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Summary of Contents for McQuay IM 689-2
- Page 1 Installation & Maintenance Data IM 689-2 Group: McQuay Controls Part Number: 629952Y Date: January 2001 MicroTech ® BACdrop Gateway ™ BACnet™-to-MicroTech Communications Gateway ©2001 McQuay International...
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Page 2: Table Of Contents
BACnet Network Diagnostic Tool....................39 Network Read/Write Tool......................40 Working With MicroTech Controllers ....................41 MicroTech Controller Configure Tool ................... 42 Working With the MicroTech Network Through an RS-232 to RS-485 Converter......43 MicroTech Network Diagnostic Tool .................... 44 IM 689-2... - Page 3 Jumper Settings........................... 47 Ethernet Status LEDs.......................... 50 Parts List ............................. 50 McQuay, AAF, and MicroTech are registered trademarks of McQuay International. BACdrop, Monitor, and Open Protocol are trademarks of McQuay International. All other trademarks are the property of their respective owners.
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Page 4: Introduction
The MicroTech® BACdrop™ gateway integrates a MicroTech network into a BACnet™ building automation system (BAS) so that you can monitor and control McQuay International equipment from the BAS. The gateway translates between BACnet objects on an Ethernet® network and McQuay memory locations on a proprietary MicroTech network. - Page 5 McQuay International disclaims any liability resulting from any interference or for the correction thereof.
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Page 6: General Description
“PC.” These are all connected to communications ports on the SBC via internal factory wiring. Ethernet Port: The “Ethernet” port provides a connection to an Ethernet network conforming to the ISO 8802-3, 10BaseT standard. The field connection point is an RJ-45 receptacle on the side of the panel. IM 689-2... -
Page 7: Power Supply
“Network” port RJ-45 “PC” port Speaker 5 Vdc power in Power Supply The BACdrop gateway’s power supply (PS) requires a 100 – 240 Vac, 50/60 Hz power source. The power supply furnishes 5 Vdc power to the SBC. IM 689-2... -
Page 8: Bacdrop Software
New versions of either file can easily be downloaded in the field using a PC that contains the BACdrop Setup Wizard software. New releases of BACdrop software will be made available (at no charge) on the McQuay International bulletin board system called McQuay OnLine. For access to McQuay OnLine, contact the McQuay Controls group in Minneapolis. -
Page 9: Microtech Supervisory Controllers And The Level-2 Bacdrop
Figure 2. Typical BACdrop Application (Level-1 BACdrop) Main "front end" BACnet BAS PC for BAS by others Level 1 BACnet on ISO 8802-3 (Ethernet), 10BaseT MicroTech BACdrop (level 1) MicroTech network (RS-485) Level 2 Up to 63 MicroTech controllers per BACdrop Chiller IM 689-2... -
Page 10: Monitor Software And Bacdrop
When the BACdrop is level 2 (see Figure 3 above), communications between the PC containing Monitor software and other MicroTech controllers on the network is possible, but it will severely affect the data transmission rates through the BACdrop gateway. We do not recommend such an application. IM 689-2... -
Page 11: Installation
10.75" (273) Serial port (DB9), external right side 11.63" (295) 11.31" 1.95" (287) (50) 4.25" 9.44" (108) (240) Side View Front View Hinge 1.44" (37) Note: Values in parentheses are in millimeters. 0.88" (22) Bottom View IM 689-2... -
Page 12: Field Wiring
Ethernet port, a hub or a special crossover cable must be Field wiring: 10BaseT Ethernet used. Standard serial cable 3. Cable length must not exceed 5000 ft (1524 m). Factory wiring 4. Standard serial cable. A null modem is not required. Crimp or solder splice IM 689-2... -
Page 13: Power
Note: Ideally, one continuous piece of cable should connect any two controllers. This will reduce the risk of communications errors. If the cable must be spliced, use crimp-type butt connectors (better) or solder (best). Do not use wire nuts. IM 689-2... - Page 14 When making wire splices and multiple-wire terminations, always match wire color to reduce the risk of shorts. Note: Refer to the unit wiring diagrams or product-specific installation manuals to find the correct field wiring connections. IM 689-2...
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Page 15: Network Commissioning
Unless special arrangements have been made, commissioning the MicroTech side of a BACdrop network (i.e., the McQuay equipment including the BACdrop gateway and all MicroTech unit and supervisory controllers) is the responsibility of the McQuay International sales representative, not the BAS company. -
Page 16: About The Network Address
MCBs. Note: If any equipment is running, shut it down before removing power from the unit controller. Follow the shutdown procedures in the unit controller installation and operation manuals. IM 689-2... -
Page 17: Preparing An Address Schedule
A blank address schedule, which may be photocopied, is included as the last page of this manual. Assigning MicroTech Addresses Since a BACnet BAS does not use the MicroTech network address for communications, the McQuay representative can assign MicroTech network addresses without consulting with the BAS representative in advance. - Page 18 PMF and IDENT versions. The various BDIP documents provide this compatibility information. It is highly recommended that the McQuay representative enter the PMF version and its compatible IDENTs into the schedule in advance so that the actual controller IDENTs (read out of each controller’s memory) can be checked against these during the commissioning process.
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Page 19: Commissioning Overview
IDENTs ART1E06B through ART1E06D are compatible with PMF 1.07 (see Figure 8). It is also recommended that the McQuay representative contact the BAS representative prior to commissioning the BACdrop network to make sure that BAS engineering personnel will be using BDIPs for the same PMF version that is on the schedule and which will be used in the BACdrop gateway. -
Page 20: Task 2: Configuring A Level-1 Microtech Supervisory Controller
If there is no MicroTech supervisory controller, go on to the next task. If there is a MicroTech supervisory controller, it needs to be configured so that it polls the level-2 BACdrop. This gives the BAS access to all MicroTech controllers on the network. IM 689-2... -
Page 21: Task 3: Verifying The Integrity Of The Communications Trunk
For the three combinations of conductor pairs, there should be infinite resistance between the conductors. If the conductors are properly connected to the field terminals of the MicroTech controllers, this check will test for shorts throughout the trunk (see note at step 1). IM 689-2... -
Page 22: Task 4: Connecting The Bacdrop Gateway To The Trunk
Be careful to maintain the proper polarity. Power up the BACdrop panel again. Table 5. BACdrop “Network” Terminal Block Voltages Network terminal block Acceptable voltage reading 3.0 ± 0.3 Vdc – 2.0 ± 0.3 Vdc 0.0 ± 0.2 Vdc IM 689-2... -
Page 23: Task 5: Connecting The Controllers And Verifying Communications
The wizard attempts to communicate with every controller defined in the BACdrop gateway’s configuration file. A three-line report is generated for each controller; for example: MicroTech Controller 01.00 Software IDENT: ART1E06D System Status: operational MicroTech Controller 02.00 Software IDENT: The device is busy System Status: non-operational IM 689-2... - Page 24 “BACdrop Setup Wizard User’s Guide” portion of this manual. If there is a level-1 supervisory controller in the network, verify that its number of slaves parameter was set high enough to cover the level-2 BACdrop’s address. See “Task 2: Configuring a Level-1 MicroTech Supervisory Controller.” IM 689-2...
- Page 25 2.0 ± 0.3 Vdc Ground 0.0 ± 0.2 Vdc Figure 9. AMP Connector Terminal Configuration FUSE 1 PORT A PORT B COMMUNICATIONS [FUSE: BUSSMAN MCR-1/4] Figure 10. IDC Connector Terminal Configuration, for Model 125 and 325 UV Controllers Bottom View IM 689-2...
- Page 26 Enter the number of level-2 devices on the MicroTech network and click Next. This number is the decimal equivalent of the highest L2 address. For example, if the highest level-2 address is 3F.00, enter 63 here. The fourth MicroTech Network Diagnostic screen appears, and the single-pass network diagnostic begins. IM 689-2...
- Page 27 Plug the network connector into port B. Verify communications with the MicroTech controller. The BACdrop Setup Wizard should still be showing the main (fourth) MicroTech Network Diagnostic screen. Click the Refresh Screen button to start another network diagnostic pass. IM 689-2...
- Page 28 If there is a level-1 supervisory controller and the BAS cannot communicate with any of the MicroTech controllers, verify that the level-1 controller’s number of slaves parameter was set high enough to cover the level-2 BACdrop gateway’s address. See “Task 2: Configuring a Level-1 MicroTech Supervisory Controller.” IM 689-2...
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Page 29: Bacdrop Setup Wizard User's Guide
Power supply for RS-232 to RS-485 converter (for example, from B&B Electronics: 485PS2) • 10BaseT null Ethernet cable or two standard Ethernet cables and an Ethernet hub • MicroTech PC Communications Cable Kit (McQuay part no. 057186802) Software • Windows 95/98 •... -
Page 30: Installing The Bacdrop Setup Wizard
On the Start menu, point to Programs, BACdrop Setup Wizard, and then choose the BACdrop Setup Wizard program. Type the password in the box. The password is “BACdrop!” (case sensitive). Click OK or press Enter. The Main screen appears. Figure 11. BACdrop Setup Wizard, Main Screen IM 689-2... -
Page 31: Working With The Bacdrop Gateway
You should know the COM port that is assigned to the PC’s serial port. The wizard will prompt for this information. The first screen of each tool’s wizard is a cabling diagram that helps you set up or verify cable connections. Figure 12 shows an example. IM 689-2... -
Page 32: System Information Tool
BACnet numbers assigned to the MicroTech network and the BACnet (decimal) network that the BACdrop gateway is part of. The BAS system integrator may supply these numbers. They can be changed with the BACdrop Setup Wizard’s Configure Network Numbers tool. IM 689-2... -
Page 33: Configure Controller List Tool
MicroTech controller type, and the BACnet Device object instance number. You can add, delete, or modify any of this data. As an option, you can specify a MicroTech controller’s location, which becomes the value of the BACnet Device object’s Location property. Figure 15. Configure Controller List Tool, Main Screen IM 689-2... - Page 34 Cancel to cancel the changes. When you accept the changes here, the new configuration is held in PC memory; it is not permanently saved yet. Figure 16. Configure Controller List Tool, Edit Screen IM 689-2...
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Page 35: Configure Network Numbers Tool
See Figure 17. Figure 17. Configure Network Numbers Tool After changing one or both network numbers, you can save the completed configuration to the BACdrop gateway’s non-volatile memory by clicking the Finish button. If you click the Cancel IM 689-2... -
Page 36: Download Tool
BACdrop gateway will remain unchanged. Download Tool The Download tool allows you to download updated BACdrop program files and PMF files into the BACdrop gateway’s non-volatile memory. These files are available on McQuay International’s “McQuay OnLine” bulletin board system. See the “BACdrop Software”... -
Page 37: Change Timing Parameters Tool (Advanced Users Only)
The timing parameters are part of the BACdrop configuration file. Discussion of the timing parameter functions is beyond the scope of this document. Only qualified and trained technicians should attempt to adjust them after consulting with personnel in the McQuay Controls group. - Page 38 For the Log BACnet Packets tool, the Ethernet connection must be over the BACnet BAS or LAN. This is because the BACdrop gateway is a passive device and without a supervisory BAS to initiate requests, no communications will occur. See Figure 21. Figure 21. Log BACnet Packets Tool, Cabling Configuration Screen IM 689-2...
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Page 39: Bacnet Network Diagnostic Tool
The BACnet Network Diagnostic tool is very valuable during network commissioning because it can prove good communications throughout the entire system supplied by McQuay International, from the “Ethernet” port on the BACdrop gateway to the last MicroTech controller at the end of the daisy... -
Page 40: Network Read/Write Tool
For example, if an Analog Output object has a resolution of 1°F and a valid range of 40 to 80°F, an entered value of 61.1°F will be written as 61°F and an entered value of 81°F will be written as 80°F. IM 689-2... -
Page 41: Working With Microtech Controllers
MicroTech controller’s A port (see note below). This special cable is available in a kit from McQuay International. The part number for the DB9-style cable kit is 057186802. The kit includes adapters for the various MicroTech controller port styles. -
Page 42: Microtech Controller Configure Tool
See Figure 27. If the checksums do not match, the tool will not allow you to proceed to the edit screen. In this instance, MicroTech Monitor software should be used instead. IM 689-2... -
Page 43: Working With The Microtech Network Through An Rs-232 To Rs-485 Converter
This tool requires an RS-232 to RS-485 converter and power supply (e.g., B&B Electronics models 485PTBR and 485PS2). The RS-485 end taps into the MicroTech network at any location on the level-2 trunk, and the RS-232 end connects to your PC’s serial port with a standard serial cable. See Figure 28. IM 689-2... -
Page 44: Microtech Network Diagnostic Tool
Software” section of this document. The MicroTech Network Diagnostic tool is not capable of communicating with a level-1 MicroTech controller, and it is not capable of communicating with a BACdrop gateway regardless of its level. Figure 29. MicroTech Network Diagnostic Tool IM 689-2... -
Page 45: Service Information
Remove the J22 (input power) connector from the SBC and measure the voltage between the terminals. See Figure 30. The voltage should be 5 Vdc. If you measure 5 volts, the SBC is probably defective. If you don’t measure 5 volts, replace the power supply or its cable. IM 689-2... -
Page 46: Troubleshooting Network Communications Problems
Try swapping a known good controller. Be sure to check the good controller’s network address and port configuration. If the good controller communicates using the suspect controller’s network address and port configuration, the suspect controller may be defective. IM 689-2... -
Page 47: Troubleshooting The Sbc
Table 7 lists the proper jumper settings for the SBC. Figures 31 through 39 show the locations of the jumper blocks on the SBC. Table 7. Single Board Computer Jumpers Jumper block Set jumper across terminals See Figure 8-10 11-12 None None 9-10 11-12 13-14 9-10 11-12 IM 689-2... - Page 48 Figure 31. Single Board Computer, Jumper Blocks J2 and J4 Figure 32. Single Board Computer, Jumper Block J3 Figure 33. Single Board Computer, Jumper Block J5 Figure 34. Single Board Computer, Jumper Blocks J7 and J8 IM 689-2...
- Page 49 Figure 35. Single Board Computer, Jumper Blocks J11 and J12 Figure 36. Single Board Computer, Jumper Blocks J14 and J21 Figure 37. Single Board Computer, Jumper Blocks J17 and J25 IM 689-2...
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Page 50: Ethernet Status Leds
Link integrity, or testing disabled Parts List Component designation Description Part no. Single Board Computer (SAT-SXPlus) Contact McQuay Controls group – Flash chip, 32-pin (Atmel) Contact McQuay Controls group Power supply Contact McQuay Controls group Circuit breaker Contact McQuay Controls group... - Page 51 MicroTech Network No.: PMF Version No.: MicroTech Unit Compatible Device Addr. Unit Type/Description IDENTs Instance Location IM 689-2...
- Page 52 13600 Industrial Park Boulevard, P.O. Box 1551, Minneapolis, MN 55440 USA (763) 553-5330...
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