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TEMPTRAC INTERFACE GUIDE, GATEWAY SETUP AND POINTS LIST 

Page 19 of 30 

PV7069-T   03/17 
Part number 129209 

ALL POINTS INCLUDING ADVANCE: 

Hy1 

Read 

Setpoint Differential 

MODBUS 

Holding Register 

772 

40773 

BACNET 

Hy1 

77300 

delta-degrees-Fahrenheit 

LONWORKS 

nvoHy1_# 

 

 

Differential. (if Hy1 is negative) The heater will begin heating when Probe #1 must fall this far below St1 
setpoint, and stay on until the heater reaches St1 setpoint. 
(If Hy1 is positive) The heater will come on when Probe #1 falls to or below St1 setpoint, and will not turn off 
until it has reached this far above St1 Setpoint. BACNET and LONWORKS, this point is configured as a read 
only, with MODBUS, there is no protection from changing this value. 
 

St4 

Read Only 

Modulation Start 

MODBUS 

Holding Register 

792 

40793 

BACNET 

St4 

79300 

No Units 

LONWORKS 

nvoSt4_# 

 

 

Starting point of modulation. Related to the St1 setpoint. If Probe 1 is above St1 + St4, then Modulation signal 
will be low fire. If Probe 1 falls below (St1 + St4) then the analog output signal will modulate based on the setting 
in the SR register. This is set to No Units in BACNET because it can relative to St1 or is can be independent 
value. Typically it is configured as relative to St1. BACNET and LONWORKS, this point is configured as a read 
only, with MODBUS, there is no protection from changing this value.

 

 

SR 

Read 

Modulation bandwidth 

MODBUS 

Holding Register 

793 

40794 

BACNET 

SR 

79400 

delta-degrees-Fahrenheit 

LONWORKS 

nvoSR_# 

 

 

Normally this is a negative number. Number of degrees of change in Probe 1 that will modulate from 0 to 100%. 
St1 + St4 = low fire, St1 + St4 + SR = High Fire. Temperatures above low fire will be low fire, temperatures 
below high fire will be high fire. In-between, the output will modulate from 4-20mA (0-100%) BACNET and 
LONWORKS, this point is configured as a read only, with MODBUS, there is no protection from changing this 
value.

 

 

Probe 1 

Read Only 

Controlling Probe Degrees F 

MODBUS 

Holding Register 

256 

40257 

BACNET 

Probe1 

25700 

Deg-F 

LONWORKS 

nvoProbe1_# 

 

Deg_F 

Probe that provides control of heating. Location can vary depending on equipment and application. See section 
that discussed the various equipment to determine actual location of probe. Connection on TempTrac is green 
screw terminals 14 and common 17. 
 

Probe 2 

Read Only 

Probe 2 in degrees F 

MODBUS 

Holding Register 

258 

40259 

BACNET 

Probe2 

25900 

Deg-F 

LONWORKS 

nvoProbe2_# 

 

Deg_F 

Optional probe on some devices, usually installed on most devices. If installed and enabled, returns the 
temperature of the probe in degrees F. Connection on TempTrac is green screw terminals 15 and common 17. 
 

Probe 3 

Read Only 

Probe 3 in degrees F 

MODBUS 

Holding Register 

260 

40261 

BACNET 

Probe3 

26100 

Deg-F 

LONWORKS 

nvoProbe3_# 

 

Deg_F 

Optional probe on some devices, not usually installed on most devices. If installed and enabled, returns the 
temperature of the probe in degrees F. Connection on TempTrac is green screw terminals 16 and common 17. 
 

Summary of Contents for TEMPTRAC

Page 1: ...G BAS TO GATEWAY AND THEN GATEWAY TO TEMPTRAC 6 WIRING OF TEMPTRAC TO BAS Direct no Gateway 7 GATEWAY CONFIGURATION CONNECTION 7 CONFIGURE GATEWAY DIP SWITCHES 8 CONFIGURE THE GATEWAY USING THE HTML INTERFACE 9 CONFIRM OPERATION 10 TROUBLESHOOTING GATEWAY 10 HOOKUP OVERVIEW 11 APPLICATION SPECIFICS 12 POINTS LIST 16 TYPICAL POINTS 16 ALL POINTS INCLUDING ADVANCED 18 ADVANCED MODBUS LIST 25 TO THE ...

Page 2: ...ing directly to water heaters using MODBUS RTU twisted pair wire Wiring is RS 485 physical layer BAS to heaters using a Protocol Gateway Building Automation System BAS connecting to a PVI gateway This can provide interface to BACNET MSTP BACNET IP LONWORKS and MODBUS TCP Wiring from gateway to heaters is RS 485 physical layer Wiring from BAS to gateway will depend on Protocol BAS to heaters using ...

Page 3: ...u Enter the Programming mode by pressing the SET and DOWN key for more than 3 seconds Lead with the SET key Pressing the DOWN key parameters will display in top and value in bottom Select Pr2 PAS parameter value and press the SET key The lower display will show the value 0 with a flashing zero Use UP or DOWN keys to input the security code in the flashing digit confirm each digit by pressing SET T...

Page 4: ... is considered the PHYSICAL LAYER RS 485 is the same physical layer as used with BACNET MSTP No provisions for biasing resistors or termination resistors are provided on the control If required this will need to be provided externally The PVI gateway does provide optional biasing default and can provide a termination resistor if required ITEMS REQUIRED FOR GATEWAY INTERFACE One or more water heate...

Page 5: ...upply ship lose The gateway is a grey module that has a wall wart style power supply TempTrac is mounted on the control panel of the equipment On the back side of the TempTrac is a white header The RS 485 adapter plugs into this with a 8 inch cable The orange adapter has 2 green terminals labeled The Protocol Gateway if supplied comes with a power supply and ships as a loose item Protocol Gateway ...

Page 6: ... connector on the end strip and terminate the power adapter in the proper terminals Verify polarity If another supply is to be used it must be isolated Do not use 24VAC power from heater Gateway Connection to Heaters Wiring from Gateway to the heaters use twisted pair wire Connector on the orange dongle adapter that is on the end of a 8 cable plugged into the back of the TempTrac The wiring is sta...

Page 7: ...ck with a Digital Volt Meter set to Volts DC Take a reading at the orange adapter from the Terminal to the Terminal The should be the positive lead when connected GATEWAY CONFIGURATION CONNECTION Both the LONWORKS and BACNET gateway have an Ethernet port Connect the computer using a patch cable or cross over cable to establish a direct connection to the gateway Older units may require a cross over...

Page 8: ...n terminal block This is the connection that will connect to the Building Automation System BAS This is used only when the protocol is BACNET MSTP A0 7 BACNET MSTP MAC ADDRESS Default is MAC address 3 Configure the MAC address for the BACNET Gateway by summing the A dip switches that are ON MAC address range 1 127 Protocol S0 S1 S2 S3 BACNET IP OFF OFF OFF OFF BACNET MSTP ON OFF OFF OFF MODBUS TCP...

Page 9: ...ET network BACNET Node Offset This will be used to create the DEVICE INSTANCE Sum the device MODBUS Address and this number Example 50000 Node Offset MODBUS address 1 50001 Device Instance Each MODBUS device will have its own Device Instance number BACNET MSTP option BACNET MSTP Max Master 127 BACNET IP option BACNET IP Port 47808 Default BACNET COV COV Disable BACNET MSTP option BACNET BBMD Defau...

Page 10: ...n error o Connect to gateway with HTML interface to view error messages PWR LED not on o Confirm power on PWR and PWR TX RX not flashing o Confirm connections to heaters and MODBUS addressing o Confirm gateway has been configured TX flashing RX not flashing o Gateway is talking to TempTrac but not getting response from TempTrac Confirm wiring confirm TempTrac is configured to proper address Baud P...

Page 11: ...T 03 17 Part number 129209 HOOKUP OVERVIEW BACNET MSTP or LONWORKS BACNET IP or MODBUS TCP MODBUS RTU Direct Connect BACNET MSTP OR LONWORKS To heaters with TempTrac Power Adapter BACNET IP OR MODBUS TCP To heaters with TempTrac Power Adapter MODBUS RTU To heaters with TempTrac ...

Page 12: ...his is a low current low voltage contact It is advised to use a contact with gold plating If not available use 2 contacts in parallel Alarm A1 A2 Output from Heater Closed ALARM Remote Proving C1 C2 Ships with factory jumper Open will prevent burner from operating Keeping this open will create a lockout condition that will require user intervention Remote Equipment Burner ON Contact that will clos...

Page 13: ...readings This is optional and not standard Alarm_AL3 Alarm on any failure Burner_Relay1 Burner Relay2 Not used Relay3 Isolation Valve control when the OnTrac boiler management system is controlling Modulation Rate Modulation rate Low fire 0 High Fire 100 Discrete connections Ext Enable Terminals R1 R2 Jumper to enable Heater ships with jumper on this An external enable disable can be attached to t...

Page 14: ...lockout condition that will require user intervention Remote Equipment Burner ON Contact that will close P1 P2 during a heating cycle Open the heater is not calling for heat No Setpoint Input There is not a discreet method to send a setpoint signal to the M3 boiler No Modulation Input There is not discreet way for a building automation system to control the modulation firing rate of the Conquest Q...

Page 15: ...features Reference supplied wiring diagram and the I O Manual Contact PVI for additional information Below is a list of other products that can use the TempTrac controller Quickdraw Water to water Storage EZ PLATE STORAGE TURBOPOWER 99 TURBOPOWER POWER VT PLUS TRICON MAXIM 3 DURAWATT With TTRAC option MAXIM With TTRAC option COBREX STORAGE ...

Page 16: ...n Read name_ Lon Write name_ Lon Units NOTES TYPICAL POINTS The points that are typically used to interface with the heater Most integrations only require points from this list TYPICAL POINTS Control_CNT Write Enable Heater 257 on 1 off MODBUS Holding Register 1280 41281 BACNET Enable 128100 LONWORKS nvoCtrl_CNT_ This can be used to prevent the heater from heating via communication 257 or 0X0101 o...

Page 17: ...t it Modulation Rate Read Only Monitor the modulation signal MODBUS Holding Register 262 40263 BACNET Modulation_FR 26300 LONWORKS nvoMod_FR_ Modulation rate on the analog output 4 20ma is represented as 0 100 This feature was introduced in Firmware 0 5 5 and is not available from older TempTrac modules already in the field Burner_Relay1 Read Only Status of burner Relay1 Output 1 MODBUS Holding Re...

Page 18: ... after communication is established or interrupted If this value if reading NOT_PRESENT then no all over values are suspect as the device is not communicating Generally the Gateway will hold the last value received The only way to ensure you have the current values from the heater is to verify this point is ACTIVE as well ALL POINTS INCLUDING ADVANCED Points listed below that are not in the TYPICA...

Page 19: ...US Holding Register 793 40794 BACNET SR 79400 delta degrees Fahrenheit LONWORKS nvoSR_ Normally this is a negative number Number of degrees of change in Probe 1 that will modulate from 0 to 100 St1 St4 low fire St1 St4 SR High Fire Temperatures above low fire will be low fire temperatures below high fire will be high fire In between the output will modulate from 4 20mA 0 100 BACNET and LONWORKS th...

Page 20: ...ed by service tech to make combustion adjustments at a particular firing rate Normal setting is 101 Auto This allows the heater to modulate ad the load requires If you put a value 0 100 it will force the heater to that firing rate when operating 0 Low Fire 100 High Fire Use with caution Advise allowing the heater do control its own modulation ALL Read Write Minimum Temperature Alarm MODBUS Holding...

Page 21: ...sion number At time of this manual current version is 0 5 read as 5 Modulation Rate Read Only Monitor the modulation signal MODBUS Holding Register 262 40263 BACNET Modulation_FR 26300 LONWORKS nvoMod_FR_ Modulation rate on the analog output 4 20ma is represented as 0 100 This feature was introduced in Firmware 0 5 5 and is not available from older TempTrac modules already in the field RELAYS Stat...

Page 22: ...ate alarms Alarm_LA Read Only Status of low temperature Alarm MODBUS Holding Register 3328 43329 0 BACNET Alarm_LA 332950 LONWORKS nvoAlarm_LA_ Low water temperature alarm Probe 1 is lower than temperature in ALL point This is Bit 0 of the ALARM STATUS ALL word In BACNET and LONWORKS this is broken out into a state logic point For MODBUS ALARMS 0x0001 0x0001 Alarm is active 0x0000 Alarm is not act...

Page 23: ...al Input 1 alarm This is typically not implemented Refer to product specific details for information on this alarm This is Bit 10 of the ALARM STATUS ALL word Flashes AL1 on TempTrac display In BACNET and LONWORKS this is broken out into a state logic point For MODBUS ALARMS 0x0400 0x0400 Alarm is active 0x0000 Alarm is not active Alarm_AL2 Read Only Status of digital input 2 Alarm MODBUS Holding ...

Page 24: ...rm for output 3 MODBUS Holding Register 3328 43329 15 BACNET Alarm_Nn3 332963 LONWORKS nvoAlarm_Nn3_ Maintenance Alarm This is enabled when the time on ou3 is greater than the value in oP3 Flashes Nn3 on TempTrac display Bit 15 of Alarms In BACNET and LONWORKS this is broken out into a state logic point For MODBUS ALARMS 0x8000 0x8000 Alarm is active 0x0000 Alarm is not active Com Status Read Only...

Page 25: ...he MODBUS parameters are listed in the correlating TYPICAL POINTS defined previously Many MODBUS parameters are not supported in the gateway interface This is a complete reference list and contains advanced parameters All MODBUS points normally required for interface are represented in the TYPICAL POINTS section If there is a need for interfacing using other parameters consult factory to confirm p...

Page 26: ... F St3 Pr2 Pr2 0x30F 784 uS3 0 3 0 5 Maximum set point 3 St3 St3 230 F Pr2 Pr2 0x310 785 AC3 0 3 0 5 Anti short cycle delay for output 3 0 30min Pr2 Pr2 0x311 786 o3P 0 3 0 5 Probe selection for output 3 Pb1 Pb2 Pr2 Pr2 0x312 787 SSE 0 3 0 5 Set point shift for output 3 enable disable No Yes Pr2 Pr2 0x313 788 HY5 0 3 0 5 Differential for set point 5 22 22 F Pr2 Pr2 0x314 789 Ac5 0 3 0 5 Anti short...

Page 27: ...splay 1 Bottom Yellow Pb1 tiM Pr2 0x32C 813 dS1 0 5 Default showing for display 1 Bottom Yellow Pb3 will display yellow EXT Ani will display yellow Valve M Pb1 Pb2 Pb3 AnI TiM Pr2 0x32C 813 ALARMS Alc 0 3 0 5 Temperature alarms configuration dependent on St1 or independent rE Ab Pr3 Pr2 0x32D 814 ALL 0 3 minimum temperature alarm for Pb1 Alarm LA flash only 40 230 F Pr2 Pr2 0x32E 815 ALL 0 5 minim...

Page 28: ... 5 Energy saving stop on Thursday 0 23h 50min nu Pr2 Pr2 0x348 841 Sb5 0 3 0 5 Set back temperature on Thursday 40 40 F Pr2 Pr2 0x349 842 E6 0 3 0 5 Energy saving start on Friday 0 23h 50min nu Pr2 Pr2 0x34A 843 S6 0 3 0 5 Energy saving stop on Friday 0 23h 50min nu Pr2 Pr2 0x34B 844 Sb6 0 3 0 5 Set back temperature on Friday 40 40 F Pr2 Pr2 0x34C 845 E7 0 3 0 5 Energy saving start on Saturday 0 2...

Page 29: ... probe failure Pr2 0x101 258 TP2 0 3 0 5 Probe 2 temperature Degrees F C Pr2 0x102 259 0 3 Probe 2 Information Status Normal 512or 0x0200 Fault 515 or 0x0203 Fault will buz Flash Red P2 bit 0 1 on probe failure Pr2 0x103 260 TP3 0 3 0 5 Probe 3 temperature Degrees F C Pr2 0x104 261 0 3 Probe 3 Information Status Normal 512or 0x0200 Fault 515 or 0x0203 Fault will buz Flash Red P3 bit 0 1 on probe f...

Page 30: ...4 or 15th bit Pr2 0xD00 3329 0 5 Maintenance Relay3 beep Flash Nn3 wrench 32768 or 0x8000You must reset hours ou3 or set oP3 0 bit 15 or 16th bit Pr2 0xD00 3329 0 3 0 5 On Off On 257 or 0x0101 Off 1 or 0x0001 Can be used to reset ALMMB alarm by cycling OFF wait 30 sec ON Low byte is mask Hi byte is command Bit 0 8 Pr2 0x500 1281 0 3 0 5 Keyboard Lock Lock 2056 or 0x0808 Unlock 8 or 0x0008 If locke...

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