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Appendix A: Network Points List for WSHP Open

WSHP Open v3

Integration Guide

BACnet

Modbus

Point Name

Point
Access

Units

Default
Value

BACnet Point Name

BACnet
Object ID

Modbus
Register
Type

Modbus
Register #

Minimum Cooling SAT R/W

°F

sat_cl_min

AV:83003

Input
Register
(Float)

Setpoint Adjustment
Range

R/W

°F

stpt_adj_range

AV:9015

Holding
Register
(Float)

101

BAS On / Off

R/W

(1) Inactive
(2) Occupied
(3) Unoccupied

keypad_ovrde

MSV:1001

Holding
Register
(Signed)

133

ZS Sensor
Configuration

(0) Normal
(1) Alarm

zs_config_fail

BV:7055

Discrete
Input

Space Relative
Humidity

%rh

space_rh

AV:1011

Input
Register
(Float)

103

Space Temp Source

(1) Sensor Failure
(2) SPT Sensor
(3) T55 / T56
(4) Network
(5) Airside
Linkage
(6) Locked Value

spt_status

MSV:2003

Fan Off Delay

R/W

seconds

fan_delay_off

AV:9024

Air Source Supply Air
Temp

°F

link_sat

AV:2608

Water Loop Temp

°F

link_cwt

AV:2701

Aux Heat Boiler Water
Temp

°F

link_hwt

AV:2702

Airside Linkage

(0) Normal
(1) Alarm

air_linkage_fail

BV:7030

Source Water Linkage R

(0) Normal
(1) Alarm

cond_water_linkage_fail

BV:7031

System Heating
Demand Level

no units

heat_demand_level

AV:9036

Airside Linkage

(0) Not Active
(1) Active

a_link_status

BV:2601

Occ Override Delay

R/W

min

occ_ovr_delay

AV:9028

Loop Pump Request

no units

loop_request

AV:2024

Source Water Linkage R

(0) Not Active
(1) Active

cw_link_status

BV:2701

Aux Heat HW Pump
Status

(0) Off
(1) On

hw_pump

BV:2703

System Cooling
Demand Level

no units

cool_demand_level

AV:9006

Filter Runtime

filter_rntm

AV:2015

Compressor Capacity R

comp_cap

AV:5001

Input
Register
(Float)

165

Air Source Mode

(1) Off
(2) Warmup
(3) Heat
(4) Cooling
(5) Freecool
(6) Pressure
(7) Evac
(8) Vent

link_ahu_mode

MSV:2005

Summary of Contents for WSHP Open v3

Page 1: ...W WS SH HP P O Op pe en n v v3 3 I In nt te eg gr ra at ti io on n G Gu ui id de e CARRIER CORPORATION 2021 Catalog No 11 808 539 01 6 15 2021 ...

Page 2: ...ystems com or your local Carrier office Important changes are listed in Document revision history at the end of this document CARRIER CORPORATION 2021 All rights reserved throughout the world i Vu is a registered trademark of Carrier Corporation All other trademarks are the property of their respective owners ...

Page 3: ...C 19 Commissioning the controller for LonWorks communication 20 Troubleshooting LonWorks 20 Start up 22 Sequence of Operation 23 Scheduling 23 Fire Smoke detector input 24 Shutdown input 24 Indoor fan 24 Cooling 25 Reverse cycle heating 26 Auxiliary heat 27 Indoor air quality IAQ and demand control ventilation DCV 28 Dehumidification 28 Waterside economizer 29 Demand limiting 30 Power failure rest...

Page 4: ...Contents Appendix D Johnson N2 Protocol Implementation Conformance Statement 48 Appendix E LonWorks Protocol Implementation Conformance Statement 50 Document revision history 51 ...

Page 5: ...ent Touch is a touchscreen device with a 4 3 in color LCD display that you connect to the Rnet port of one of the following controllers to view or change its property values schedule equipment view trends and alarms and more without having to access the system s server You can use Carrier s Equipment Touch user interface with the WSHP Open controller using the 5 pin J12 Access Port See illustratio...

Page 7: ...ions handling warning WARNING When you handle the WSHP Open Do not contaminate the printed circuit board with fingerprints moisture or any foreign material Do not touch components or leads Handle the board by its edges Isolate from high voltage or electrostatic discharge Ensure that you are properly grounded ...

Page 8: ...Source Water Temp 10K Type II AI 10K Thermistor J2 1 2 AI 6 Supply Air Temperature 33ZCSENSAT AI 10K Thermistor J2 3 4 AI 7 Supply Fan Status N A BI Dry Contacts J5 1 2 BI 8 Occupancy Contact N A BI Dry Contacts J5 1 2 BI 8 Smoke Detector Input N A 24 Vac J1 9 24 Vac IN Outputs Aux Heat Modulating HW Valve Water Econ N A AO 0 10 Vdc 2 10 mA J2 4 5 AO 1 Outside Air Damper N A AO 0 10 Vdc 2 10 mA J2...

Page 9: ...put Type Part Numbers Type of I O Connection Pin Numbers I O Channel Legend AI Analog Input AO Analog Output BI Digital Input BO Digital Output These outputs are configurable 24 Vac required at this terminal to provide unit operation Connect an isolated N C smoke detector contact or jumper between 24 Vac and J1 9 ...

Page 10: ... BACnet MS TP page 7 BACnet ARC156 page 11 Modbus page 13 Johnson N2 page 16 LonWorks page 18 The default setting is BACnet MS TP You set the protocol and baud rate using the SW3 DIP switches The rotary switches MSB SW1 and LSB SW2 set the board s network address See table below for specific switch settings The third party connects to the controller through port J19 for BACnet MS TP BACnet ARC156 ...

Page 11: ...e MSB SW1 switch to the tens digit of the address and set the LSB SW2 switch to the ones digit Valid addresses are 01 99 NOTE The rotary switches also determine the BACnet device instance of the controller on the BACnet network The BACnet device instance is automatically generated based on the scheme 16101xx where 16 is the BACnet vendor ID for Carrier Corporation and xx equals the rotary switch a...

Page 12: ...le shows the DIP switches set for 76 8k Carrier default and BACnet MS TP 5 Connect the BACnet MS TP network to the controller s J19 Network Comm port Connect to Net Net and SHLD Wire specifications A dedicated 22 AWG shielded twisted pair wire EIA 485 Maximum wire length 2000 feet 610 meters or 32 nodes Devices should be daisy chained and not star wired Attach the drain shield wire to both ends of...

Page 13: ...e maximum number of responses that will be sent when the WSHP Open receives the token The default is 10 and should be ideal for the majority of applications In cases where the WSHP Open is the target of many requests this number could be increased as high as 100 or 200 NOTES BACnet MS TP networks can be comprised of both master and slave nodes Valid MAC addresses for master nodes are 0 127 and val...

Page 14: ... and click ET System 4 On the ET System screen click Setup 5 On the Setup screen click Module Setup 6 On the Module Setup screen click Communication On the Communication screen edit the fields as needed 7 Click the property box next to BACnet Device Instance type the new number and click Done 8 Click the property box next to Max Masters and or Max Info Frames type a new value 1 127 and click Done ...

Page 15: ...nce numbers Default is 16101XX with the rotary address switches defining XX If controllers have duplicate device instance numbers network communication can be lost NOTES The controller recognizes physical changes DIP switches rotary switches and jumpers upon power up If RX LED is solid then the terminations are incorrect If the network has greater than 32 devices or exceeds 2 000 feet a Repeater s...

Page 16: ...nce is automatically generated as 1610101 10 s 1 s 1 3 4 5 2 7 8 9 6 0 1 3 4 5 2 7 8 9 6 0 SW1 SW2 M SB LSB 3 Set the remaining DIP switches as follows BACnet ARC156 DIP switch settings 8 7 6 5 4 3 Off Off Off Off N A N A The following example shows the DIP switches set for BACnet ARC156 4 Connect the BACnet ARC156 network to the controller s J19 Network Comm port Connect to Net Net and SHLD Wire ...

Page 17: ...ions are incorrect If the network has greater than 32 devices or exceeds 2 000 feet a Repeater should be installed If a controller begins or ends a network segment a terminating resistor may be needed Software settings defined through the Equipment Touch device To confirm settings obtain a Modstat of the device On the Equipment Touch click the link to the Modstat Modbus To set up the WSHP Open for...

Page 18: ...38 4 kbps Off On 76 8 kbps On On 4 Set the remaining DIP switches as follows Modbus DIP switch settings 8 7 6 5 4 3 Off Off Off On On Off The following example shows the DIP switches set for 9600 baud and Modbus 5 Connect the Modbus EIA 485 network to the WSHP Open s J19 Network Comm port Connect to Net Net and SHLD Wire specifications A dedicated 22 AWG shielded twisted pair wire EIA 485 Maximum ...

Page 19: ...roller have the same communication settings 8 data bits No Parity and 1 stop bit Proper connection wiring between the BAS and the controller 1 Verify that the rotary address switches are set for the controller s unique slave address 2 BAS must be reading or writing to the proper point addresses on the controller 3 BAS is sending requests to the proper slave address of the controller NOTE Refer to ...

Page 20: ...of the address and set the LSB SW2 switch to the ones digit Valid N2 slave addresses are 01 99 EXAMPLE To set the N2 slave address to 01 point the arrow on the MSB SW1 switch to 0 and the arrow on the LSB SW1 switch to 1 10 s 1 s 1 3 4 5 2 7 8 9 6 0 1 3 4 5 2 7 8 9 6 0 SW1 SW2 M SB LSB 3 Set the DIP switches 1 and 2 for 9600 bps baud NOTE Use the same baud rate and communication settings for all c...

Page 21: ...s DS3 DS6 2 The BAS and the controller are both set for the same baud rate 9600 for N2 Baud rate DIP switches DS2 and DS1 Obtain a Modstat of the controller Scroll to the bottom of the page to Network Communications to view the active protocol and baud rate 3 The BAS is configured to speak 2 wire EIA 485 to the controller The BAS may have to configure jumper or DIP switches on their end 4 The BAS ...

Page 22: ...on Card Do not contaminate the printed circuit board with fingerprints moisture or any foreign material Do not touch components or leads Handle the board by its edges Isolate from high voltage or electrostatic discharge Ensure that you are properly grounded Refer to Appendix E page 50 for the LonWorks Protocol Implementation Conformance Statement PICS ...

Page 23: ...ct until the power has been cycled The controller s rotary address switches are not used when the LON OC is installed That s because each LON OC has a 48 bit Neuron ID that makes it unique on the LonWorks network 2 Set the SW3 DIP switches for LonWorks as follows 8 7 6 5 4 3 2 1 Off On On Off On Off Off On 3 Plug the LonWorks Option Card s ribbon cable into Comm Option port J15 on the controller S...

Page 24: ...terface File XIF information LonWorks uses the XIF to determine the points network variables that are available from a device The WSHP Open has a set of predefined network variables These variables can be bound or accessed by the Network Management Tool The Browse feature of the Network Management Tool allows you to read real time values from the WSHP Open The Network Management Tool allows you to...

Page 25: ...nd get real time values from the controller before connecting the BAS 7 Once you have confirmed communications with the controller using the network management tool connect the BAS 8 Verify that the BAS is connected properly to the LonWorks Option Card s 2 wire TP FT 10 Net port which is polarity insensitive The BAS may have to configure jumper or DIP switches on their end to support TP FT 10 ...

Page 26: ...ailable only for BACnet MS TP systems Wire to a BACnet MS TP network connector and a 24 Vac power supply 3 Temporary or permanent interface 1 Requires a USB Link Part USB L 2 See the Equipment Touch Installation and Setup Guide for detailed instructions 3 See the System Touch Installation and Setup Guide for detailed instructions CAUTION If multiple controllers share power but polarity was not mai...

Page 27: ...ouch Field Assistant or the i Vu application to assign a time schedule to the controller Schedule_Schedule The unit operates according to the schedule configured and stored in the unit The schedule is accessible via the Equipment Touch the i Vu application or Field Assistant The daily schedule consists of a start and stop time standard or 24 hour mode and 7 days of the week starting with Monday an...

Page 28: ...intermittent operation during both occupied and unoccupied periods Continuous default intermittent operation during unoccupied periods and continuous during occupied periods Always on operates the fan continuously during both occupied and unoccupied periods In the Continuous default mode the fan is turned on when any one of the following is true It is in occupied mode which is determined by the oc...

Page 29: ...n within the limit Fan operates at the lowest speed during dehumidification to maximize latent capacity during cooling Fan Status You can configure an optional input as either an occupancy input contact or a fan status input If configured as fan status the controller compares the status of the fan to the desired commanded state When the fan is commanded to run ON the fan status is checked and veri...

Page 30: ... if the compressor status matches the commanded state This input is used to determine if a refrigerant safety switch or other safety device has tripped and caused the compressor to stop operating normally If this occurs an alarm is generated to indicate the faulted compressor condition Reverse cycle heating The WSHP Open operates 1 or 2 stages of compression to maintain the desired cooling setpoin...

Page 31: ...e heat provided by the compressor if the space temperature falls more than 1 F below the desired heating setpoint This amount is configurable The heat is controlled so the SAT does not exceed the Maximum Heating SAT limit The same conditions required for Reverse Cycle Heating must be true in order for the Auxiliary Heat algorithm to run Auxiliary Modulating Hot Water Steam Heating Reheat The contr...

Page 32: ...t The control has the following 4 adjustable setpoints DCV Start Ctrl Setpoint DCV Max Ctrl Setpoint Minimum Dmpr Pos DCV Max Vent Damper Pos NOTE In order for the damper to maintain proper base ventilation you must configure the fan as Continuous or Always On 2 position OA Damper You can configure the control to operate as a ventilation damper in a 2 position ventilation mode to provide the minim...

Page 33: ...uring compressor operation Heating In addition the control modulates the water valve if the entering source water loop temperature is suitable for heating at least 5 F above space temperature and heat is required The valve is controlled in a similar manner except to satisfy the heating requirement If the coil capacity alone is insufficient to satisfy the space load conditions for more than 5 minut...

Page 34: ...tpoints When occupancy transitions from unoccupied to occupied or the occupied temperature setpoints are changed causing an alarm condition to occur the control automatically calculates an alarm delay equivalent to the configured delay time in minutes F multiplied by the temperature error 15 minutes This prevents nuisance alarms when an occupancy change occurs and allows time for the unit to corre...

Page 35: ...d periods During occupied periods the controller uses the occupied high RH alarm limit When an occupancy transition from unoccupied to occupied occurs or the occupied high alarm limit is lowered causing an alarm condition to occur the control automatically calculates an alarm delay equivalent to the configured delay time in minutes RH times the humidity error condition that occurred 15 minutes Thi...

Page 36: ...fy proper unit operation If the problem occurs without the WSHP Open connected then you should begin troubleshooting the unit equipment rather than the WSHP Open or network LED s The LED s indicate if the controller is speaking to the other devices on the network The LED s should reflect communication traffic based on the baud rate set The higher the baud rate the more solid the LED s will appear ...

Page 37: ...2 flashes per second On Firmware halted after frequent system errors or control programs halted 5 flashes per second Off Firmware transfer in progress Boot is running 7 flashes per second 7 flashes per second alternating with Run LED Ten second recovery period after brownout 14 flashes per second 14 flashes per second alternating with Run LED Brownout On On Failure Try the following solutions Turn...

Page 38: ...interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense CAUTION Changes or modifications not expressly approved by the responsible party for compliance could void the user s authority to operate the equipment CE Compliance WARNING This is a C...

Page 39: ...party system In the i Vu interface select the controller in the navigation tree and go to Properties BACnet Objects tab When an i Vu Open controller or a third party system writes to any of the system points you must use BACnet Priority Level 16 and the value must not be written to or refreshed more than once per minute 60 seconds CAUTION If any other Priority Level is used the value will not be r...

Page 40: ...ritten to within the refresh time specified value varies by point the i Vu Open controller clears any value that is written once it has been processed by the controller and returned the system point to its default value Therefore a BAS should never read back the system point s value to confirm the commanded value was successfully received To confirm a write refer to the table below for the corresp...

Page 41: ...atus bv 1002 enthalpy_status System Outdoor AQ av 1908 system_oaq Outdoor Air Quality CO2 ppm av 1012 oaq System Water Temperature av 1905 system_water_t emp Changeover Mode av 1014 chgovr_mode System Fire Smoke bv 1907 fire_shutdown Fire Smoke Shutdown bv 7007 fire_alarm System Pressurization bv 1906 press_override Pressurization bv 7038 press_alarm BAS On Off Occupancy msv 1001 keypad_ovrde Occu...

Page 42: ...n Pos R W 20 econ_min AV 4005 Holding Register Float 131 Outdoor Air Temperature R F oa_temp AV 1003 Input Register Float 87 Override Time Remaining R min ovrde_time AV 2016 Input Register Float 93 Setpoint R W F occ_ht_stpt AV 3002 Holding Register Float 19 Setpoint Adjustment R F stpt_adj AV 1006 Input Register Float 99 Space Temperature Prime Variable R F space_temp AV 2007 Input Register Float...

Page 43: ...larm BV 7007 Discrete Input 32 Heat Enable R W 0 Disable 1 Enable 1 Enable ht_enable BV 1012 Coil 37 High Space Temperature R 0 Normal 1 Alarm spt_hi_alarm BV 7011 Discrete Input 35 Indoor Air Quality R 0 Normal 1 Alarm iaq_alarm BV 7005 Discrete Input 33 Low Space Temperature R 0 Normal 1 Alarm spt_lo_alarm BV 7012 Discrete Input 39 Occupancy Status R 0 Unoccupied 1 Occupied occ_status BV 2008 Di...

Page 44: ...5 Setpoint R W F unocc_cl_stpt AV 3003 Holding Register Float 15 Heating Lockout Temperature R W F 65 oat_ht_lockout AV 9003 Holding Register Float 69 Power Fail Restart Delay R W seconds 180 start_delay AV 9007 Holding Register Float 127 Setpoint R W F occ_cl_stpt AV 3001 Holding Register Float 9 Filter Service Alarm Timer R W hr 600 filter_service_hrs AV 2019 Holding Register Float 67 Indoor Air...

Page 45: ...alue spt_status MSV 2003 Fan Off Delay R W seconds 90 fan_delay_off AV 9024 Air Source Supply Air Temp R F link_sat AV 2608 Water Loop Temp R F link_cwt AV 2701 Aux Heat Boiler Water Temp R F link_hwt AV 2702 Airside Linkage R 0 Normal 1 Alarm air_linkage_fail BV 7030 Source Water Linkage R 0 Normal 1 Alarm cond_water_linkage_fail BV 7031 System Heating Demand Level R no units heat_demand_level AV...

Page 46: ...nviClLckTemp SNVT_temp_p 105 Damper Output R ADF 74 nvoOAVntDmpr SNVT_lev_percent 81 Leaving Source Water Temp R F ADF 73 nvoLvgCWTemp SNVT_temp_p 105 Vent Dmpr Pos DCV Min Pos R W 20 ADF 60 nviDCVMinPos SNVT_lev_percent 81 Outdoor Air Temperature R F ADF 38 nvoOAT SNVT_temp_p 105 Override Time Remaining R min ADF 41 nvoOvrTmRem SNVT_time_min 123 Setpoint R W F ADF 9 nviOccHeatSP SNVT_temp_p 105 S...

Page 47: ... 0 Normal 1 Alarm BI 35 nvoHiSpTemp SNVT_switch 95 Indoor Air Quality R 0 Normal 1 Alarm BI 33 nvoIAQAlm SNVT_switch 95 Low Space Temperature R 0 Normal 1 Alarm BI 39 nvoLoSpTmp SNVT_switch 95 Occupancy Status R 0 Unoccupied 1 Occupied BI 18 nvoOccStatus SNVT_switch 95 Setpoint Adjustment R W 0 Disable 1 Enable 1 Enable BO 26 nviSPAdjEnbl SNVT_switch 95 Shutdown R W 0 Inactive 1 Active 0 Inactive ...

Page 48: ...VT_temp_p 105 Filter Service Alarm Timer R W hr 600 ADF 28 nviFltAlmTm SNVT_time_hour 124 Indoor Air Quality CO2 ppm R ppm ADF 31 nvoIAQ SNVT_ppm 29 Setpoint R W F ADF 8 nviUnoccHtSP SNVT_temp_p 105 System Outdoor Air Temperature R W F 999 ADF 54 nviSysOAT SNVT_temp_p 105 System Setpoint Adjustment R W F 999 ADF 68 nviSysSptAdj SNVT_temp_p 105 Reset Filter Alarm R W 0 Off 1 On 0 Off BO 22 nviRstFi...

Page 49: ...ER CORPORATION 2021 Integration Guide All rights reserved 45 The PIC statements are updated regularly Please refer to the BACnet website http www bacnetinternational net catalog index php m 28 for the latest information Appendix B BACnet Protocol Implementation Conformance Statement ...

Page 50: ...unication Types Baud rates Data Bits Parity Stop Bits 2 wire EIA 485 9600 19200 38400 76800 8 None 1 Function Codes Purpose Used with Register Numbers 01 Read Coil Status Read Discrete Outputs 00001 65535 02 Read Input Status Read Discrete Inputs 00001 65535 03 Read Holding Registers Read Holding Registers 00001 65535 04 Read Input Registers Read Input Registers 00001 65535 05 Force Single Coil Wr...

Page 51: ...ed Integer UINT 0 65535 3 Read Holding Register 6 Preset Single Register 16 Preset Multiple Register Signed Integer SINT 32768 32767 3 Read Holding Register 6 Preset Single Register 16 Preset Multiple Register Discrete Input DI 0 Off 1 On 2 Read Input Status Discrete Output DO 0 Off 1 On 1 Read Coil Status 5 Force Single Coil 15 Force Multiple Coils ...

Page 52: ...peaking multiple protocols The WSHP Open controller speaks the Johnson N2 Open Protocol as described in the Metasys N2 System Protocol Specification for Vendors document revision 6 13 96 Further details on the N2 supported implementation are described below Communication Types Baud rates Data Bits Parity Stop Bits 2 wire EIA 485 9600 8 None 1 Network Point Types Analog Inputs AI Binary Inputs BI A...

Page 53: ...on Conformance Statement WSHP Open v3 CARRIER CORPORATION 2021 Integration Guide All rights reserved 49 Write Binary Output Write Internal Parameter Override Analog Input Override Binary Input Override Internal Parameter Override Release Request ...

Page 54: ...the network An external interface file XIF is also available so that any network management tool can design and configure the WSHP Open prior to installation Contact your Carrier representative for this XIF file LonWorks is an open protocol that requires the use Echelon s Neuron microprocessor to encode and decode the LonWorks packets In order to reduce the cost of adding the Echelon chip to every...

Page 55: ...ferences to appropriate sensor guides C AE WB O Sequence of operation Linkage air source mode determination Clarified reason and method for generating a particular mode Evacuation Shutdown changed to Evacuation C AE WB E BACnet ARC156 Added instructions C D All Troubleshooting sections Reformatted and information on Static Binding removed since we only use Dynamic Binding now C D 2 22 16 Start up ...

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Page 58: ...CARRIER CORPORATION 2021 Catalog No 11 808 539 01 6 15 2021 ...

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