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Wireless Room Sensor Solution
User Guide

Table of Contents

About This User Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Chapter 1-Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Chapter 2-About the Wireless Room Sensor Solution . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . 8
Why Use Wireless Room Temperature Sensor Communications? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Room Sensor Transceiver (RSX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Wireless Room Sensor (WRS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Chapter 3-Preparing for Wireless Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
WRS Limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
RSX Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
RSX Antenna Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
WRS Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Site Survey Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Chapter 4-Setting Up the WRS/RSX Pair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Binding the WRS/RSX Pair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Binding Using WRS HMI Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Binding Using Auto-Binding Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Configuring WRS/RSX Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Verifying WRS/RSX Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
WRS Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Point Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Command Priority. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Revision Date: July 10, 2008 (563-068)
Siemens Building Technologies, Inc.
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Summary of Contents for Siemens Wireless Room Sensor Solution

  • Page 1: Table Of Contents

    Chapter 2–About the Wireless Room Sensor Solution ........
  • Page 2 Automatic Channel Changing ................41 Revision Date: July 10, 2008 Siemens Building Technologies, Inc.
  • Page 3 The information contained in this document is subject to change without notice and should not be construed as a commitment by Siemens Building Technologies, Inc. Siemens Building Technologies, Inc. assumes no responsibility for any errors that may appear in this document.
  • Page 4 Control devices are combined to make a system. Each control device is mechanical in nature, and all mechanical components must be regularly serviced to optimize their operation. Siemens Building Technologies, Inc. branch offices and authorized distributors offer Technical Support Programs that will ensure continuous, trouble-free system performance.
  • Page 5: About This User Guide

    About This User Guide This user guide is written for System Specialists, Service Specialists, Technical Engineers, and District Automation Specialists who want to plan, design, and maintain the Wireless Room Sensor Solution. How This Guide Is Organized This user guide is organized as follows: •...
  • Page 6 Getting Help For further information about Wireless Room Sensor Solution, contact the Wireless Solutions team in Buffalo Grove. Revision Date: July 10, 2008 Siemens Building Technologies, Inc.
  • Page 7: Chapter 1-Quick Start

    Wireless Room Sensor Solution Chapter 1–Quick Start To quickly get your Wireless Room Sensor Solution up and running, follow these steps: 1. Install and power up Room Sensor Transceiver (RSX) device. To do this, see Room Sensor Transceiver Installation Instructions.
  • Page 8: Chapter 2-About The Wireless Room Sensor Solution

    flexible alternative to a hard-wired solution that differentiates our solutions from our competitors. For example, in applications where wire must be run through conduit, electrician labor is expensive, and architecture or building materials make running a cable difficult, a Wireless Room Sensor Solution is an attractive alternative.
  • Page 9: Room Sensor Transceiver (Rsx)

    Wireless Room Sensor Solution WRS and RSX devices are not supported by first-generation Siemens Wireless Field Level Network (WFLN) devices. Room Sensor Transceiver (RSX) A Room Sensor Transceiver (RSX) connects to the RTS port of a TEC device. The RSX enables the TEC device to wirelessly communicate with a Wireless Room Sensor (WRS).
  • Page 10: Wireless Room Sensor (Wrs)

    Full Featured (Sensing with Display, Override, and Setpoint) – in addition to the Sensing with Display features, this model includes push buttons for users to override the occupancy mode and adjust the temperature setpoint. Revision Date: July 10, 2008 Siemens Building Technologies, Inc.
  • Page 11 Wireless Room Sensor Solution WRS Display The WRS display may show three different views, depending on the display mode: • Current Temperature and Occupancy Mode (see Figure 3). Shown on both WRS models with a display, the LCD panel can be configured to always show the information or temporarily show the information only after a button is pushed.
  • Page 12 This setting can be changed using the SET WRS command. The WRS HMI is disabled while tools are connected via the WRS port. To regain access to the WRS HMI, remove and then reinsert the computer cable. Revision Date: July 10, 2008 Siemens Building Technologies, Inc.
  • Page 13: Revision History

    When discussing wireless communications, the issue of security frequently comes up. In general, for the Wireless Room Sensor Solution, security is a non-issue. Although the point-to-point wireless link does not use encryption, it would be very difficult (if not impossible) for someone to hack into the link for the following reasons: •...
  • Page 14: Chapter 3-Preparing For Wireless Communications

    Antennas must be at least 24 inches (61 cm) apart to avoid wireless interference between two RSXs. CAUTION: To avoid interference, install the RSX at least 10 feet (3.1m) away from any wireless ethernet (802.11) access point device. Revision Date: July 10, 2008 Siemens Building Technologies, Inc.
  • Page 15: Rsx Antenna Mounting

    Wireless Room Sensor Solution TERMINAL TERMINAL TERMINAL Figure 6. Typical RSX Direct Mount Antenna Installation on Terminal Box. RSX Antenna Mounting The RSX is available with a direct mount antenna (see Figure 6) or a remote mount antenna (P/N 563–008) capable of being bulkhead mounted with a cable 12 inches (30 cm) from the RSX (Figure 7).
  • Page 16: Wrs Location

    3. Position the WRS in the physical location where it would be located and connect a computer cable (540-143) from a computer to the RJ-11 port on the bottom of the WRS. Revision Date: July 10, 2008 Siemens Building Technologies, Inc.
  • Page 17: Chapter 4-Setting Up The Wrs/Rsx Pair

    Wireless Room Sensor Solution The WRS wakes up and remains active for the amount of time specified by its HMI port timeout setting (default = 5 minutes). If the WRS returns to sleep mode before you are done, disconnect and then reconnect the cable to the WRS port.
  • Page 18: Binding Using Wrs Hmi Commands

    1. Plug the cable end labeled Room Sensor Port to the RJ-11 port on the bottom of the WRS. 2. Plug other end of cable to the RJ-11 port on the RSX. Revision Date: July 10, 2008 Siemens Building Technologies, Inc.
  • Page 19: Configuring Wrs/Rsx Parameters

    Wireless Room Sensor Solution 3. If the RSX indicator light does not immediately turn solid yellow (indicating a bind), power cycle the RSX to place it in binding mode. 4. When the WRS and RSX successfully bind, the RSX’s indicator light is lit in solid yellow for 10 seconds.
  • Page 20 The AUTO value enables the values, use the PARAM automatic channel-changing feature. RSX command. – Change the value(s), use the SET RSX command. − View the factory detault values, use the DEFAULT RSX command. Revision Date: July 10, 2008 Siemens Building Technologies, Inc.
  • Page 21 Wireless Room Sensor Solution Use the WRS HMI to configure parameter values for both devices. All configuration settings are stored in EEPROM and persist through any power disruptions (including changing the battery). To view factory default values for the WRS (or RSX), you can use the DEFAULT WRS (or DEFAULT RSX) command.
  • Page 22: Verifying Wrs/Rsx Communications

    6. If desired, you can use the workstation features to define alarms for WRS low battery voltage and loss of wireless communication events using the value of TEC point 99 (see Table 6 for details). To verify RSX/TEC communications, see Verifying RSX/TEC Communications. Revision Date: July 10, 2008 Siemens Building Technologies, Inc.
  • Page 23: Wrs Points

    Wireless Room Sensor Solution WRS Points The WRS uses the same points as wired room temperature sensors. Table 6. TEC Application Points. Default Point Name Description Point ROOM TEMP Actual reading from the room temperature sensor. RM STPT DIAL Temperature setpoint. Default value is 72°F (22°C). (Valid for the full-featured model only).
  • Page 24: Point Commands

    NORMAL. If the high value is undesirable, then the RM STPT DIAL point should be commanded or have a TEC initial value setup on it to the desired value. Revision Date: July 10, 2008 Siemens Building Technologies, Inc.
  • Page 25: Point Status

    Wireless Room Sensor Solution Point Status For P1 TECs, the following point status values for the ROOM TEMP and RM STPT DIAL points at the TEC are used: • NORMAL–the TEC RTS port is connected to an RSX device. •...
  • Page 26: Chapter 5-Modifying The Wrs/Rsx Pair

    BATTERY STATUS (VOLTS) value is below 3.2. To replace the battery, remove WRS from the base plate and install new battery. See Wireless Room Sensor Installation Instructions for details on mounting/unmounting the WRS from the base plate. Revision Date: July 10, 2008 Siemens Building Technologies, Inc.
  • Page 27: Enabling/Disabling Automatic Channel Changing

    Wireless Room Sensor Solution Enabling/Disabling Automatic Channel Changing The WRS/RSX pair provide a channel-changing feature that automatically changes the transmitted radio channel when excessive interference is detected. To enable/disable (default setting is enable) this feature, use the following process: 1. Connect a computer cable (540-143) from a computer to the RJ-11 port on the bottom of the WRS.
  • Page 28: Replacing An Existing Wrs

    1. Disconnect and unmount the existing RSX. 2. Mount and connect the new RSX. 3. Bind the new RSX with the WRS using the auto-binding cable or by following these steps using HMI commands. Revision Date: July 10, 2008 Siemens Building Technologies, Inc.
  • Page 29: Viewing Wrs And Rsx Default Values

    Wireless Room Sensor Solution a. Connect a computer cable (540-143) from a computer to the RJ-11 port on the bottom of the WRS. The WRS wakes up and remains active for the amount of time specified by its HMI port timeout setting (default = 5 minutes).
  • Page 30: Restoring Wrs And Rsx Default Values

    5. Type Y to confirm the reset. 6. To reset the WRS to its factory default settings, type FACTORY RESET WRS and press ENTER. 7. Type Y to confirm the reset. Revision Date: July 10, 2008 Siemens Building Technologies, Inc.
  • Page 31: Appendix A-Troubleshooting (Advanced Users)

    Wireless Room Sensor Solution Appendix A–Troubleshooting (Advanced Users) This appendix provides troubleshooting procedures using various advanced commands. Verifying RSX/TEC Communications You can use the STATUS RSX command to verify communications between the RSX and TEC device. To verify RSX/TEC communications: 1.
  • Page 32 50 is the one device to bring closer or lowest quality frame detectable provide better line-of-sight by the RSX. to the other device. Revision Date: July 10, 2008 Siemens Building Technologies, Inc.
  • Page 33 Wireless Room Sensor Solution Table 9 lists RSX parameters used to determine link quality. Table 9. COMM RSX Parameters. Parameter Indicates Good Quality if To improve quality: value is: Mac % Acked Percentage of RSX messages Between 90% — 100%...
  • Page 34: Viewing Wrs/Rsx Reporting And Status Values

    RSX is powered on. • check that the antenna is securely connected. • use the CHECK RSX command to ensure that the WRS has been bound to the RSX being pinged. Revision Date: July 10, 2008 Siemens Building Technologies, Inc.
  • Page 35: Viewing Diagnostics (Diag)

    Wireless Room Sensor Solution Viewing Diagnostics (DIAG) When directed by Field Support, you can use the DIAG command to get diagnostic information from the WRS or RSX. To view diagnostic information: At the WRS HMI prompt, type one of the following and press ENTER: •...
  • Page 36: Testing Wireless Communication Quality (Test)

    Figure 9 is an example summary of the TEST command. As shown in the example, when the WRS is moved further away from the RSX, RSSI values drop to indicate less quality wireless communications. Revision Date: July 10, 2008 Siemens Building Technologies, Inc.
  • Page 37: Viewing All Data (Info)

    Wireless Room Sensor Solution Figure 9. Example Results from the TEST Command. Table 12 defines TEST command result parameters. Table 12. TEST Command Result Parameters. Parameter Indicates For a TEST command result of 2340.591 1 12 0 1 -43 -41 -98...
  • Page 38: Clearing Diagnostic Counts (Clear)

    When reviewing the scan results, note that the more negative an energy value, the lower the detected energy level is for that radio channel. For example, an –87 reading indicates a lower energy value than –42. Revision Date: July 10, 2008 Siemens Building Technologies, Inc.
  • Page 39: Appendix B-Powering Rsx Using 9 Vdc Battery

    Wireless Room Sensor Solution Appendix B–Powering RSX Using 9 Vdc Battery This appendix provides steps for using a 9 Vdc battery to temporarily power the RSX. This is helpful during site survey situations where RSXs can be easily placed at various locations in a building. While the RSX is designed to run primarily using 24 Vac power, a 9 Vdc battery can also be used to provide temporarily power.
  • Page 40: Appendix C-Wireless Tec Commissioning And Balancing

    TEC’s RTS port. Appendix D– Wireless Channels This appendix provides details on wireless link channels and the Wireless Room Sensor Solution. Overview For the WRS/RSX pair, the wireless link channel setting is made automatically. By default, the WRS/RSX pair initially use Channel 15 for the wireless link.
  • Page 41: Automatic Channel Changing

    Wireless Room Sensor Solution Table 13. Channel and Frequency. (continued) Channel Frequency (MHz) 2460 2465 2470 2475 2480 To determine which channel is currently in use for the WRS/RSX wireless link, use the STATUS RSX command. See the Current Channel parameter (listed under RF Settings in the status report).
  • Page 42 Note that Channel 16 is skipped by the automatic channel changing algorithm, since the RSX and WRS operate at lower power/lower range (due to FCC regulations) on that frequency. Revision Date: July 10, 2008 Siemens Building Technologies, Inc.

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