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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. When powered from a 9 Vdc battery, an RSX runs for approximately 4 to 6 hours.

Follow these steps to power the RSX using a 9 Vdc battery:

1. Create a cable using appropriate wires and connectors to connect the 9 Vdc battery to RSX as follows:

•

Connect the positive (+) battery terminal to the “H” terminal on the RSX 24 Vac power connector.

•

Connect the negative (-) battery terminal to the “N” terminal on the RSX 24 Vac power connector.

Figure 10. Connecting a 9 Vdc Battery to RSX.

You can obtain 9 Vdc battery snap connectors with red (+) and black (-) leads from an electronics
store (such as those sold by Radio Shack

—

part number 270–324).

2. Connect the cable to the 9 Vdc battery and 24 Vac power connector on the RSX.

Revision Date: July 10, 2008

39

Siemens Building Technologies, Inc.

Содержание Wireless Room Sensor Solution

Страница 1: ... 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 Poin...

Страница 2: ...ing Advanced Users 31 Verifying RSX TEC Communications 31 Viewing WRS RSX Communication Quality 31 Viewing WRS RSX Reporting and Status Values 34 Pinging an RSX PING 34 Viewing Diagnostics DIAG 35 Testing Wireless Communication Quality TEST 36 Viewing All Data INFO 37 Clearing Diagnostic Counts CLEAR 38 Checking RF Energy Levels ENERGY 38 Appendix B Powering RSX Using 9 Vdc Battery 39 Appendix C W...

Страница 3: ...er FCC Interference Statement Part 15 105 b This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in acc...

Страница 4: ...until no interference is achieved The said legal communications means radio communications is operated in compliance with the Telecommunications Act The low power radio frequency devices must be susceptible with the interference from legal communications or ISM radio wave radiated devices SERVICE STATEMENT Control devices are combined to make a system Each control device is mechanical in nature an...

Страница 5: ...difying setup and operation of the Wireless Room Sensor Solution Appendix A Troubleshooting Advanced Users provides helpful procedures for troubleshooting the Wireless Room Sensor Solution Appendix B Powering RSX Using 9 Vdc Battery provides details on using a 9 Vdc battery to power the RSX when performing site surveys Appendix C Wireless TEC Commissioning and Balancing provides information on usi...

Страница 6: ... important information Notation Symbol Meaning WARNING Indicates that personal injury or loss of life may occur to the user if a procedure is not performed as specified CAUTION Indicates that equipment damage or loss of data may occur if the user does not follow a procedure as specified Note Provides additional information or helpful hints that need to be brought to the reader s attention Tip Sugg...

Страница 7: ...pdate them with WRS values 4 If your RSX and WRS devices are not bound normally performed during WRS installation bind the WRS device with the RSX device To do this see Binding the WRS RSX Pair 5 Optional If using Sensing Only or Sensing with Display WRS model set RM STPT DIAL point point 4 to desired value see second note under Command Priority for details 6 If desired change RSX and WRS configur...

Страница 8: ...ice installation Low impact installation enables cost effective replacement of pneumatic and competitor equipment Easier installation and re configuring spares facilities the difficulties associated with rewiring to support new cable routing Factory installation of wireless transceivers by terminal box manufacturers further reduces electrician involvement at installation time and reduces installat...

Страница 9: ... WRS supports one RSX and one TEC Figure 2 Room Sensor Transceiver RSX The RSX provides an indicator light to furnish operation and communication link status See Table 1 to monitor current RSX status In Table 1 rapid flashes last 25 seconds while slow flashes last 1 second Table 1 RSX Indicator Light Indicator State RSX Status Good or Bad Off Powered off N A Solid Yellow for 10 seconds Completed b...

Страница 10: ... Need to ensure RSX is bound to WRS then check links wireless and wired and devices WRS and TEC for problems Flashing Yellow Bootloader only loaded Bad RSX is not operational Need to contact Field Support Solid Yellow Continuous EEPROM error Bad RSX is not operational Need to contact Field Support Wireless Room Sensor WRS A Wireless Room Sensor WRS is associated with a specific RSX TEC Using the w...

Страница 11: ...cons Setpoint see Figure 4 This view is available on full featured WRS models only and is shown after the or button is pushed WLAN0079R1 OCCUPIED MODE UNOCCUPIED MODE SETPOINT INDICATOR 71 F Figure 4 Setpoint View Diagnostics see Figure 5 This information is shown after an RTS passkey P N 544 643 is inserted in the WRS RJ 11 port of either of the two WRS models with a display TEC ADDRESS WLAN0080R...

Страница 12: ... is installed and powered it will stay in a low power sleep mode and will not take temperature readings until commissioned On WRSs with an LCD panel the displayed temperature value will not change until the WRS is bound to an RSX TEC The WRS battery is discharged at a rate of 1 day of the 5 year battery life for each 3 minutes of WRS HMI port use such as using WRS HMI commands or using with a TEC ...

Страница 13: ...rmation is displayed on the LCD panel see Figure 5 Revision History Table 3 shows the revision information for the WRS solution and its components Table 3 WRS Revision History Firmware Revision WRS Version RSX WRS Comments Version 1 10 10 Initial release Security When discussing wireless communications the issue of security frequently comes up In general for the Wireless Room Sensor Solution secur...

Страница 14: ...CHECK RSX or BIND command at the WRS HMI shows that the WRS RSX pair has a Link Quality value of less than 90 then the RSX and or WRS should be repositioned so that a better wireless communication link exists between them Automatic channel changing see Appendix D Wireless Channels for details on limits RSX Location The RSX should be typically mounted within 100 feet from its associated WRS Where p...

Страница 15: ...ount 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 Revision Date July 10 2008 15 Siemens Building Technologies Inc ...

Страница 16: ... ovens and 802 11 access points Site Survey Guidelines Typically a WRS RSX pair operate well if they are within 100 feet of each other and neither are within 10 feet of other wireless interference sources mainly 802 11 access points However if there is some question about whether WRS RSX pairs are suitable for a particular job such as if there are intervening physical building materials between th...

Страница 17: ...e WRS RSX Pair Before You Begin Before commissioning the WRS RSX pair verify the following RSX is powered WRS is powered the battery s plastic insulating strip has been removed Although not required for startup the following are required to fully commission the WRS TECs are addressed and attached to RSXs At the TEC verify that the ROOM TEMP RM STPT DIAL and DI OVRD SW points are not overridden suc...

Страница 18: ...he plastic insulating strip is removed 3 Type BIND RSX a a last 4 digits of RSX s EUID and press ENTER 4 When the WRS and RSX successfully bind The RSX s indicator light is solid yellow for 10 seconds The WRS issues a CHECK RSX command to verify wireless link quality 5 If the CHECK RSX command shows that communication is poor less than 90 then the RSX and or WRS should be physically repositioned t...

Страница 19: ... Verifying WRS RSX Communications If a bound WRS cannot communicate with its RSX it uses battery power at approximately twice the normal rate in its attempt to get a response from the RSX Keep this in mind if the WRS loses communication with its RSX during normal operation or is temporarily stored away from the network Configuring WRS RSX Parameters The WRS and RSX are configured in the factory wi...

Страница 20: ...rent voltage to its RSX TEC 50 WRS Heartbeat min Maximum time allowed for no communication with the RSX TEC After this the WRS wakes up and reports its presence to the RSX TEC 5 Point Number for Room Temp Point number used in TEC application 4 Point Number for Room Setpoint Dial Point number used in TEC application 13 Point Number for DI Override Switch Point number used in TEC application 19 Poin...

Страница 21: ...h the WRS verify that the battery is properly inserted and the plastic insulating strip is removed 3 Review the WRS RSX configuration a Type PARAM WRS and press ENTER b Type PARAM RSX and press ENTER c Note any settings that must be changed 4 As needed change WRS or RSX configuration settings Change the point number for any WRS point that is not used or has a different point number in the TEC appl...

Страница 22: ...ss ENTER The WRS sends a set of continuous messages to its bound RSX The number of received responses is used to calculate link quality This takes about 2 to 60 seconds to complete To view the quality of completed communications over the past 10 minutes type COMM WRS and press ENTER See Table 5 for desirable parameter values Table 5 Quality Communication Guidelines Parameter Good Quality if Value ...

Страница 23: ...to the override switch NIGHT indicates the switch has not been pressed and the override timer is not active DAY indicates the switch has been pressed and the override timer is active This point is in effect only when DAY NGT Point 29 indicates night mode 29 DAY NGT Determines the day night status of the area 99 ERROR STATUS Indicates WRS Low Battery Condition Bit 3 is set with a point value of 8 o...

Страница 24: ... be set on the ROOM TEMP and RM STPT DIAL points to detect a loss of wireless communications such as due to a dead WRS battery between the WRS and RSX if you manually release the ROOM TEMP or RM STPT DIAL points at the TEC the ROOM TEMP value will again go to approximately 55 F 13 C and the RM STPT DIAL value will go to approximately 101 F 38 C The two points remain at these values until the room ...

Страница 25: ...SW need to be placed into OUT OF SERVICE before they are commanded overriden in BACnet FAILED the TEC RTS port is not connected to an RSX device Diagnostic Points Communication Status and Battery Voltage Point 99 in the TEC is commanded by the RSX to indicate a WRS Low Battery Condition or a WRS RSX Wireless Communication Failure as follows Table 7 TEC Point 99 Error Status Settings Point 99 Value...

Страница 26: ... 3 with the least significant bit of bit 0 in the ERROR STATUS point 99 in the TEC to 1 At the workstation an alarm can be set up to report WRS low battery condition using the value of TEC point 99 You can also check battery status using the STATUS WRS command at the WRS You should replace the battery when LOW BATTERY is set to YES BATTERY STATUS VOLTS value is below 3 2 To replace the battery rem...

Страница 27: ...ty 1 stop bit no flow control and then press ENTER to display the HMI prompt If there is no communication with the WRS verify that the battery is properly inserted and the plastic insulating strip is removed 3 Type SET RSX and press ENTER 4 Continue to press ENTER until you see the ENTER RSX RADIO CHANNEL OR SET AUTO CHANNEL CHANGE OPTION prompt 5 Change radio channel setting as follows a To enabl...

Страница 28: ...op bit no flow control and then press ENTER to display the HMI prompt If there is no communication with the WRS verify that the battery is properly inserted and the plastic insulating strip is removed c Type BIND WRS a a last 4 digits of EUID of the existing WRS and press ENTER If the existing WRS EUID is unavailable you can instead type BIND RSX a a last 4 digits of EUID of the RSX and press ENTE...

Страница 29: ...ds The associated WRS issues a CHECK RSX command to verify wireless link quality 5 If using HMI commands to bind disconnect the computer from the WRS Viewing WRS and RSX Default Values To view a summary of the WRS and RSX factory default settings stored on the WRS device 1 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 activ...

Страница 30: ...s If the WRS returns to sleep mode before you are done disconnect and then reconnect the cable to the WRS port 2 Start a HyperTerminal session log on 1200 baud 8 data bits no parity 1 stop bit no flow control and then press ENTER to display the HMI prompt If there is no communication with the WRS verify that the battery is properly inserted and the plastic insulating strip is removed 3 If the RSX ...

Страница 31: ... flow control and then press ENTER to display the WRS prompt If there is no communication with the WRS verify that the battery is properly inserted and the plastic insulating strip is removed 3 Verify RSX TEC communications a Type STATUS RSX and press ENTER b Verify the RSX ADDRESS parameter value is in the 0 98 range This indicates that the RSX is able to communicate with the TEC and query the TE...

Страница 32: ...e of interference If no improvement reposition one device to bring closer or provide better line of sight to the other device Mac Backoffs Percentage of WRS messages that were delayed backed off because the radio channel was busy typically because of interference Less than 10 Wait for automatic channel change to resolve interference Avg RSSI dBm Average signal strength in dBm of messages received ...

Страница 33: ...dBm of messages received from the WRS Greater than 80dBm such as 75dBm Reposition one device to bring closer or provide better line of sight to the other device Dest Avg Correlation Average signal correlation of messages received from the WRS A value of about 110 indicates a maximum quality frame while a value of 50 is the lowest quality frame detectable by the RSX 90 or greater Wait for automatic...

Страница 34: ...the WRS is not bound to an RSX this field displays NOT BOUND A value of UNKNOWN indicates that the WRS was reset and has not yet received the address from the RSX Battery Status and Low Battery Ensure the battery is charged and not in low battery condition Pinging an RSX PING You can use the PING command to confirm that an RSX is actively communicating with the WRS To ping an associated RSX type P...

Страница 35: ... WRS or RSX To view diagnostic information At the WRS HMI prompt type one of the following and press ENTER DIAG RSX DIAG WRS Figure 8 is an example diagnostic summary for an RSX Figure 8 Example Results from the DIAG Command Table 11 lists diagnostic parameters helpful when troubleshooting Revision Date July 10 2008 35 Siemens Building Technologies Inc ...

Страница 36: ...us of WRS RSX binding When set to BOUND RSX is bound to a WRS If set to NOT BOUND RSX is not bound to a WRS Testing Wireless Communication Quality TEST You can use the TEST command to test quality of wireless communication between the WRS RSX pair This command is especially useful in situations where you move the WRS or RSX and want to see in real time how wireless communications are impacted To t...

Страница 37: ...e reponse time in milliseconds 0 Number of MAC backoffs 1 Number of message attempts 43 WRS to RSX RSSI value 41 RSX to WRS RSSI value 98 Background RSSI value Viewing All Data INFO You can use the INFO command to get complete configuration operational and communication status and diagnostic information from the WRS and RSX The INFO command automatically executes the following commands one at a ti...

Страница 38: ...ommunications you can use the WRS to check the RF energy levels on all the channels including energy from Wi Fi networks Keep in mind that the WRS provides a snapshot of the current values which can change as wireless devices are added and removed If the wireless link experiences communication problems later on checking the RF energy levels may help to determine if the RF energy is too high on tha...

Страница 39: ...llow these steps to power the RSX using a 9 Vdc battery 1 Create a cable using appropriate wires and connectors to connect the 9 Vdc battery to RSX as follows Connect the positive battery terminal to the H terminal on the RSX 24 Vac power connector Connect the negative battery terminal to the N terminal on the RSX 24 Vac power connector Figure 10 Connecting a 9 Vdc Battery to RSX You can obtain 9 ...

Страница 40: ...reless link is slower by up to 50 compared to a direct connection to the 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 When excessive interference...

Страница 41: ... an RSX that is bound to a WRS is limited to a maximum of 13 automatic channel changes per day this is based on the number of allowable EEPROM write cycles does not occur for a WRS RSX communication link that is simply weak due to either distance or obstructions between the RSX and WRS since changing to another radio channel does not improve wireless communication in this case uses the Avg Channel...

Страница 42: ...at fall between the 802 11 channels The remaining channels are selected in an order that centers around these preferred channels 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 42 Revision Date July 10 2008 Siemens Building Technologies Inc ...

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