 0 Standby >0 1 Document Page 14 of 14