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ED15117

Summary of Contents for ED 15117

Page 1: ...117 Date April 2010 Supersedes New MagnitudeTM Chiller Unit Controller Protocol Information BACnet Networks MS TP IP Ethernet LONWORKS Networks Daikin McQuay Magnitude Magnetic Bearing Centrifugal Chi...

Page 2: ...0 CAPACITY LIMIT SETPOINT NETWORK 30 CHILLER ENABLE 31 CHILLER ENABLE OUTPUT 31 CHILLER ENABLE SETPOINT 32 CHILLER CAPACITY LIMITED 32 CHILLER LOCAL NETWORK 34 CHILLER LOCATION 34 CHILLER MODE 35 CHIL...

Page 3: ...RE IDENTIFICATION MINOR VERSION 61 UNITS 61 Alarms BACnet 63 ALARM CLASSES 63 BACNET ALARM HANDLING 63 Clearing Alarms BACnet 65 BACNET ALARM MESSAGES 65 Alarms LONWORKS 67 CURRENT ALARM 67 Clearing A...

Page 4: ...l Networks www ashrae org LonMark Interoperability Association 078 0120 01G LonMark Layers 1 6 Interoperability Guidelines Version 3 4 www lonmark org LonMark Interoperability Association 078 0120 01G...

Page 5: ...nd LONWORKS BACnet Protocol BACnet is a standard communication protocol for Building Automation and Control Networks developed by the American National Standards Institute ANSI and American Society of...

Page 6: ...vice Object Name W Magnitude 3 Magnitude 3 Magnitude 3 N A Max Master W N A 127 N A N A Max Info Frames W N A 5 N A N A APDU Retries W 3 3 N A N A APDU Timeout W 3000 3000 N A N A Receive Heartbeat 1...

Page 7: ...es the object type The second part identifies the instances of that particular object type the last 22 bits of the 32 bit BACnet Object Identifier The object identifier is shown in the data points lis...

Page 8: ...et communication module as soon as the change is received The allowable range of values for the device object instance will be 0 to 4194302 The value 4194303 is reserved by BTL for reading a device s...

Page 9: ...be changed via the unit controller OITS panel Device Object Properties The device object contains many other informative properties as shown in Table 1 Items in bold are configurable via the BACnet ne...

Page 10: ...Range 1 127 Unsigned Max Info Frames 63 5 Range 1 5 Unsigned Device Address Binding 30 Sequence of BACnetAddressBinding Database Revision 115 1 Unsigned Local Time 2 57 variable read from the control...

Page 11: ...anel The BACnet communication module reads only those parameters relevant to the selected data link layer During initialization the BACnet communication module must read a complete set of valid parame...

Page 12: ...e is received Changing the UDP Port may affect the operation of other BACnet devices on the network This parameter can only be accessed and configured via the unit controller OITS panel Default Gatewa...

Page 13: ...as the change is received Changing the MAC address may affect the operation of other BACnet devices on the network The allowable range of values for the MAC address is 0 127 Since the BACnet communic...

Page 14: ...tion to BACnet is restored A password of 1234 is required ReinitializeDevice Reset When the BACnet Communication module is capable of receiving a network ReinitializeDevice command to reboot itself co...

Page 15: ...k variables to access unit data points The controller uses LONWORKS Standard Network Variable Types SNVT from the profile Some data points can be adjusted input network variables nvi read write attrib...

Page 16: ...ive connections at each node These features greatly simplify installation and reduce network commissioning problems Additional nodes may be added with little regard to existing cable routing Free Topo...

Page 17: ...ength Maximum Cable Length 24 AWG 820 ft 250 m 1476 ft 450 m 22 AWG 1312 ft 400 m 1640 ft 500 m 16 AWG 1640 ft 500 m 1640 ft 500 m The longest cable path between any possible pair of nodes on a segmen...

Page 18: ...configuration All device addresses have three parts The first part is the Domain ID designating the domain Devices must be in the same domain in order to communicate with each other The second part is...

Page 19: ...s Chiller for a LONMARK standard network variable or McQuayChiller for a proprietary variable The Resource Files define the format of how these McQuay specific variables are displayed when using a too...

Page 20: ...the respective BACnet or LONWORKS Protocol Point Summary tables These data points are also shaded in the comprehensive tables so that you can distinguish them from the rest of the data points in the t...

Page 21: ...ed in the Alarms section tables If the Present_Value displays a zero there are no active alarms LONWORKS Magnitude Chiller Unit Controllers may have their alarms monitored by one of two methods 1 by u...

Page 22: ...4 Preshutdown 5 Service Compressor Average Current 40 R AI 9 0 2000 amps less for some models Compressor Discharge Refrigerant Pressure 40 R AI 81 0 to 410 0217 PSI Compressor Discharge Refrigerant Te...

Page 23: ...abled 60 R BI 5 0 OFF 1 Run Allowed Units 61 W MSV 4 1 English IP 2 Metric SI Default English Alarm Digital Output 29 R BI 10 0 No Alarm 1 Alarm Alarm Faults 64 R AV 901 32 Cmp1LowEvapPress 33 Cmp1HiC...

Page 24: ...1EvapWtrFlwLoss 96 Cmp1CondWtrFlwLoss Alarm Problems 63 R AV 900 11 Cmp1LoEvapPressInhibitLoading 12 Cmp1EvapFreezeProtect 13 Cmp1CondFreezeProtect 14 Cmp1HiDischTemp 27 ChillerEvapPmp1Flt 28 ChillerE...

Page 25: ...CHLR_PRESHUTDN 4 CHLR_SERVICE Compressor Average Current nvoCurrent 40 SNVT_amp 1 0 2000 Amperes less on some models Compressor Discharge Refrigerant Pressure nvoCmpDisRefPres 40 SNVT_press 30 0 to 41...

Page 26: ...to 212 F 40 C to 100 C Run Enabled nvoChillerstat 60 SNVT_chlr_stat 127 0 Off 1 Run Allowed Current Alarm nvoAlarmDescr 67 SNVT_str_asc 36 31 Character Alarm Descriptor Object Status nvoStatus 57 SNV...

Page 27: ...it nciCapacityLim 29 SCPTlimitChlrCap 81 0 to 100 100 Chiller Enable nciChillerEnable 31 SCPTpwrUpState 73 0 Request Chiller Off 1 Request Chiller Auto run 0 Cool Setpoint nciCoolSetpt 49 SCPTCoolSetp...

Page 28: ...in effect See Chiller Mode Output and Chiller Mode Setpoint Network The default mode is Cool There are three possible setpoints See Cool Setpoint Network Heat Setpoint Network and Ice Setpoint Network...

Page 29: ...t Value N A N A CharacterString N A N A BACnet Object Identifier Property Object Type Type Enumeration Instance Property Name Property Enumeration Device 8 Variable Application_Software_Version 12 Obj...

Page 30: ...Value 2 1 Present Value 85 Object Name ActiveCapacityLimit LonWorks LONWORKS Name Profile SNVT Type SNVT Index SNVT Size SCPT_Reference SCPT Index nvoCapacityLim output Chiller lev_percent 81 two byte...

Page 31: ...State Value Chiller Enable 0 unused Request Chiller Off 1 unused Request Chiller Auto run 1 0xff unused Invalid Chiller Enable Output This read only network variable indicates if operation of the chil...

Page 32: ...Chiller Switch 95 two bytes NA NA Valid Range State Value Chiller Enable 0 unused Request Chiller Off 1 unused Request Chiller Auto run 1 0xff unused Invalid Chiller Capacity Limited This read only n...

Page 33: ...gned in_alarm 1 offset 0 unsigned run_enabled 1 offset 1 unsigned local 1 offset 2 unsigned limited 1 offset 3 unsigned chw_flow 1 offset 4 unsigned condw_flow 1 offset 5 The last two bits offset 6 ar...

Page 34: ...of this data point is part of the Chiller Status network variable LONWORKS Name Profile SNVT Type SNVT Index SNVT Size Data Type nvoChillerStat local Chiller chlr_status 127 3 bytes Structure Property...

Page 35: ...to 0 then this function is disabled and communication loss is never detected Measurement Units Data Type Usable Range Default Value HVAC Mode NA Unsigned Integer Enumerated 3 Cool LONWORKS LONWORKS N...

Page 36: ...t used for this data point Only the following enumerations are used If a value other than those listed below is written the LONWORKS communication module writes HVAC_COOL to the unit controller Value...

Page 37: ...Object Name UnitStatus Property Values 1 Off 2 Start 3 Run 4 Pre shutdown 5 Service LONWORKS Chiller Status includes the Run Mode The Run Mode is defined as Off Start Run Pre shutdown and Service This...

Page 38: ...monitored remotely Limited 1 Chiller conditions may exist that prevents the Chiller from reaching setpoint 0 Chiller is not restricted from attempting to reach setpoint CHW_flow 1 Chiller Water flow...

Page 39: ...Values 0 Normal 1 Clear Alarm LONWORKS LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nviClearAlarm McQuayChiller SNVT_switch 95 two bytes Valid Range State Value Clear Alarm 0 unused No Alarm 1...

Page 40: ...rage voltage of the compressor motor There is a separate output for each compressor LONWORKS uses the Compressor Select variable Measurement Units Data Type Usable Range Default Value Electric Voltage...

Page 41: ...F 40 125 C NA BACnet Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 63 Present Value 85 Object Name C1Comp1DischargeTemp...

Page 42: ...k variable indicates the current power of the compressor motor BACnet uses a separate variable for each compressor LONWORKS uses the Compressor Select variable Measurement Units Data Type Usable Range...

Page 43: ...ature 41 Compressor Discharge Saturated Refrigerant Temperature 41 Compressor Percent RLA 42 Compressor Power 42 Compressor Run Hours 42 Compressor Starts 43 Compressor Suction Refrigerant Temperature...

Page 44: ...Property Name Property Enumeration Analog Value 2 50 Present Value 85 Object Name C1Comp1SuctSatTemp LONWORKS LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoSatSuctRefTmp McQuayChiller SNVT_t...

Page 45: ...the current temperature of the water entering the condenser Measurement Units Data Type Usable Range Default Value Temperature F C BACnet Real LONWORKS Fixed Point Scalar signed long 40 to 257 F 40 to...

Page 46: ...Type Usable Range Default Value Temperature F C BACnet Real LonWorks Fixed Point Scalar signed long 40 to 257 F 40 to 125 C NA BACnet Object Identifier Property Identifier Object Type Type Enumeratio...

Page 47: ...ct Name Cond1RefPressure LONWORKS LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoCondRefPres McQuayChiller SNVT_press 30 two bytes Note The units for SNVT_press US is inches of water column T...

Page 48: ...ommanded On or Off See Pump Select Measurement Units Data Type Usable Range Default Value Flow State NA BACnet Enumerated LONWORKS Structure See Below NA BACnet Pump 1 Object Identifier Property Ident...

Page 49: ...n If nciDefaults 1 then nviCoolSetpt retains the last valid value at the time power is restored Refer to the Magnitude Chiller Unit Controller Operation Manual for suitable variable values Loss of com...

Page 50: ...iDefaults Chiller switch 95 two bytes SCPT_DefaultBehavior 71 Valid Range State Value Default Values 0 unused Use Default nci Values 1 unused Use Last Valid Values Evaporator Entering Water Temperatur...

Page 51: ...larm 1 offset 0 unsigned run_enabled 1 offset 1 unsigned local 1 offset 2 unsigned limited 1 offset 3 unsigned chw_flow 1 offset 4 unsigned condw_flow 1 offset 5 The last two bits offset 6 are not def...

Page 52: ...ue 85 Object Name EvapPump2OperHours LONWORKS LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoEvapPumpHrs McQuayChiller SNVT_count_f 51 two bytes Evaporator Pump Status This read only network...

Page 53: ...ame Profile SNVT Type SNVT Index SNVT Size nvoEvapFlowRate McQuayChiller SNVT_flow 15 two bytes File Directory Address This read only network variable reports the starting address of the configuration...

Page 54: ...pe Type Enumeration Instance Property Name Property Enumeration Analog Input 0 150 Present Value 85 Object Name HeatRecLvgWaterTemp LONWORKS LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoLvg...

Page 55: ...tpoint from the network It sets the temperature of the Leaving Chilled Water when the chiller is operating in the Ice Mode Measurement Units Data Type Usable Range Default Value Temperature F C BACnet...

Page 56: ...ault Value Elapsed Time seconds BACnet Unsigned Integer LONWORKS Fixed Point Scalar unsigned long 0 6553 4 sec 0 no automatic update LONWORKS LONWORKS Name Profile SNVT Type SNVT Index SNVT Size SCPT_...

Page 57: ...elds all other status fields are not supported invalid_request Set to one if an unsupported request code is received on the nviRequest input network variable invalid_id Set to one if a request is rece...

Page 58: ...lowing functions are supported RQ_NORMAL If the specified functional block was in the disabled or overridden state this request cancels that state and returns the functional block to normal operation...

Page 59: ...le object for remote control not supported 15 RQ_PROGRAM Enable programming of special configuration properties not supported 16 RQ_CLEAR_RESET Clear reset complete flag reset_complete not supported 1...

Page 60: ...variables that use Receive Heartbeat are nviCapacityLim nviChillerEnable nviCoolSetpt nviHeatSetpt nviIceSpt nviMode Measurement Units Data Type Usable Range Default Value Elapsed Time seconds 0 1 BA...

Page 61: ...nication module firmware Measurement Units Data Type Usable Range Default Value Version Number NA Structure 0 255 1 LONWORKS LonWorks Name Profile SCPT Reference SCPT Number SCPT Size nciDevMajVer Nod...

Page 62: ...62 ED 15117 Object Name Units Property Values 1 English Inactive 2 Metric Active...

Page 63: ...ts in the BACnet Communication Module be polled for alarm notification One object indicates Warning Alarms one indicates Problem Alarms and one indicates Fault Alarms The Analog Value objects return a...

Page 64: ...AVFaultAlarm Alarm Digital Output The Alarm Digital Output method requires that one Binary Output object in the BACnet Communication Module be polled for alarm notification This object indicates wheth...

Page 65: ...rn 9 ChillerLiqLn2RefTempSenWarn 6 ChillerCondEntTempSenWarn 10 ChillerSoftwareProbWarn 7 ChillerCondLvgTempSenWarn Problems 11 Cmp1LoEvapPressInhibitLoading 28 ChillerEvapPmp2Flt 12 Cmp1EvapFreezePro...

Page 66: ...7 Cmp1DischTempSenFlt 55 Cmp1VFDLowDCBusVolt 88 Cmp1MotorGapTempSenFlt 56 Cmp1VFDHiDCBusVltRunning 89 Cmp1RotorPmpTempSenFlt 57 Cmp1VFDHiDCBusVltRegen 90 Cmp1BearingOrbitSurgeFlt 58 Cmp1VFDHiSteeringB...

Page 67: ...ndition Current Alarm This network output variable indicates the current alarm The type of alarm is included in the text string Alarm messages are listed in Table 9 The unit controller can accommodate...

Page 68: ...oftwareProbWarn 8 ChillerLiqLn1RefTempSenWarn 5 ChillerEvapEntTempSenWarn 9 ChillerLiqLn2RefTempSenWarn 6 ChillerCondEntTempSenWarn 10 ChillerSoftwareProbWarn 7 ChillerCondLvgTempSenWarn Problems 11 C...

Page 69: ...Cmp1VFDPrechargeFault 87 Cmp1DischTempSenFlt 55 Cmp1VFDLowDCBusVolt 88 Cmp1MotorGapTempSenFlt 56 Cmp1VFDHiDCBusVltRunning 89 Cmp1RotorPmpTempSenFlt 57 Cmp1VFDHiDCBusVltRegen 90 Cmp1BearingOrbitSurgeF...

Page 70: ...dule is a microprocessor based controller designed to operate McQuay International chillers and be integrated into BACnet building automation systems BACnet Standardized Device Profile BACnet Operator...

Page 71: ...esirable for optimum performance on the network 2 DM TS B is not required for B ASC 3 DB RD B will be implemented such that the BACnet card is reset without resetting the chiller controller The chille...

Page 72: ...inary Input Description Reliability Inactive_Text Active_Text Binary Output Description Reliability Inactive_Text Active_Text Relinquish_Default Binary Value Description Reliability Inactive_Text Acti...

Page 73: ...state Value Description Reliability State_Text Priority_Array Relinquish_Default Present_Value2 Relinquish_Default 1 Though the BACnet communication module supports the following object types not all...

Page 74: ...ding Yes No Networking Options Router Clause 6 Routing Configurations Annex H BACnet Tunneling Router over IP BACnet IP Broadcast Management Device BBMD Registrations by Foreign Devices Yes No Charact...

Page 75: ...mpressor Discharge Saturated Refrigerant Temperature 22 25 Compressor Percent RLA 22 25 42 Compressor Power 22 25 42 Compressor Run Hours 22 25 42 43 Compressor Select 26 43 Compressor Starts 22 25 43...

Page 76: ...Minimum Send Time 27 56 MSTP 5 N Network Clear Alarm 27 68 network variable 15 Neuron 18 Node ID 18 Notice 4 Notification 21 O Object Request 27 58 Object Status 26 57 Outdoor Air Temperature 23 26 59...

Page 77: ...This document contains the most current product information as of this printing For the most up to date product information please go to www mcquay com www mcquay com 800 432 1342 ED15117 77...

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