Trane-485 Gateway Guide
Contents
1. ONERRIDE PRI maximum priority used for PHYSICAL I O Force o w Auto E 8 ROOFTOP_RECONTROL means VGER IPAK TUCs get recommended ever 5 mins OU ODE TC ONURSE TRUE if OCC INVERSION means that VAVs will have OCC 1 UNOCC 0 pee INVERSION TRUE Creating and Downloading the SOCKET CFG file The following is an example of the SOCKET CFG file that must be edited to match your particular installation if you are using the Modbus TCP or BACnet IP protocols If you are not doing an Ethernet connection this text file is irrelevant and can be ignored and left as it comes from the factory ONLY ONE LINE SHOULD BE CHANGED the line that begins with ip address Here is an example CWepesocketefg 0000000 SOCKET CFG is the configuration file to be executed by SOCKETP EXE ip address 192 168 0 72 24 interface pdr if0 dix 1500 10 0x60 The following line will just display the info for easy verification ip address _ The following lines set TCP IP parameters commented out in this case Hip tl 15 tcp mss 1460 _ tcp window 2920 The ip address 192 168 0 72 line should be modified to be whatever static IP address that the Trane 485 Gateway will have Note that DHCP is not an option this device requires a static 12 fixed IP address The optional 24 at the end of this line indicates the subnet mask is 24 bits set that is 255 255 255 0 it s an old2. to have OCC 0 so that they would default to Occupied mode after a power glitch Somehow other vendors were able to deal with this problem we note But if you want things to be switched in the software of the Trane Gateway it can be done yea Just add the line OCC INVERSION TRUE to the INI file and all VAV boxes will have their OCC UNOCC points both status and control inverted such that OCC 1 and UNOCC 0 If you include the OVERRIDE PRI then the gateway will use the BACnet priorities from Priority 1 called Manual Life Safety to this priority setting to force the physical I O points only that is DO 0 through DO 5 AO 6 and AO 7 Below that priority up to BACnet priority 10 16 the physical I O points will go to automatic control If you do NOT have this line in your INI file then the system expects you to use BO points 51 through 58 as command points to set the particular I O point into either forced or automatic mode before you do your actual control adjustment Finally we can t forget that the English units we know and love that is Degrees Fahrenheit feet BTUs inches of water PSI etc are actually pretty weird and not used in most of the world If you want the Gateway to translate the silly English units into the more sensible Metric units you can have it do to This is simple Just add the line UNITS METRIC to the INI file and the values input and output will be converte
3. JULY 2012 VERSION 1 7 Centaurus Prime CENTAURUS PRIME Integrations Custom Programming Consulting Trane 485 Gateway Guide JULY 2012 VERSION 1 7 INTEGRATIONS CUSTOM PROGRAMMING AND CONSULTING Trane 485 Gateway Guide 2005 2012 by Centaurus Prime 4425 Cass Street Suites B C San Diego CA Phone 858 270 4452 Fax 858 273 7769 Table of Contents Introduction i CHAPTER 1 Gateway Installation Basic Information 1 Summary 1 Single Board Computer Basics 2 Connecting Power to the Gateway 3 Connecting Trane Trunks to the Gateway 3 Connecting To the Modbus Master 4 Configuring the CS485 5 RS485 Communications 6 RS422 Communications 6 RS232 Communications 7 Removing the CS485 7 Connecting to a BACnet IP Network 7 Gateway Overview and Identification 8 CHAPTER 2 Commissioning the Gateway with the Local user Interface 9 Creating and Downloading the GATEWAY INI file 9 Creating and Downloading the SOCKET CFG File 12 Local Mode Menu Options 13 Auto Discovery and Database Generation 13 Summary Menu Options 15 Devices Menu Options 16 Point Menu Options 18 Control Menu Options 21 Watch Menu Options 23 Special Note for VAVs BO point 14 Recalibration 26 Special Notes for Intellipaks 26 Uploading and Downloading files to the Gateway 27 Setting Up The Modbus Driver 28 Setting Up The BACnet System 29 A Few Words about Controls 30 CHAPTER 3 Mod
4. 11 NOTES Range Note 1 For VAV 1 s this is a count value 0 to 255 representing degrees F in integer format In the Modbus case use Low Range 0 and High Range 255 For VAV II s and newer this is a value in TENTHS of degrees In the Modbus case use Low Range 0 and High Range 25 5 on a 255 counts scale or High Range 409 5 on a 4095 counts scale Range Note 2 Actually the Trane equipment used percentage points which are sent back as 0 to 100 counts representing 0 to 100 percent in integer format of the VAV box s maximum flow rate This is then translated to CFM cubic feet per minute given the scale associated with the 33 box see AI AO 9 the CFM maximum of the box commonly called the box size In the Modbus case use Low Range 0 and High Range maximum box size Range Note 3 This is a set of sizes which are the maximum design flow The AI point is in actual CFM The AO point is the code which sets the size of the VAV box Refer to the Trane documentation for the different sizes available for your VAV type and their codes The standard codes and sizes are as follows Code 0 300 CFM Code 1 600 CFM Code 2 1100 CFM Code 3 1700 CFM Code 4 2400 CFM Code 5 3200 CFM Code 6 4200 CFM Code 7 5000 CFM Device Point Mapping for VOYAGERs and INTELLIPAKs Monitor Reg Inst ANALOGS 30001 1 30002 2 30003 3 30004 4
5. e Local Mode Port for commissioning via Laptop Computer All Hardware necessary to connect the Gateway to the Trane 485 devices is included in the 16 X 14 X 8 plastic cabinet that is easily mounted in a convenient location The BACnet IP network is a 10 Mbaud Ethernet only The Modbus RTU Network connects to the Trane 485 Gateway via either a a 10 Mbaud Ethernet b an RS 422 serial link a four wire full duplex connection an RS 485 serial link a two wire half duplex connection or an c RS 232 serial link a three wire full duplex connection The RS485 or RS422 connections must be used in a multi drop network configuration Single Board Computer Basics The Single Board Computer used in Centaurus Prime Gateways is the Ether 6 manufactured by JK Microsystems It is made in the United States of America The controller is based on an Intel 386Ex processor running at 25Mhz It is equipped with 1 megabyte of static ram organized as 512K 16 bit words Also included are 512K bytes of flash memory organized as DOS drives A and B A 40 Megabyte M Systems DiskOnChip is added to the 32 pin DIP socket on the controller board and acts as drive C There is a switching power converter on the controller which can accept 7 34 volts DC Nominal current consumption is 250mA at 12 volts with 10Base T Ethernet selected Specifications for the Ether 6 are Processor Intel 386Ex 25MHz Operating System
6. 18 MB Reg 40015 AO Fan Ctl Offset SPT MB Reg MB Reg MB Reg MB Reg MB Reg MB Reg MB Reg MB Reg Fld 10 DO Damper Forced Open CTL Fld 11 DO Damper Forced Close CTL Fld 12 DO OCC UNOCC Mode CTL Fld 13 DO Local SPT Control Fld 14 DO Min Setpoint Forced Fld 15 DO Max Setpoint Forced Pld 16 DO Temp Flow Mode CIL Fld 17 DO Recalibration CTL Fld 0 OFF 0 state 0 OFF 0 state 0 OCCUPIED 0 state 16 DISABLED 1 state 0 NORMAL 0 state 0 NORMAL 0 state 0 TEMP 0 state 0 OFF 0 state The display is slightly different for the BACnet flavor of this gateway because BACnet uses Object Type Instances rather than registers The order is slightly different but the data is identical Here is the same display in BACyap format ty DEVICE 1 is field device subdevice type 4 0 1 TagID VAV 4 TRUNK 1 Dev 1 has 54 objects under it 1st one at 54 BACnet ID 1 BACnetID 2 BACnetID 3 BACnet ID 104 BACnetID 4 BACnet ID 105 BACnetID 5 BACnet ID 106 BACnetID 6 BACnet ID 107 BACnet ID 7 BACnet ID 8 BACnet ID 9 BACnet ID 10 BACnet ID 111 BACnet ID 11 BACnet ID 112 BACnet ID 12 BACnet ID 113 BACnet ID 13 BACnet ID 114 BACnet ID 14 BACnet ID 115 BACnet ID 15 l BACnet ID 16 BACnet ID 201 BACnet ID 202 AD Zone Temperature NEIN cU AD Active Heating SPT Used Fld
7. 30005 5 30006 6 30007 7 30008 8 30009 9 30010 10 30011 11 30012 12 30013 13 30014 14 30015 15 30016 16 30017 17 30018 18 30019 19 30020 20 30022 22 30023 23 Control Reg Inst 40004 104 40005 105 40009 109 40014 114 40017 117 40018 118 40019 119 40020 120 Voyager Usage Zone Temp Active Heating Setpoint Active Cooling Setpoint Occupied Heating Setpoint Occupied Cooling Setpoint Economizer Damper Position Economizer Minimum Position Supply Air Temp Return Air Temp Outside Air Temp Supply Air Actual Setpoint Supply Air Cooling Setpoint Supply Air Pressure Supply Air Pressure Actual Setpoint Supply Air Pressurel Setpoint VFD Speed Control Power Exhaust Setpoint Control Number of Cooling Stages Used Intellipak Usage Zone Temp Active Heating Setpoint Active Cooling Setpoint Occupied Heating Setpoint Occupied Cooling Setpoint UnOCC Heating Setpoint UnOCC Cooling Setpoint Economizer Damper Position Economizer Minimum Position Supply Air Temp Return Air Temp Outside Air Temp Supply Air Actual Setpoint Supply Air Cooling Setpoint Supply Air Pressure Space Air Pressure Supply Air Pressure Setpoint Space Air Pressure Setpoint Supply Air Heating Setpoint Morning Warmup Setpoint Circuit 1 Evaporator Temp Circuit 1 Condenser Temp Ranges amp
8. At about 30 BACnet IP packets per second directed TO THE GATEWAY the Gateway will saturate any more packets than that and they are lost Any more than that will cause retries and actually SLOW DOWN the BACnet system This is because BACnet IP is a connectionless system the requestor sends a packet to the Gateway and the network gives it a best effort to deliver it If the network is saturated and our Gateway does not receive the packet the requestor has to time out and then retries its request packet 29 This may mean that control logic will stall depending upon the software implementation in the conttoller until that retry occuts A Few Words About Controls The Trane devices are not state of the art they were designed in the 1980 s and 1990 s Older VAV 1 devices are 1200 baud slow and the newer devices are only 9600 baud OK but not great As such their controls are leisurely and have several limitations We want you to be aware of these limits when you design your logic and controls in your front end system First you should NOT just continuously write output values to the controllers Most of the parameters you WRITE that is AO and BO points are not only changing things within the RAM of the Smart II controller but that value is also written to EPROM This is safe because the last thing you wrote to a Trane device it remembers usually and that value is what is used when it has a power bump
9. Control Mode Status Fld 0 COOL 0 state BACnet ID 303 DI Heating Status Fld 0 OFF 0 state BACnet ID 410 DO Damper Forced Open CTL Fld 0 OFF 0 state BACnet ID 310 DI Damper Forced Open Fld 0 NORMAL 0 state BACnet ID 411 DO Damper Forced Close CTL Fld 0 OFF 0 state BACnet ID 311 DI Damper Forced Closed Fld 0 NORMAL 0 state BACnet ID 412 DO OCC UNOCC Mode CTL Fld 0 OCCUPIED 0 state BACnet ID 312 DI OCC UNOCC Mode Cd Fld 0 OCCUPIED 0 state BACnet ID 413 DO Local SPT Control Fld 16 DISABLED 1 state BACnet ID 313 DI Local SPT Status Fld 16 DISABLED 1 state BACnet ID 414 DO Min Setpoint Forced Fld 0 NORMAL 0 state BACnet ID 314 DI Min Setpoint Forced Fld 0 NORMAL 0 state BACnet ID 415 DO Max Setpoint Forced Fld 0 NORMAL 0 state BACnet ID 315 DI Max Setpoint Forced Fld 0 NORMAL 0 state BACnet ID 416 DO Temp Flow Mode CTL Fld 0 TEMP 0 state BACnet ID 316 DI Temp Flow Mode FB Fld 0 TEMP 0 state BACnet ID 417 DO Recalibration CTL Fld 0 OFF 0 state BACnet ID 317 DI Recalibration Status Fld 0 OFF 0 state E very will display the SAME selected point on EVERY device in the Gateway S elect With Select you can target a specific point for the Device that you have targeted using the Devices menu PNT elect Al D etail Every X itS PNT You may select an OBJ
10. Temp Circuit 2 Condenser Temp Outside Air Humidity Outside Air Enthalpy Return Air Humidity Return Air Enthalpy Computed Host Setpoint Vane Position open Fan Status Ctl Diagnostic Reset Required Compressor A Status Compressor B Status Compressor C Status Compressor D Status Economizer Active Compressors Condition Shutdown Mode Control Supply Fan Mode OCC UNOCC Mode Control Morning WarmUp Enable Ranges amp Notes Deg F Range Note 1 Deg F Range Note 1 Pct Range Note 2 BTU Lb Range Note 4 Pct Range Note 2 BTU Lb Range Note 4 Range is dependent Pct Range Note 2 0 Off 1 On 0 OK 1 Reset Reqd 0 Off 1 On 0 Off 1 On 0 Off 1 On 0 Off 1 On 0 Normal 1 ECON 0 Off 1 FAULT 0 Off 1 FAULT V gers 1 Remote l Paks 1 Shutdown 0 ForceOn 1 AUTO 0 OCC 1 UNOCC 0 Off 1 Enabled 0 Off 1 Enabled 0 Off 1 Enabled 0 Off 1 Enabled 0 Normal 1 Forced 0 Normal 1 Forced NOTES Range Note 1 This is a real number value BACnet uses this directly In the Modbus case use t values in TENTHS of degrees Low Range 0 0 High Range 409 5 on a 4095 counts scale Range Note 2 This is a real number value BACnet uses this directly In the Modbus case use Low Range 0 0 and High Range 100 0 Range Note 3 This is a pressure measurement in units of inches of water column BACnet uses this directly In the Modb
11. XDOS MS PC DOS 3 3 compatible Memory 1M SRAM 512K Flash 40MB Flash Ethernet 10BASE T NE2000 compatible automatic media detection Link status and Activity LEDs Serial Port 1 RS 232 with 5 handshake lines COM1 address Ox3F8 IRQ4 115200 baud maximum Serial Port 2 RS 232 no handshaking or RS 485 half duplex COM2 address 0x2F8 IRQ 3 115200 baud maximum Serial Port 3 6 RS 232 with handshake lines 16554 UART COM3 6 115200 baud maximum 16 byte Rx and Tx FIFO Digital I O 5 Bits P1 4 P1 7 amp P3 1 Pin configurable as input or output 8mA souce sink Watchdog Hardware 1 6 second timeout Generates board wide Reset Clock Calendar Hardware battery backup Supply Power 7 34V unregulated DC 10 3 Watts Humidity 5 90 non condensing Temperature 4 to 158 F 20 to 70 C Weight 53 oz 1 5 kg Dimensions 8 30 x 6 76 x 2 28 210 8mm x 171 7mm x 57 9mm Connecting Power to the Gateway Power connections ate made by removing the 2 screws on either side of the terminal block enclosure Follow the diagram below for proper terminations z 120 Volt Neutral Picture 1 0 Connecting the power 20VoteNewwal 120 Volt Hot Connecting Trane Trunks to the Gateway Typically Trane device trunks possibly several trunks are connected to a Trane BCU BACnet Control Unit with various combinations of Com1 Com2 Com3 Com4 and Com5 trunks each via a special card i
12. it to the lowest BACnet priority value that you will allow to do forced controls This means that any command from the host system with a priority from 1 to this value will give the I O point a force before doing the actual control And any command from the host system that has a BACnet priority lower than this up to priority 16 will put the point in auto so that the local controls then take over if any are attached to that I O point 31 Modbus amp BACnet Point Mapping Device Point Mapping for VAV 1s and VariTranes Monitor Reg Inst ANALOGS 30001 1 30002 2 30003 3 30004 4 30005 5 30006 6 30007 7 30008 8 30009 9 30010 10 30012 12 30013 13 30014 14 30015 15 30016 16 30017 17 30018 18 30019 19 30020 20 30021 21 30022 22 30023 23 30024 24 30025 25 30026 26 Control Reg Inst 40004 104 40005 105 40006 106 40007 107 40009 109 40012 112 40013 113 40014 114 40015 115 40016 116 40017 117 40018 118 40019 119 40020 120 40021 121 40022 122 Older VAV 1 s Usage Zone Temp Active Heating Setpoint Active Cooling Setpoint Occupied Heating Setpoint Occupied Cooling Setpoint Unoccupied Heating Setpoint Unoccupied Cooling Setpoint Damper Valve Position Maximum Flow Box Size Current Flow CFM Minimum Heating Flow Maxi
13. might not want to use those as your Device Instance numbers if you have some other addressing scheme or a number of these gateways on a system The BACNET OFFSET allows you to have these devices show up as a different set of Instances rather than just 1 to 240 The number that you specify is added to the internal device number Hence if your offset is 5000 and you are interested in local device 84 the fourth gizmo on trunk 2 the BACnet system sees this device as Instance 5084 Also if you have multiple gateways on one system you will need to have each of them be a different Network Number set via the BACNET NETWORK parameter in the Gateway ini file This is so that there is no confusion between the devices on one gateway and any others they all could have local device numbers be the same by having different Network Numbers for each gateway they become unique as far as the underlying BACnet protocol works A rarely used option is to seta BACNET PORT parameter the default is port 47808 which is BACO in hex Add this line if necessary There are some BACnet host systems that require another parameter setup so that the BACnet Network Data Unit matches the Application Data Unit You would add the line MATCH NPDU APDU TRUE if your BACnet front end requires this Another rarely used option is to add a couple special AV points that you can write to in the gateway fot each device This was a special feature added f
14. 012 AI Min Heating Flow Fld 15 gt 15 00 MB Reg 30013 AI Max Cooling Flow Fld 90 gt 90 00 MB Reg 30014 AI Min Cooling Flow Fld 90 gt 90 00 MB Reg 30015 AI Fan Cd Offset Value Fld 90 gt 90 00 MB Reg 30016 AI AUX Temperature Fld 74 gt 74 00 MB Reg 10001 DI Current Fan Status Fld 0 OFF 0 state MB Reg 10002 DI Control Mode Status Fld 0 COOL 0 state MB Reg 10003 DI Heating Status Fd 0 OFF 0 state MB Reg 10010 DI Damper Forced Open Fld 0 NORMAL 0 state MB Reg 10011 DI Damper Forced Closed Fld 0 NORMAL 0 state MB Reg 10012 DI OCC UNOCC Mode Cd Fld 0 OCCUPIED 0 state MB Reg 10013 DI Local SPT Status Fld 16 DISABLED 1 state MB Reg 10014 DI Min Setpoint Forced Fld 0 NORMAL 0 state MB Reg 10015 DI Max Setpoint Forced Fld 0 NORMAL 0 state i MB Reg 10016 DI Temp Flow Mode FB Fld 64 TEMP 1 state MB Reg 40004 AO Occupied Heating SPT Fld 71 gt 71 00 MB Reg 40005 AO Occupied Cooling SPT Fld 76 gt 76 00 MB Reg 40006 AO UnOccupied Heating SPT Fld 67 gt 67 00 MB Reg 40007 AO UnOccupied Cooling SPT Fld 80 gt 80 00 MB Reg 40011 AO Max Heating Flow SPT Fld 16 gt 16 00 MB Reg 40012 AO Min Heating Flow SPT Fld 15 gt 15 00 MB Reg 40013 AO Max Cooling Flow SPT Fld 90 gt 90 00 _ MB Reg 40014 AO Min Cooling Flow SPT Fld 25 gt 25 00
15. 3 MB 123 is ON LINE amp RELIABLE 15 A larms Not available with Modbus does not support alarm states With BACnet this does have meaning but only for points that have alarm states or limits intrinsic alarms defined At the present time the Centaurus Prime gateways do NOT support BACnet alarming either intrinsic or algorithmic C ontrolled This command will display all controlled points for all Modbus or BACnet devices SUM Devices A larms C ontrolled U nreliable X it C DEVICE 1 is field device subdevice type 4 0 1 Gateway has NO controls to do DEVICE 61 is field device subdevice type 4 0 1 Gateway has NO controls to do DEVICE 121 is field device subdevice type 4 0 1 Gateway has NO controls to do DEVICE 122 is field device subdevice type 5 0 0 Gateway has NO controls to do DEVICE 123 is field device subdevice type 6 0 0 Gateway has NO controls to do SUM Devices A larms C ontrolled U nreliable X it U DEVICE 1 is field device subdevice type 4 0 1 PO 7 Action is UNRELIABLE PO 6 Action is UNRELIABLE COOLING Control is UNRELIABLE gt HEATING Control is UNRELIABLE Devices Menu Options The Devices menu is used to display all of the configured devices A or to target a specific device and get data about it A View all configured devices DEV Select AJ
16. 71 gt 71 00 AT Active Cooling SPT Used Fld 76 gt 76 00 AO Occupied Heating SPT Fld 71 gt 71 00 AT Occupied Heating SPT Val Fld 71 gt 71 00 AO Occupied Cooling SPT Fld 76 gt 76 00 AT Occupied Cooling SPT Val Fld 76 gt 76 00 AO UnOccupied Heating SPT Fld 67 gt 67 00 AT UnOccupied Heat SPT Val Fld 67 gt 67 00 AO UnOccupied Cooling SPT Fld 80 gt 80 00 AD UnOccupied Cool SPT Val Fld 80 gt 80 00 AD Damper Valve Pos Fld 24 gt 24 00 AD Maximum Flow Size Fld 16 gt 1100 00 AD Present CFM Flow Fd O gt 0 00 AO Max Heating Flow SPT Fld 16 gt 16 00 AT Max Heating Flow Fld 16 gt 16 00 AO Min Heating Flow SPT Fld 15 gt 15 00 AT Min Heating Flow Fld 15 gt 15 00 AO Max Cooling Flow SPT Fld 90 gt 90 00 AT Max Cooling Flow Fld 90 gt 90 00 AO Min Cooling Flow SPT Fld 25 gt 25 00 ATD Min Cooling Flow Fld 90 gt 90 00 AO Fan Ctl Offset SPT Fld 3 gt 3 00 AD Fan Ctl Offset Value Fld 90 gt 90 00 AT AUX Temperatute Fld 73 gt 73 00 AV Analog Value 1 User Fld 22 gt 22 00 AV Analog Value 2 Use Fld 10 gt 10 00 19 BACnet ID 203 AV K Packets TX RX Today Fld 27 gt 27 00 BACnet ID 204 AV TX Error Rate vike pesce 5i BACnet ID 205 AV RX Error Rate Fid 0 gt 0 00 BACnet ID 301 DI Current Fan Status Fld 0 OFF 0 state BACnet ID 302 DI
17. 9200 or 0 i Modbus is unused The parity specification should only be N O or E This will set the Parity to None Odd or Even if you are using the Modbus RTU protocol If you ate using Modbus IP or BACnet IP then the BAUDO line is irrelevant The lines tor BAUD1 BAUD2 BAUD3 and BAUD4 must be set for the respective Device baud rates which will be 1200 or 9600 depending up whether you have older VAV or newer ones respectively If you have unused trunks then the baud rate should be set to 0 as seen in the example below for BAUD3 and BAUD4 See Uploading and Downloading files to the Gateway for information on accomplishing the upload download procedures The line for IP ADDR is required only if you have the Ethernet in use i e Modbus TCP or BACnet IP protocols in operation You have to set up the FIXED IP Address of this gateway computer in two places here in the GATEWAY INI file and also in the SOCKET CFG file more on that later But just be aware that they MUST match If the SOCKET CFG specifies a different IP address from the GATEWAY INI file you will never receive anything from the Gateway For the BACnet IP Annex J protocol a couple other global parameters are necessary Internally the gateway maps devices in a very simple fashion Devices 1 through 60 on trunk 1 Devices 61 through 120 on trunk 2 Devices 121 through 180 on trunk 3 and Devices 181 through 240 on trunk 4 But you
18. ACnet controllable object that has been released from all controls note the line that says No elements in priority control array CTL S elect P riority Control R elease D etail X it D BACnet Obj ID 113 Type AO Max Cooling Flow SPT No elements in priority control array Field Unit Subunit 4 0 Field Address 30001 Object Flags Errors 0 Field In Out Counts 0 0 0 Field Value 0 000 Field Hi Lo Range 10000 000 0 000 y value for EACH priority level Watch Menu Options The Watch menu will let you select various methods for monitoring the real time data from the field Q uiet Use the Q key to halt any of the following monitoring options 1 2 3 4 to Watch Trunks Enter a Trane VAV trunk to monitor This will display the field scan of all Trunk devices and the status of their points in real time What is displayed below is the Modbus variant it shows the register numbers in the second column the BACnet variation is the same except it shows the BACnet object instances in the second column WCH Q uiet 1 2 3 4 to watch trunks V erbose Modbus X it 1 TRUNK 1 is now being MONITORED 24 SCAN Trunk 1 Device 1 ATERS 00O Zone Temperature Counts AI 30002 Active Heating SP Used Counts AI 30003 Active Cooling SP Used Counts AI 30003 Active Coolin
19. Cnet version This option will let you control the selected point at whatever priority level you are currently at CTL S elect P riority C ontrol R elease D etail X it C CTL You may enter a new value to set the selected object to Enter a field value 0 or 1 for digitals valid number for analogs 70 The new value of the object will be 0 Adding to Control Queue at 2 Device 6 AO 114 Queued Control Trunk 1 Device 6 AO 114 to 70 000 pri 4 R elease This option will let you release control for the selected point at your selected priority level valid for the BACnet variant of the Gateway only CTL G elect P riority C ontrol R elease D etail X it R 23 RLS Are you sure that you want to RELEASE this object ARE YOU SURE If so enter Y for Yes and then the ENTER key or any other keys if you do NOT want to RELEASE the object Y The object AO 114 has been released from Priority 4 D etail will display details associated with the selected point Let s first look at a Modbus vetsion of an object s detail CTL G elect P riority Control R elease D etail X it D MB Address 30001 Type AI Zone Temperature Field Unit Subunit 4 0 Field Address 30001 Object Flags bits 0 Error Counter 0 Field In Out Counts 0 0 Field Value 0 000 _ Field Hi Lo Range 255 000 0 000 Eng Units Deg F i And this is what is displayed for an example B
20. D TXT i 9 Commissioning 9 communication statistics 17 Creating and Downloading the GATEWAY INI file 9 CS485 i 4 5 Database Generation 13 Downloading i 9 12 14 27 Gateway Overview 8 jumpers 5 6 37 Local Mode 13 Memory 2 Modbus device numbers 15 Modbus Master i 1 4 7 Modbus Network 1 Modbus Point Mapping 32 Modbus RTU 1 26 Power 3 Power Supply 1 Processor 2 Range Note 1 33 35 36 Receive File 28 RS232 5 7 RS 232 1 2 4 5 RS485 i 1 5 6 Send File 27 Serial Port 2 Setting up the BACnet System 29 30 Setting up the Modbus Driver 28 Smart II Device Buss 1 SOCKET CFG 12 targeted device 18 Uploading i 9 14 27 Watch i 13 24
21. ECT ID to target into Enter a valid existing Object ID 1 to 49999 30001 The object at ID 30001 is now selected PNT Select Al Detail Every X it D MB Address 30001 Type AI Zone Temperature Field Unit Subunit 4 0 Field Address 30001 Object Flags Errors 0 0 Field In Out Counts 0 0 Field Value 0 000 Field Lo Hi Range 0 000 255 000 Eng Units Deg F 20 D etail will display details associated with the selected point for BACnet points in a format like this NT S elect Al D etail B very X it D BACnet Object ID 12 Type AI Object Name Conf Room Zone Temp Object Description West wall temp sensor 1 floor Conf Room Field Unit Subunit 4 0 Field Address 30001 Object Flags Errors 0 0 Field In Out Counts 0 0 Field Value 0 000 Field Lo Hi Range 0 000 255 000 Eng Units Deg F Control Menu Options This is slightly different for Modbus and BACnet In BACnet you control things at sixteen different priority levels and you can release control from any particular level Let s consider the simpler Modbus case first Control just happens when you select a point and give it a new value No priorities at all The last control to a point wins and stays until some other control is given to that point Now before you can control a point object you must first have selected a device number and point number s
22. Notes Deg F Range Note 1 Deg F Range Note 1 Deg F Range Note 1 Deg F Range Note 1 Deg F Range Note 1 Deg F Range Note 1 Deg F Range Note 1 Pct Range Note 2 Pct Range Note 2 Deg F Range Note 1 Deg F Range Note 1 Deg F Range Note 1 Deg F Range Note 1 Deg F Range Note 1 IWC Range Note 3 IWC Range Note 3 IWC Range Note 3 Percent Range Note 2 Voyagers Percent Intellipaks Deg F Voyagers 0 to 3 Intellipaks Deg F Deg F Range Note 1 Deg F Range Note 1 34 Monitor Reg Inst 30024 24 30025 25 30026 26 30027 27 30029 29 30030 30 30031 31 30032 32 DIGITALS 10001 301 10002 302 10003 303 10004 304 10005 305 10006 306 10007 307 10008 308 10009 309 10010 310 10011 311 10012 312 10013 313 10014 314 10015 315 10016 316 10017 317 10018 318 Control Reg Inst 40031 131 10 410 11 411 12 412 13 413 14 414 15 415 16 416 17 417 18 418 Voyager Usage Fan Status Ctl Diagnostic Reset Required Compressor A Status Compressor B Status Economizer Active Compressor A Condition Compressor B Condition Control Source Supply Fan Mode OCC UNOCC Mode Control Economizer Mode Enable Compressors Enabled Heating Enabled Aux Heating Enabled Force Heating Force Cooling IntelliPak Usage Circuit 2 Evaporator
23. UNIX thing Local Mode Menu Options Once connected via the local mode port you may press lt enter gt at any time to display this top level menu When you type H lt enter gt you will get the following Hit a single key to get to a submenu Your Options are H for Help which gives you this screen S for Summary which allows you to get various status summaries D for Devices which allows you to manage and get data on devices P for Points which allows you to manage and get data on points C for Control which allows you to control various field objects W for Watch which allows you to watch protocol streams A for AutoDisc which allows you to auto discover trunks X for X it which exits this gateway program Hjelp S ummary D evice P oint C ontrol W atch A utoDisc X it L X will always take you back to the top level menu options Auto Discovery and Database Generation Before you can use any of the other menu options you must first create your database by using the A option which will give you the following text AUTODISCOVERY You may select a TRUNK to auto discover Enter a TRUNK NUMBER 1 through 4 1 Trunk 1 will now be auto discovered AUT A uto Discovery S ave Discovery X it State AutoDiscovety on Trunk 1 VAV Device 1 State AutoDiscovety on Trunk 1 VAV Device 2 State AutoDiscovety on Trunk 1 VAV Device 3 State AutoDiscov
24. ange Note 1 30016 16 40016 116 Heating Setpoint Low Limit Heating Setpoint Low Limit Deg F Range Note 1 30017 17 40017 117 Cooling Setpoint HighLimit Cooling Setpoint High Limit Deg F Range Note 1 30018 18 40018 118 Cooling Setpoint Low Limit Cooling Setpoint Low Limit Deg F Range Note 1 30026 26 Thermostat Temp Position Thermostat Temp Position Deg F Range Note 1 10001 301 Fan Status 0 Off 1 On 10002 302 Heating Mode Status Heating Mode Status 0 Off 1 Heating 10003 303 Cooling Mode Status Cooling Mode Status 0 Off 1 Cooling 10004 304 Control Status 0 Off 1 Running 10010 310 10 410 Control Source O Local 1 Remote 10012 312 12 412 OCC UNOCC Mode Control OCC UNOCC Mode Control 0 OCC 1 UNOCC NOTES Range Note 1 This is a real number value BACnet uses this directly In the Modbus case use t values in TENTHS of degrees Low Range 0 0 High Range 409 5 on a 4095 counts scale Range Note 2 This is a real number value BACnet uses this directly In the Modbus case use Low Range 0 0 and High Range 100 0 36 Index A larms 15 16 C ontrol 13 14 21 22 23 C ontrolled 15 16 D etail 16 17 18 19 20 21 22 23 24 D evices 15 H elp 13 M odbus 24 26 S elect 16 17 18 19 20 21 22 23 24 V erbose 24 25 Devices Menu Options 16 Point Menu Options 17 Summary Menu Options 15 220 or 240 Volts AC 1 Auto Discovery 13 BAU
25. bus amp BACnet Point Mapping 32 Device Point Mapping for VAV 1 s and VariTrane Controllers 32 Device Point Mapping for VOYAGERs and Intellipak Controllers 34 Device Point Mapping for TUCs Terminal Unit Controllers 36 Index 37 CENTAURUS PRIME Ci Gateway Installation Basic Information Summary Te section will help to give a basic overview and quick summary of the procedures needed to install the Trane 485 Gateway Panel Detailed instructions are also provided later in this guide The Centaurus Prime Trane 485 Gateway allows any front end system Modbus Master or BACnet IP that communicates using the either industry standard Modbus ot BACnet protocols to communicate to Trane VAV Voyager Reliatel IntelliPak and Terminal Unit Controler TUC field equipment The Trane field devices will appear to the front end system as a series of Modbus SLAVE devices or BACnet Devices Real time point data from the Trane VAV Voyager IntelliPak TUC controllers is then mapped to equivalent registers coils and bits on the Modbus system or as AI BI AO and BO objects on the BACnet system All Operations ate transparent to the user and the host computer ICON KEY L7 Valuable information Connections to the Trane 485 Gateway are simple and clearly marked They consist of e Power Supply 120 Volts AC optionally 220 or 240 Volts AC Trane 485 VAV Device trunks up to four e Modbus RTU Network RS 485 or IP or BACnet IP Network
26. corner of the PC You must set the IP address of the Gateway to a static fixed address on the segment that you are in This is done with the CONFIG TXT file described in the next chapter 2 Serial Link If you have ordered the Trane 485 Gateway with the Modbus RTU protocol option then the Modbus connection is made with the CS485 line driver included in the Gateway cabinet if the product has been ordered with a Modbus RTU front end The CS485 line driver is an RS 232 to RS 485 interface converter It allows an RS 232 device to reliably transmit data over long distances up to 4000 feet The CS485 has many features not normally found in typical line drivers and is intended for operation in harsh industrial environments You must also modify the GATEWAY INI file to specify the baud rate and parity of the Modbus RTU connection All Centaurus Prime Gateways act as a seties of Modbus slaves and can be a large number of logical devices but it acts as only one electrical device on the Modbus RTU trunk The Gateway can act at any baud rate from 4800 baud to 38400 baud 38400 baud is not recommended except for very short distances Even Odd and None are the valid parity options The CS485 may be used in point to point applications as well as multi drop applications using either 4 wire or 2 wire configurations Up to 32 devices may be connected together on one communication line The CS485 has 1500 volt optical isolation between the RS 232 si
27. d used and presented as MKS values That is Degrees F will be converted to Degrees C all temperature objects CFM will be converted to LPS all air flow and fluid flow objects Square Feet will be converted to Square meters e g duct size objects Inches Water Column is converted to MilliBars for some pressure objects PSI is converted to kilopascals for the rest of the pressure objects BTU Lb is converted to kj kg for enthalpy objects O O O O O Here s an example of an INI file at a particular job site BAUDO is used for the HOST CHANNEL Baud Rate the Modbus RTU Protocol and i _ Parity settings N None O Odd E Even BAUDO 9600 N V Required for 4 ports Set the baud rate set to 0 if channel unused H Valid baud rates are 1200 older VAV 1 devices d 9600 newer VAV devices III IV V etc Af 0 means that nothing is on that trunk gt BAUDI 1200 BAUD2 9600 BAUD3 9600 BAUDA 0 ceti Mele du pe M EE _ IP ADDR is used for the IP address of what you want this box to be Andit MUST match the SOCKET CFG IP Address M IP ADDR 192 168 0 204 _ BACNET_NETWORK is used for what BACnet network number we are on 11 BACNET NETWORK 1042 BACNET OFFSET is what we will add to the local device numbers 1 240 to yield the BACnet object ID instances of each mapped BACnet device I BACNET OFFSET 1042000
28. de and the RS 485 side The RS 485 lines are protected with 2 stages of surge protection and jumpers allow complete configuration of terminating and pull up down functions Configuring the CS485 The full manual for the CS 485 is available on the Centaurus Prime web site www centaurusprime com While it is very lengthy and technical we recommend that you download and review the full manual if you are using the Gateway in unusual applications e g with radio modems Ethernet converters line drivers with delays etc The CS 485 allows for many options and a unique data mode that no other RS 485 converter on the market has It is extremely robust and adaptable The CS485 s default configuration is for 2 wire RS485 Following are setup parameters for RS485 2 wire RS422 4 wire and optionally RS232 RS 485 RX and TX Jumpers J4 Enable pull up resistor for RX line J3 Enable pull down resistor for RX line J2 Terminate RX pair with 120 ohm resistor J7 Enable pull up resistor for the TX line J6 Enable pull down resistor for the TX line J5 Terminate TX pair with 120 ohm resistor J8 IN Enables 2 wire operation for both RX and TX pairs l Dual port operation OUT Enables 4 wire operation RX is receive pair TX is transmit pair RS485 Communications 5Udc COMMON EARTH CHASSIS FUTT a J l l FE OELAY2 CTS DELAY1 D Installed jumpers 2W 4W Baud0 Baud1 Da
29. ee Modbus point map Chapter 3 S elect Use this to select a valid point Here is the Modbus variant CTL Select Control D etail X it S CTL You may select an OBJECT ID to target into Entet a valid existing Object ID 0 to 49999 11 The object at ID 1 is now selected CTL S elect P riority C ontrol R elease D etail X it S CTL You may select an OBJECT ID to target into Entera valid existing BACnet Object TYPE ID 0 to 4 1 to 16000 1 114 The object with Type 1 and Instance 114 is now selected 21 C ontrol MODBUS version This option will let you control the selected point Here is a simple MODBUS example of a digital point control to off zero CTL S elect Control D etail X it C CTL You may enter a new value to set the selected object to Enter a field value 0 or 1 for digitals valid number for analogs 0 The new value of the object will be 0 Adding to Control Queue at 2 MB 1 Register 1 Queued Control Trunk 1 MB 1 Register 1 to 0 000 OK so much for simple Now let s talk about BACnet alias BADnet There are sixteen priorities These are given below Priority BACnet Default Comments Manual Life Safety Trane User Emergency Automatic Life Safety Trane Critical Programmatic no mins Miscellaneous Trane Minimum on off Miscellaneous Trane User High Critical Equipment Control Trane Custo
30. er a minimum of one minute you can force it into another mode Too fast operations changing modes may possibly not only confuse the Trane devices but it has been known to cause them to reset or fail Third there is a way to override any physical I O point independent of what mode the controller is in You can force a physical I O point via one of two mechanisms From then on all controls and adjustments that you do to that physical I O point will go straight out and any automatic controls that would otherwise control the point are thwarted Then you can set that physical I O point back into auto and the automatic controls as computed by the controller will then go out So how to do this force auto In MODBUS systems there ate eight force auto points coils 51 through 58 for DO 0 through DO 5 AO 6 and AO 7 respectively that you must set to 1 to set the physical I O point into forced mode Then you can do your controls to the control points coils 1 through 6 and output register 40009 and 40010 respectively When you are done 30 and want to go back to automatic then set coils 51 to 58 back to 0 and the point s will go back to automatic mode Now in BACnet systems this is the default operation also But some people may want to use the BACnet priority system so that there are no extra points If so the GATEWAY INI file should be modified to have the OVERRIDE PRI line added and set
31. ery on Trunk 1 VAV Device 4 13 VAV 1 4 Discovered on Trunk 1 State AutoDiscovety on Trunk 1 VAV Device 5 State AutoDiscovery on Trunk 1 VAV Device 6 State AutoDiscovery on Trunk 1 VAV Device 7 0000000000000 When Auto Discover is invoked the Gateway will scan for all VAV device addresses possible on the requested trunk As you can see in the example above Trane 485 Device address 4 was discovered which was a VAV 1 type device This process should be completed for all trunks that have Trane 485 devices When all trunks have been Auto Discovered you can then use the S ave Discovery option lt 7 Note 1 This is a lengthy process taking 5 10 minutes per trunk on a 1200 baud trunk older VAV 1s a lot quicker with the newer 9600 baud VariTrane Voyager and IntelliPak devices 7 Note 2 If a controller is dead unplugged or not communicating when Auto Discover is done you can manually add the controller to the discovered data file You must download the data file to your PC edit it to add a line about the missing controller and then upload the modified file back into the Gateway See Uploading and Downloading files to the Gateway Files that are in the Gateway on drive C and their purpose ate STARTUP BAT Startup Batch file GATEWAY INI Sets all baud rates IP Address BACnet parameters SOCKET CFG IP Configuration file SOCKETP EXE TCP IP Socket stack NE2000 COM Etherne
32. eway And in fact the setpoints will be verrrrry odd the usual Trane undefined value of 3276 7 degrees might be toasty A hidden command has been implemented at the Main Menu level of the local mode Z This command will send the default setpoints Trane factory recommendations down to the Intellipak This might help you in diagnosis of various control problems Refer to the Trane manuals for the default values OCC AUTO 71 Deg cooling setpoint etc 26 Uploading and Downloading files to the Gateway In order to upload download files to the Gateway you will need to use a VI 100 Terminal emulator Hyperterminal or the like You will need to set it up to use a Comm Port Comm1 typically and use the following settings Baud 9600 Databits 8 Stop bits 1 Parity None and no Flow Control The Gateway has two utilities for transferring files UP COM is used to send files to the Gateway and DOWN COM is used to received files from the gateway When you ate connected to the gateway in local mode hit X it once or twice and you will be asked to type YES to quit the program which will take you to DOS prompt Sending a file to the Gateway uploading From the dos prompt you must type UP filename filename being the name of the file to send with extension The response will look like the following C gt up test txt _ Ready start X modem upload now Press CNTL C to abort In Hyperterm
33. f 3 3 recommended Setting up the BACnet System After the Gateway is ready to go and you have your database configured one of the most important steps is to make sure that you have your BACnet system configured properly to communicate with the Centaurus Prime Gateway The most important parameter that some BACnet systems need to know is whether a device supports READ MULTIPLE and WRITE MULTIPLE services The Centaurus Prime Gateways only support READ MULTIPLE not WRITE MULTIPLE services All Centaurus Prime Gateways conform to the BACnet PICS statement published and available on our web site www CentaurusPrime com There is some difference in the way many host systems work Some require our gateway to be on a separate network number e g ALC some prefer the gateway to be on the same network e g Alerton and some don t care most In the GATEWAY INI you should change the parameter BACNET_NETWORK to an appropriate value Typically installers have chosen the BACNET NETWORK to be a certain number and then made the BACNET OFFSET to be 1000 times that number so that the BACnet instance numbers of the devices are all prefixed by the network number As an example if you set the BACNET NETWORK number to 333 and the BACNET OFFSET to 333000 then you would end up with BACnet device numbers 333001 333002 333003 etc on network 333 Makes it simple no Just a suggestion DO NOT over tax the BACnet network
34. from the higher levels the next lowest control is issued Hence after the fire is over the fan that was overridden ON might go OFF from its priority 7 demand limiting shutdown But if that priority 7 control had been released then the control descends to the priority 15 time schedule control You have to know what your plant s priority system is and what each point s capabilities and control options are this is not a trivial control philosophy The Relinguish Default value if any is specified is the control that is given out to a point if there is NOTHING in this priority array that is all 16 levels of control have been released If there is no Relinquish Default value then the point just sits there at it s last control Now before you can control a point object you must first have selected a device number a point type instance and a priority Then you can set the control value and that value will go into the object s priority array That does NOT mean that control will be issued remember since you may be at a lower priority level than what is controlling the point right now P riority BACnet ONLY Use this to select the priority that you will issue subsequent control and release operations at CTL S elect P riority C ontrol R elease D etail X it P PRI Enter a PRIORITY to do your controls at 1 to 16 4 Control and Release Operations will now be done at Priority 4 C ontrol BA
35. g SP Used Counts AO 40004 OCCUPIED Heating SPT Counts AI 30004 OCC Heating Value Counts AO 40005 OICICIUPADSID CioxodL1usig GEI Cows AI 30005 OCC Cooling Value Counts AO 40006 UNOCCUPIED Heating SPT Counts AI 30006 UNOCC Heating Value Counts AO 40007 UNOCCUPIED Cooling SPT Counts AI 30007 UNOCC Cooling Value Counts AI 30008 Damper Valve Pos Counts AI 30009 Maximum Flow Size Counts AI 30010 Present CFM Flow Counts AO 40011 Max Heating Flow SPT Counts B 3O OAL Max Heating Flow Counts AO 40012 Min Heating Flow SPT Counts AI 30012 Min Heating Flow Counts AO 40013 Max Cooling Flow SPT Counts AI 30013 Max Cooling Flow Counts AO 40014 Min Cooling Flow SPT Counts AI 30014 Min Cooling Flow Counts AO 40015 ieu Cl Quri exe SPU Clos AL 30015 Fan Ctl Offset Value Counts DE LOO Current Fan Status Raw Value DI 10002 Control Mode Status Raw Value DI 10003 Heating Status Raw Value DO 10 Damper Force Open CTL Raw Value V erbose When V is pressed while in monitor mode the displayed as well for each scanned device wwe INON gum WIE SCAN Trunk 1 TO Trunk 1 00 1C AA 3D Set up TIMEOUT Trunk 1 to be 6153193 Incompl full packets TRANE 4 Device 1 error count 00 1C AA 3D Duas 100 e4 Oil 19 SA OF 03 43 50 00 00 10 40 AXE SOOO AL Zone Temperature Counts AI 30002 Active Heating SP Used Cou
36. inal start the file transfer by selecting Transfer Send and follow the following sequence below Click Transfer gt Send File Browse for file to send and make sure that Xmodem is selected Click the send button and the file will be sent to the Gateway HyperTerminal View Call Bis Receive File y Capture Text Send Text File pacen po ee Receiving a file from the Gateway downloading From the dos prompt you must type DOWN filename filename being the name of the file to receive with extension The response will look like the following In Hyperterminal start the file transfer by selecting Transfer Send and follow the following sequence below 27 HyperTerminal lil Receive File View Call Siue Place received file in the following folder ee A w SendFie CAgateway BEC Use receiving protocol Capture Text Xrnodem sfer al Send Text File N Capture to Printer Receive lll Receive Filename modem never sends a filename so you must specify a filename for storing the received file Folder C sgateway Filename filename txt Click Transfer gt Receive File Enter the location to save the file and make sure that Xmodem is selected and then click the Receive button The next dialog box will ask you to specify a filename and when you click OR the file will be received from the Gateway Setting up the Modbus Driver After the Gateway i
37. l D etail O f line Comm Stats X it A TagID VAV 4 TRUNK 1 MB 1 is ON LINE amp RELIABLE TagID VAV 4 TRUNK 2 MB 61 is OFF LINE MUST INIT SlowScan TagID VAV 4 TRUNK 3 MB 121 is ON LINE amp RELIABLE TagID VAV 5 TRUNK 3 MB 122 is ON LINE amp RELIABLE TagID VAV 6 TRUNK 3 MB 123 is ON LINE amp RELIABLE 16 S elect Target a specific device DEV You may select a DEVICE to target into Enter a DEVICE number 1 240 or 0 for all 2 Device 2 is now the targeted device DEV Select AJl Detail O fFline C omm Stats X it D DEVICE 1 is field device subdevice type 4 0 1 Device Name VAV 4 Insurance Company Device Description West Conference Room VAV TagID VAV 4 TRUNK 1 MB 1 is ON LINE amp RELIABLE I O Trunk 1 had last COMM at 17 13 12 on Dec 28 2004 Scan time secs 14 Device has 54 objects under it First link 54 O ffline This will display the Offline status of devices Hopefully none are but if any ate they will be displayed in a list DEV Select A ll D etail O ffline Qomm Stats X it O TagID VAV 4 TRUNK 2 MB 61 is OFF LINE DEV Select A l D etail O ff line C omm Stats X it C TagID VAV 4 TRUNK 1 MB 1 statistics Packets Today 463 RX Errors Today 0 Error 0 000 TX Errors Today 4 Error 0 864 Point Menu Options The Point men
38. ld devices will commence The Save Discovery option automatically assigns Modbus device numbers slave addresses to the Trane VAV devices it found First devices on trunk 1 are assigned in order of Modbus slave devices 1 through 60 note that there are a maximum of 60 Trane VAV s for one trunk this is because many installations violated the rules about only having 32 Trane VAV s on one trunk We accommodate systems that have more Similarly the Trane VAV devices found on Trunk 2 are assigned in the order that they are discovered to Modbus slave devices 61 through 120 And of course Modbus slave addresses 121 to 180 are for the Trane devices found on Trunk 3 and finally Modbus slave addresses 181 to 240 are assigned to devices on Trunk 4 in order of discovery Summary Menu Options SUM Devices A larms C ontrolled U nreliable X it After the S ave Discovery has been completed you can then reboot and the Gateway will begin to poll the discovered devices The summary menu option will display further options detailed below D evices Devices will display all the status of all devices configured for the Gateway TagID VAV 4 TRUNK 1 MB 1 is ON LINE amp RELIABLE TagID VAV 1 TRUNK 2 MB 61 is OFF LINE MUST INIT SlowScan TagID VAV 4 TRUNK 3 MB 121 is ON LINE amp RELIABLE TagID VAV 5 TRUNK 3 MB 122 is ON LINE amp RELIABLE TagID VAV 6 TRUNK
39. ly for about 20 seconds so the feedback is fairly useless and in fact we suggest that you NOT define it However the Trane documentation also says that it takes up to 15 minutes to drive the damper full closed to do the calibrations It has been found that in real life it takes sometimes 20 to 25 minutes to actually do the physical damper motion and recalibration Have patience SPECIAL NOTE FOR INTELLIPAKs The Intellipak is configurable for many different applications as an AHU as a VAV system as just a big air blowet and has many options power exhaust economizer etc They can be cooling only or have a number of stages of electric or gas heat Because of this you must be cateful in determining which points to bring out In cooling only units for example the heating setpoints are irrelevant and indeed they come back as the Trane undefined value of 3276 7 degrees for OCC UNOCC and S A heating setpoints So don t bring those points out If the unit doesn t have OCC UNOCC control for example if it is just a big air blower and only has AUTO SHUTDOWN modes then the OCC UNOCC control is meaningless but you could bring it in as a BI object and the OCC UNOCC follows the AUTO SHUTDOWN command Also it is important to set the Intellipaks to Tracer ICS rather than LOCAL control via their setup mode from the front panel of the rooftop unit If the unitis in LOCAL control it will never take orders from the Gat
40. m Programming High Minimum On Off Trane Miscellaneous Custom Programming High Trane Demand Limiting 8 Manual Operator Trane Miscellaneous VAV Air Systems Trane VAV Air Systems Chiller Plant Control Trane Chiller Plant Control Area Control Trane Area Control Manual Operator Low Trane User Low Miscellaneous Trane Miscellaneous Timed Override Trane Timed Override Time of Day Scheduling Trane Time of Day Scheduling Custom Programming Low Trane Custom Programming Low Relinquish Default Relinquish Default Note in the Comments we have given what the Tracer Summit Default was for the priorities in question This is informational only but might help some of you who were used to an old Tracer system Each controllable point in BACnet that is an AO or a BO has a priority array which is generally sparsely populated Nothing in a particular priority level is specified by Null which means that priority level is unused As an example consider a warehouse exhaust fan which is turned on and off by a time schedule at priority 15 In a demand limiting situation this point may also have control at priority 7 shut 22 down ancillary systems in energy peak situations But programmatically a logic block that detects a fire might want to override everything and keep the fan on in order to pressurize an area and keep the fire from spreading so that might be at priority 2 When control is released
41. mum Cooling Flow Minimum Cooling Flow Fan Control Setpoint AUX Temperature Deg F Newer VAV s II V Usage Zone Temp Active Heating Setpoint Active Cooling Setpoint Occupied Heating Setpoint Occupied Cooling Setpoint Unoccupied Heating Setpoint Unoccupied Cooling Setpoint Damper Valve Position Maximum Flow Box Size Current Flow CFM Minimum Heating Flow Maximum Cooling Flow Minimum Cooling Flow Cooling Low Limit Cooling High Limit Heating Low Limit Heating High Limit Occupied OA Min Flow Unoccupied OA Min Flow Heating Offset Value Control Offset Value Aux Temperature Current Maximum Flow Current Minimum Flow Thermostat Temp Position Ranges amp Notes Deg F Range Note 1 Deg F Range Note 1 Deg F Range Note 1 Deg F Range Note 1 Deg F Range Note 1 Deg F Range Note 1 Deg F Range Note 1 Pct Range Note 2 CFM Range Note 3 CFM Range Note 2 CFM Flow Note 2 CFM Flow Note 2 CFM Flow Note 2 Deg F Range Note 1 Deg F Range Note 1 Deg F Range Note 1 Deg F Range Note 1 CFM Flow Note 2 CFM Flow Note 2 Deg F Range Note 1 Deg F Range Note 1 Deg F Range Note 1 CFM Flow Note 2 CFM Flow Note 2 Deg F Range Note 1 32 Monitor Control Older VAV 1 s Newer VAV s II V Ranges Reg Inst Reg Inst Usage Usage amp Notes DIGITALS 10001 301 Fan Status Ctl Fan Status Ctl 0 Off 1 On 10002 302 Control Mode Sta
42. n the BCU These are NOT to be confused with PC based Com ports The Trane Com trunks each use different technologies e g Com5 is a Echelon LON trunk Com 1 and Com3 are the same except Com1 is non isolated and Com3 features voltage isolation The RS 485 Com trunks from the Trane BCU are removed and simply re connected to the Centaurus Prime Trane 485 Gateway The devices are either Com4 only or are devices that can be configured to be Com4 for example by rotating the TCI card 90 degrees The trunk connections are clearly marked and each trunk is only a two wire connection The trunks have a plus and minus side and also a shield connection that goes to cabinet AC ground Be sure that the polarity is correct and that the shields are ALL tied together and only connected to ground at ONE place to avoid ground loops This is a two wire trunk so it does not matter if you land the field trunk wires on TX TX or on RX RX Just make sure the polarity is right Picture 1 2 Gateway Overview and Identification CHANNEL C 39 5 30 uc 227 x le A a MA s genro vimm Connecting to the Modbus Master Connecting to the Modbus Master is done one of two ways D Ethernet If you have ordered the Trane 485 Gateway as the standard Modbus IP configuration then it is simple You plug in an 8 pin Category 5 or Category 6 cable into the Ethernet connection on the top right hand
43. nts AI 30003 Active Cooling SP Used Counts AI 30003 Active Cooling SP Used Counts AO 40004 OCCUPIED Heating SPT Counts AI 30004 OCC Heating Value Counts AO 40005 OCCULMED COO lsinG aS EDT Go UR Se AI 30005 OCC Cooling Value Counts 25 OO 1C 0 OO M Oi ike 0 Ze We 00 76 Mas AS Tils ice 00 76 7 67 80 80 24 LLOG 00 00 00 00 00 00 00 00 00 00 00 for monitored trunks J y S TMO baud 00 00 AA 3D 18 85 TIG 00 00 71 76 78 00 00 76 00 71 71 76 00 00 00 00 00 00 00 00 00 00 00 00 100 OG 19 Ay 4c 47 AC OF Valid 00 00 00 M odbus When M is pressed while in monitor mode the full Modbus RTU data packets will be displayed as well for each scanned device Modbus version only B ACnet When B is pressed while in monitor mode the full BACnet protocol data packets addressed globally or to this gateway only will be displayed in real time Note that this significantly slows down the BACnet channel and we recommend that this mode NOT be utilized for any length of time SPECIAL NOTE FOR VAVs BO point 14 Recalibration This point is according to Trane the recalibration point for a VAV box It is pathetically slow in acting The Trane manual errata sheet says that you must control the point ON for five minutes then turn it OFF The actual feedback from the point does show ON but on
44. or failure and reboots But the EPROM used in some of the Trane device designs was never designed to take more than 100 000 writes but they would usually last 250 000 to 500 000 Now if you write to a parameter once per minute that is 1440 times per day or 525 600 times per year Ooops it s easy to see that continuously bumping a setpoint is a bad idea the EPROM can fail in less than a year We think that you should write to EPROM only on a significant change and only when really necessary Second many of the parameters are modes and ate mapped as several BI BO points For example the Occupied and Unoccupied modes for a VAV is really controlling the fan modulating dampers turning heating and cooling ON as needed etc There are several force BO points Damper forced open Damper forced closed Minimum Setpoint forced Maximum Setpoint forced etc and if the Trane device is in NONE of the force modes then it is in AUTOMATIC This is very important to remember Trane devices have automatic as their default control mode Note also that if you try to FORCE it into several of these force modes at once the results are nonsense actually the last command wins We also have noted that there is some time lag between telling the Trane device to go to a mode and it actually happening Further controls should be written so that the force points are taken off which means that it goes into AUTO mode then aft
45. or one site only One Ametica Plaza so they could store computed values in the controllers due to limitations of their host system Itis NOT recommended that you ever do this but in case it is a necessity you would add the line MAKE USER AV OBJECTS TRUE to the INI file If you have Voyager aka Reliatel or Intellipak rooftop units or TUC devices they are subject to power disturbances lightning and other maladies that make them reset After a reset they just sit there not running If you want them to require user intervention to get going again that s fine Howevet some people just want the system to automatically deal with this issue We handle this by allowing an option for you to specify this Adding the line ROOFTOP RECONTROL TRUE in the INI file tells the gateway to re send all controls which are actually just one command to the Voyager Intellipak and TUC units every five minutes at 00 05 10 55 One of the many complaints users have about their old Trane system is that Occupancy works different between the Voyager Intelipak rooftop units and the VAV boxes For rooftops the OCC UNOCC points have the sensible field values that OCC 1 UNOCC 0 as 90 of the controls industry does However for VAV boxes the native OCC UNOCC points have this reversed OCC 0 UNOCC 1 In talking with an old Trane engineer he stated it was because a power failure made everything go to zero and thus they just had
46. r of the PC You must set the IP address of the Gateway to a static fixed address on the segment that you are in This is done with the CONFIG TXT file described in the following section Single Board Computer Gateway Overview Picture 1 3 Gateway Overview and Identification Trane Trunk 4 TraneTrunk 3 Trane Trunk 2 Trane Trunk 1 NOTE If connecting to a Modbus RTU Master an additional Se ie ie 2 z b f RS485 232 9 e D x J eno converter is eof en oe supplied and mounted on the backplane On Off Switch 1 Amp Fuse Remove Cover for Power Supply Power Connections Commissioning the Gateway with the Local User Interface Creating and Downloading the GATEWAY INI file The following is an example of the GATEWAY INI file that must be edited to match your particular installation There are several sets of parameters in the INI file One set of parameters deals with the BAUD rates on the four Trane trunks Another parameter sets the Ethernet IP Address of the gateway it must be a FIXED IP address if you are using either Modbus TCP or BACnet IP as the host protocol And if you are using BACnet another set of parameters tells the gateway about several network options of BACnet The BAUDO 9600 N line may be modified for different Baud rates and parity for your Modbus RTU connection The valid baud rates you can use are only 1200 4800 9600 1
47. s ready to go and you have your database configured one of the last steps is to make sure that you have the Modbus driver settings for the Host Master setup correctly The following information should be kept in mind when configuring the driver Modbus commands that are accepted by the Gateway are 1 Read Coils 0000 s 2 Read Discretes 10000 s 3 Read Holding Registers 40000 s 4 Read Input Registers 30000 s 5 Force Single Coil 6 Preset Single Register 7 Read Exception Status Status is 0 if OK o w internal error code 15 Force Multiple Coils 16 Preset Multiple Registers 17 Report Slave ID Emulates Modicon Micro 84 Most Modbus drivers have many setup options and each vendor is different Following are some limits with the Modbus Gateway that you need to consider when setting up your driver 28 MAXIMUM number of coils read at once CMD 1 is 64 MAXIMUM number of discretes read at once CMD 2 is 64 MAXIMUM number of holding registers read at once CMD 3 is 32 MAXIMUM number of input registers read at once CMD 4 is 32 MAXIMUM number of coils forced at once CMD 15 is 8 MAXIMUM number of registers preset at once CMD 16 is 8 TIMEOUT for a command should be a minimum of 350 milliseconds 500 ms recommended TIME BETWEEN commands should be a minimum of 50 milliseconds 100 ms recommended NUMBER OF TIMEOUTS before slow polling should be a minimum o
48. t Driver TRN GWAY EXE Does all the magic DATABASE DAT Database that is created from Save Discovery DISC 1 TXT Trunk 1 Auto Disc File DISC 2 TXT Trunk 2 Auto Disc File DISC 2 TXT Trunk 3 Auto Disc File DISC 4 TXT Trunk 4 Auto Disc File CONFIG TXT Device configuration file created when the Auto Discovety files are merged XPING EXE Test program to verify Ethernet connectivity H elp S ummary D evice P oint C ontrol W atch A utoDisc X it A AUT A uto Discovery S ave Discovery X it S AUTODISCOVERY You may SAVE and MERGE all trunk auto discovery maps ARE YOU SURE If so enter Y for YES and then the ENTER key 14 or any other keys if you do NOT want to merge the maps Y Discovery File Merging trunk 1 Merging VARITRANE unit 4 Trunk 1 Type 1 Discovery File Merging trunk 2 Discovery File Merging trunk 3 Merging VAV 1 unit 4 Trunk 3 Type 0 Merging VAV 1 unit 6 Trunk 3 Type 0 Discovery File Merging trunk 4 Merging VOYAGER unit 50 Trunk 4 Type 2 Merging VOYAGER unit 51 Trunk 4 Type 2 This option will merge all of the discovery files for each trunk thereby giving you a completed database for the Trane VAV devices on all trunks After the merge is complete the Gateway will have created a file called DATABASE DAT When the Gateway is rebooted the new Database file will be initialized and communications to the fie
49. ta DCD Data RTS J2 end of line only J3 end of line only J4 end of line only and J15 static bleed RS422 Communications cim LES aL J EM EN 5Udc gt RX PAIR EARTH CHASSIS TX PAIR UB u2 e 9 C5485 B 7 CHER ELNI CTS DELAYO no e 972 un Ina Installed jumpers Baud0 Baud1 Data DCD Data RTS J2 end of line only J3 end of line only J4 end of line only J5 end of line only J7 end of line only and J15 static bleed RS232 Communications For RS232 communications you will need to make a cable that will connect to Comm1 RJ45 on the Single board Computer following the diagram below RJ45 SIGNAL DIR DEBM MN CAI 4 UT CD n UD COMI1 EXT MODEM NOTE about removing the CS 485 For RS 232 or Ethernet applications the CS 485 module is not used and may be removed While many are tempted to do this it can be used in other applications of course we recommend that you remove the wiring that powers the CS 485 also if you do Both the National Electrical Code and local electrical code generally do not approve of either wire nuts or electrical tape on exposed wires As the Gateways are built to UL and CSA standards we suggest you adhere to these standards to avoid code issues Connecting to a BACnet IP Network This is quite simple You plug in an 8 pin Category 5 or Category 6 cable into the Ethernet connection on the top right hand corne
50. tus Ctl Control Mode Status Ctl 0 Cool 1 Heat 10003 303 Heating Status Ctl Heating Status Ctl 0 Off 1 On 10010 310 10 410 Damper Forced Open Damper Forced Open 0 Normal 1 Forced 10011 311 11 411 Damper Forced Closed Damper Forced Closed 0 Normal 1 Forced 10012 312 12 412 OCC UNOCC Mode Control OCC UNOCC Mode Control 0 OCC 1 UNOCC 10013 313 13 413 Local Setpoint Control Local Setpoint Control 0 Heat Off 1 Heat ON 10014 314 14 414 Min Setpoint Forced Maximum Heating Forced 0 AUTO 1 FORCED 10015 315 15 415 Max Setpoint Forced O AUTO 1 FORCED 10016 316 16 416 TEMP FLOW Mode 0 TEMP 1 MODE 10017 317 17 417 Recalibration Mode Recalibration Mode 0 AUTO 1 FORCED 0 NOT ACTIVE 10018 318 Local Override Active 1 ACTIVE Note that all these tables are for Modbus points the first two columns specify the Modbus register numbers you will use For BACnet the objects have an Object Type and an Instance Number Well it is very simple to translate from Modbus to BACnet just use the following simple secret decoder ring Modbus Register Set BACnet Type Instance XX eg 24 Modbus Coils are BACnet DOs 100XX e g 10021 ModbusBits are BACnet DIs 300XX e g 30013 Modbus Registers ate BACnet AIs 400XX e g 40011 Modbus Holdings ate BACnet AOs For our examples here we would have four BACnet points with the following unique IDs DO 24 DI 21 AI 13 and AO
51. u has three options Select All and Detail 17 NT Select A ll D etail E very X it A This will display all points and their current values for the targeted device What follows below is an example from a Modbus gateway A BACnet gateway will display the BACnet object type and Instance number in the first part of each line rather than the Modbus register number Data is the same for both gateway flavors it is just the object mapping which is different in the two protocol systems register addresses versus object type instances PNT S elect Al D etail Every X it A DEVICE 1 is field device subdevice type 4 0 1 l TagID VAV 4 TRUNK 1 MB 1 has 54 objects under it 1st one at 54 MB Reg 30001 AI Zone Temperature Fld 72 gt 72 00 MB Reg 30002 AI Active Heating SPT Used Fld 71 gt 71 00 MB Reg 30003 AI Active Cooling SPT Used Fld 76 gt 76 00 MB Reg 30004 AT Occupied Heating SPT Val Fld 71 gt 71 00 MB Reg 30005 AT Occupied Cooling SPT Val Fld 76 gt 76 00 MB Reg 30006 AI UnOccupied Heat SPT Val Fld 67 gt 67 00 MB Reg 30007 AI UnOccupied Cool SPT Val Fld 80 gt 80 00 MB Reg 30008 AI Damper Valve Pos Fld 24 gt 24 00 MB Reg 30009 AI Maximum Flow Size Fld 16 gt 1100 00 MB Reg 30010 AT Present CFM Flow Fld 0 gt 0 00 MB Reg 30011 AT Max Heating Flow Fld 16 gt 16 00 MB Reg 30
52. us case use Low Range 0 0 and High Range 10 0 inches Range Note 4 This is an Enthalpy measurement in units of BTU pound of dry air BACnet uses this directly In the Modbus case use Low Range 0 0 and High Range 50 0 BTU Ib 35 Device Point Mapping for TUCs Monitor Control TUC Fan Coil TUC Heat Pump Ranges Reg Inst Reg Inst Usge Usage amp Notes 30001 1 Zone Temp Deg F Range Note 1 30002 2 Active Heating Setpoint Active Heating Setpoint Deg F Range Note 1 30003 3 Active Cooling Setpoint Active Cooling Setpoint Deg F Range Note 1 30004 4 40004 104 Occupied Heating Setpoint Occupied Heating Setpoint Deg F Range Note 1 30005 5 40005 105 Occupied Cooling Setpoint Occupied Cooling Setpoint Deg F Range Note 1 Unoccupied Heating Unoccupied Heating 30006 6 40006 106 Setpoint Setpoint Deg F Range Note 1 Unoccupied Cooling Unoccupied Cooling 30007 7 40007 107 Setpoint Setpoint Deg F Range Note 1 30008 8 Damper Minimum Position Damper Minimum Position Pct Range Note 2 30010 10 Supply Air Temp Supply Air Temp Deg F Range Note 1 30011 11 Heating Capacity Heating Capacity Pct Range Note 2 30012 12 Cooling Capacity Cooling Capacity Pct Range Note 2 30013 13 Valve 1 Position Valve 1 Position Pct Range Note 2 30014 14 Valve 2 Position Valve 2 Position Pct Range Note 2 30015 15 40015 115 Heating Setpoint High Limit Heating Setpoint High Limit Deg F R
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