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Model RXT-300 

SmartWireless™ Transceiver 

 

 

 

 

 
 

Operator’s Installation and Instruction Manual 

 
 
 

 
 

 

 

 
 

 DETCON, Inc. 

4055 Technology Forest, Suite 100 

The Woodlands, Texas 77381 

Ph.281.367.4100 / Fax 281.298.2868 

www.detcon.com

January 03, 2012 • Document # 3481 • Revision 2.0 

Summary of Contents for SmartWireless RXT-300

Page 1: ...less Transceiver Operator s Installation and Instruction Manual DETCON Inc 4055 Technology Forest Suite 100 The Woodlands Texas 77381 Ph 281 367 4100 Fax 281 298 2868 www detcon com January 03 2012 Document 3481 Revision 2 0 ...

Page 2: ...ii Page intentionally blank Shipping Address 4055 Technology Forest Suite 100 The Woodlands Texas 77381 Mailing Address P O Box 8067 The Woodlands Texas 77387 8067 Phone 888 367 4286 281 367 4100 Fax 281 292 2860 www detcon com sales detcon com ...

Page 3: ... Reset 15 3 0 System Operation 15 3 1 Station Configuration 16 3 2 HMI Station Operation 16 3 3 Sensor Station Operation 16 3 4 Alarm Station Operation 17 3 4 1 Alarm Output Properties 18 3 4 2 Alarm Zones 18 3 4 3 Alarm Setup Summary 19 3 5 Network Sleep 19 3 6 Network Control 19 3 6 1 Alarm Reset and Alarm Silence 19 3 6 2 Alarm Inhibit 20 3 6 3 Alarm Test 20 3 6 4 RF Silence 20 4 0 System Confi...

Page 4: ... Family 2 Figure 3 Mesh Network Topology 3 Figure 4 Model 100 Terminal Board 4 Figure 5 Smart Battery Pack 5 Figure 6 Quad Battery Charger 5 Figure 7 Solar Panel 6 Figure 8 RXT 300 Approval Label 7 Figure 9 RXT 300 Wireless Transceiver w Battery Assembly and Mounting Dimensions 8 Figure 10 RXT 300 Wireless Transceiver Remote Mounting 9 Figure 11 Wiring Diagram for Remote RXT 300 Transceiver Mounti...

Page 5: ...T 300 Wireless IM v List of Tables Table 1 Extension Cable Wire Identification 11 Table 2 RXT 300 Transceiver Wire Identification 12 Table 3 Wire Gauge vs Distance 13 Table 4 Exception Codes 29 Table 5 RXT 300 Register Map 30 ...

Page 6: ...vi Page intentionally blank Shipping Address 4055 Technology Forest Suite 100 The Woodlands Texas 77381 Mailing Address P O Box 8067 The Woodlands Texas 77387 8067 Phone 888 367 4286 281 367 4100 Fax 281 292 2860 www detcon com sales detcon com ...

Page 7: ...en RXT 300s Any RXT 300 can become master of the wireless network no single point of failure Each RXT 300 processes local and network data and determines alarms independently Alarm Zones allows grouping of RXT 300s Sensors to specific Alarm Stations Up to four sensors per RXT 300 Up to two 4 20mA sensors per RXT 300 Up to four fully configurable Alarm Outputs per RXT 300 Can add multiple HMI Human...

Page 8: ...more sensors attached and the Alarm Station for system alarm indication These three basic assemblies are then duplicated and located as needed by the customer Figure 2 shows the Detcon versions of the typical SmartWireless assemblies Each device within the SmartWireless assemblies has been chosen or designed for low power operation and can therefore be powered using the Detcon Smart Battery pack a...

Page 9: ...by the military to resist jamming but later was widely adopted for wireless implementations since it was robust in noisy environments DSSS transmits data across a wider frequency range than the actual frequency range required for the information This operation minimizes cross talk and interference from other transceivers and is less susceptible to noise from other sources The IEEE 802 15 4 defines...

Page 10: ... e r y P a c k W B U W G N W V Figure 4 Model 100 Terminal Board 1 4 Smart Battery Pack Optional The RXT 300 transceiver can also be powered by an optional battery pack that enables it to be remotely mounted without the need for any cables because of its wireless operation The available battery pack is Detcon s plug in Smart Battery Pack which provides an output of 12VDC See Figure 5 If installed ...

Page 11: ...er that plugs into a standard 120VAC outlet for power The DC end of the adapter plugs into the DC power jack of the charger providing 24VDC The Quad Battery Charger has four charging ports each with 8 pin Beau connectors for battery pack connection The ports and connectors are keyed to prevent incorrect positioning and connection Each port has its own FAULT LED indicator and CHARGE LED indicator a...

Page 12: ...ry packs can remain connected to the charger even after a full charge indication Green Charge LED is shown due to the protection circuitry of the battery pack which prevents any overcharging issues 1 6 Solar Panel Optional Detcon also offers an optional solar panel to be used in conjunction with the Smart Battery Pack It provides 24VDC output and connects to the J5 connector of the Model 100 Termi...

Page 13: ...ion box If a good ground connection is not made the sensor can be grounded to the junction box using the sensor s external ground lug Also verify a good ground connection between the junction box and earth ground 5 Proper precautions should be taken during installation and maintenance to avoid the build up of static charge on the plastic weather guard of the transceiver 6 Do not substitute compone...

Page 14: ...option secure the wireless transceiver assembly to the mounting plate using two of the four 3 8 diameter holes located on the top face of the mounting plate If not already done so from the factory The whole assembly can now be mounted on a secure wall using the four 7 16 diameter holes located on the base of the mounting plate See Figure 9 The assembly can also be mounted to a pole with two U Bolt...

Page 15: ...MI R B K W B U G N J2 B U W B K R W W B R B K W IR E L E S S J1 J4 J6 J8 J3 T P2 m A S A W B W A S B J 7 T P 1 1 2 3 2 3 4 5 6 7 1 E xt er na l D C Po w er In 7 30 V D C S pa re M od B us R X T 32 0 Tr an sc ei v er Sl a ve D ev ic e M as te r C on tr ol le r R e m ot e M on it or R X T Pr og In te rf ac e Lo op P o w er ed L E D Di sp la y R X T Pr og P or t D et c on U se O nl y J 5 S m ar t B a...

Page 16: ...a y R X T P r o g P o rt D e t c o n U s e O n l y J 5 S m a rt B a tt e r y P a c k W B U W G N W V Figure 11 Wiring Diagram for Remote RXT 300 Transceiver Mounting Remote Mounting Steps 1 Remove the J Box cover of the RXT 300 wireless transceiver assembly 2 If the wireless transceiver assembly has the Smart Battery Pack unplug the battery pack from the terminal board by pulling the battery pack ...

Page 17: ...on terminal board with Ground and thread the NPT cord connector to the bottom of the remote J Box 11 Install the J Box cover of the remote J Box 12 Feed the other end of the cable through another NPT cord connector and then into the NPT hole of the T Outlet box connected to the J Box housing the Model 100 Terminal Board 13 Connect the cable wires to the 6 pin Phoenix connector from step 3 per the ...

Page 18: ...ed to but can come from alternate DC sources such as the optional Smart Battery Pack solar panel or external customer supplied DC source If an external power source is installed the RXT 300 wireless transceiver requires two conductor connections for the power supply External DC power can be customer provided with an output voltage range between 7 to 30VDC or by Detcon s optional 24VDC solar chargi...

Page 19: ...9600 baud 8 data bits 1 stop bit no parity through the transceiver s connection to the Modbus device It is necessary to set a Modbus address for the RXT 300 unless operating in transparent mode 2 3 3 Alarm 1 4 Each RXT 300 wireless transceiver provides outputs for up to four alarms Alarm 1 Alarm 2 Alarm 3 and Alarm 4 which can drive relays on custom terminal boards provided by Detcon The outputs a...

Page 20: ...ceiver Wiring to from Transceiver External 24VDC Connections Rotary Switch for Modbus Address 01 2 3 4 5 6 7 8 9 A B C D E F Figure 13 DC Battery Alarm Board 2 3 4 4 20mA A B The RXT 300 supports up to two 4 20mA signal inputs A and B used for monitoring 4 20mA devices See Figure 14 For the primary 4 20mA signal input use A green wire For the secondary 4 20mA signal input use B yellow wire The inp...

Page 21: ... detected the controller activates alarms to alert the user In a system using the RXT 300 SmartWireless Transceiver sensors that are attached to a RXT 300 as part of a Sensor Station are located at different physical locations around the site Data must be collected from all of these sensors as if they were wired to a single controller In addition to sensor data RXT 300 status such as battery life ...

Page 22: ...een made available for access through Modbus registers on the RXT 300 NOTE An HMI Station Modbus controller only monitors the network and does not perform the actual polling of sensors and processing of alarms It only provides the user a visual status of the system and managing of alarms events such as alarm reset inhibit silence The RXT 300 will allow a direct access to sensor data as if it were ...

Page 23: ...ster and process alarms much like sensors on the Modbus interface 3 4 Alarm Station Operation Alarms can come from several different sources These not only include sensors but RXT 300s and network based alarm events These alarm events are eventually mapped to just four alarm outputs Alarm 1 4 on an RXT 300 All RXT 300s will generate alarms on their alarm outputs but most stations do not have any a...

Page 24: ...put to just follow the current state of any alarm condition The Silence able property allows the user to turn off the Alarm output even though there is an existing alarm If the alarm goes away and comes back again silence is removed and the Alarm output will become active again The Non Silence able setting does not allow the Alarm output to be silenced NOTE At power up or reset the default for Ene...

Page 25: ...f sensor data NOTE Even though the network may be asleep since all network data is updated and stored locally within a RXT 300 external Modbus controllers can still poll this data continuously as if the devices are still available When the RXT 300s wake up this data will be updated to the latest values Sleep can be disabled in systems where battery life is not an issue or if the RXT 300s are not b...

Page 26: ...t causes every RXT 300 with sensors to increment sensor values in 5 increments and when the range is reached it will then decrement by the same amount These values increment based upon the RXT 300s poll cycles not time The HMI Panel will display the incrementing decrementing values as well as Alarm conditions 3 6 4 RF Silence RF Silence is used to force all RXT 300s to disable their transmit funct...

Page 27: ...zed Latching and Silence able The added configuration is related to the system and wireless setup as well as the RXT 300 with its Modbus addressing and alarm conditions This configuration data is captured using the RXT 300 Wireless Configuration Tool WCT It is a portable unit that includes a LCD touch panel display with an application installed that help the user build a system configuration as we...

Page 28: ...use then there will be more RXT 300 RF channels available Figure 16 RF Channel Comparisons between 802 15 4 and 802 11 If interference is suspected or determined using the figure above a different RF Channel can be selected and tried The RF Channel can be changed multiple times if needed to find better a channel if needed Network Sleep Network sleep is also applied across the whole system The defa...

Page 29: ...bus address is automatically generated by the WCT as each RXT 300 is added This address is then used by the HMI Panel to communicate over the Modbus Battery Attached If there is a battery installed this will be selected in the RXT 300 The user will need to determine when a low battery alarm will be generated if there is a battery Time remaining alarm is set in Days Hours Minutes Alarms There are t...

Page 30: ...Outputs 1 4 Range is set to the range of the device output and is used to scale 4 20mA values during alarm threshold processing and to determine over under range for known Detcon types Most of these settings will default to common values but should be reviewed by the customer 4 3 System Parameters Detailed This section covers in detail settings that affect operation of the RXT 300s system wide The...

Page 31: ...ll be placed in and the Alarm Output property settings Some of these are grouped and set within submenus on the WCT 4 4 1 RXT 300 Main Settings RXT Name Alphanumeric name for the RXT 300 in the system Set to a meaningful name for the user and the first several characters will appear on the HMI Panel display Has no operational significance Unique Device ID Precisely identifies the RXT 300 using the...

Page 32: ...is a submenu of advanced settings that can be adjusted such as Modbus timeouts and retries or network timeouts and retries These would not be changed normally unless directed by Detcon personnel 4 5 Device Parameters Detailed After setting up the RXT 300 parameters the user must identify and add the devices sensors that will be used in the system These settings define the Sensor type Modbus settin...

Page 33: ...e six events that are monitored Alarm 1 2 3 Thresholds Fault Communication Error and Modbus Exception These can be mapped to any of the four Alarm outputs Alarm 1 2 3 Thresholds events occur when the user defined setpoints are crossed Fault is monitored if it is a Detcon device type and the device has fault status that can be read Communication Errors occur when there is no response when a Modbus ...

Page 34: ...t 5 2 General Modbus Description Modbus communication operates basically the same on a RXT 300 whether the Modbus interface is configured as a slave for a HMI controller or as a master to poll local sensors attached The physical interface for Modbus is a two wire half duplex RS 485 interface and runs at 9600 baud 8 data bits 1 stop bit no parity The RXT 300 performs Modbus communication using the ...

Page 35: ...8192 then this is an Illegal Data Address since 8191 does not fall completely within the valid register range This would not be an exception though if register address 8190 to 8191 were used this would be passed on to the Modbus interface for a local device to respond There are other exception codes defined in Modbus but these are the only ones returned by the RXT 300 5 3 Modbus Register Map Descr...

Page 36: ...C F W Year Microcontroller Firmware Year 48 R Radio F W Version Radio Firmware Version 49 R Radio F W Build Radio Firmware Build 50 R Radio S W Version Radio Software Version 51 66 Reserved 67 R W Control Control Register 51 71 Reserved 72 R Status Status Register 73 98 Reserved 99 R Timestamp Secs Hi Time from Startup Seconds High 100 R Timestamp Secs Lo Time from Startup Seconds Low 101 R Timest...

Page 37: ...ife readings For instance an Alarm Station with no alarms will consume a very small amount of battery but when Alarms are active this will jump to a much higher level of usage So in this case battery life may go from several weeks down to several hours The battery life is presented in two forms life remaining in percentage register 7 and life remaining in minutes register 8 The battery Life remain...

Page 38: ...ed upon completion on local RXT 300 Bit 00 Performs an Alarm Reset when set to a 1 Cleared upon completion on local RXT 300 5 3 9 Register Status This register contains status of the RXT 300 and some of the bits have already been covered in the battery description These default to 0 upon reset The bit assignment and description are given below Bit 15 Battery Attached or Detected Bit 14 10 Reserved...

Page 39: ...twork Verify correct polarity on Modbus wiring Condensation Problems Probable Causes Loose cover on T Outlet box loose cover on transceiver housing loose NPT connections to condulet j box expired condensation prevention packet Verify cover is tight on T Outlet box and transceiver housing Verify all NPT connections are secure and tight Replace condensation prevention packet 7 0 Warranty Detcon Inc ...

Page 40: ...lation 0 QPSK Sensitivity 102dBm 1 PER Inputs Two 4 20mA inputs Inputs Outputs RS 485 Modbus RTU 9600bps Power Input 7 30VDC Power Consumption Base RXT 300 unit 500mW 20 mA max at 24VDC Total Power is dependent on communication update rate between RXT 300 transceivers Operating Temperature Range 40 C to 85 C Approvals cETLus Class 1 Division 1 Groups CD ATEX II 2 G Ex d ib ib IIB T6 pending CE Mar...

Page 41: ...Cover Required for Battery Option 960 202200 000 Condensation prevention packet For condulet replace annually 800 004221 000 Mounting Plate 8522 750 NPT Plug 899 15075 NPT x 1 5 Nipple 897 044400 34T NPT T Outlet Box w Aluminum Cover 898 52310 NPT Drain 899 07550 NPT to NPT Adapter Required for Drain 500 005143 100 Model 100 Terminal Board 976 000303 012 12V Smart Battery Pack 976 000304 004 Quad ...

Page 42: ... Rev 2 0 Page 36 of 41 8 2 Revision Log Revision Date Changes made Approval 1 0 05 19 10 Original Release LBU 1 1 11 12 10 Update to table 1 Wire Identification LBU 2 0 01 03 12 Extensive revision and detail added to all aspects of manual LBU ...

Page 43: ...JP5 1 2 JP6 1 2 JP7 1 2 Modbus B White Ground Black mA Green Modbus A Blue Analog Serial Sensor or RTU Power Red mA Green Figure 18 Analog Serial Sensor or RTU to RXT 300 RXT 300 Wireless Transceiver Modbus B White Modbus A Blue N C N C Terminal Board S E N S O R H M I R B K W B U G N J 2 B U W B K R W W B R B K W I R E L E S S J 1 J 4 J 6 J 8 J 3 T P 2 m A S A W B W A S B J 7 T P 1 1 2 3 2 3 4 5 ...

Page 44: ...hite Jumper Setting JP1 1 2 Serial Sensor Figure 20 Serial Sensor to RXT 300 RXT 300 Wireless Transceiver Modbus B White Modbus A Blue N C N C Terminal Board S E N S O R H M I R B K W B U G N J 2 B U W B K R W W B R B K W I R E L E S S J 1 J 4 J 6 J 8 J 3 T P 2 m A S A W B W A S B J 7 T P 1 1 2 3 2 3 4 5 6 7 1 N o t U s e d R X T 3 0 0 T r a n s c e i v e r H M I P a n e l R X T 3 0 0 P r o g I n ...

Page 45: ... Settings JP1 2 3 JP2 1 2 JP3 1 2 JP4 1 2 JP5 1 2 JP6 1 2 JP7 1 2 Analog Sensor 1 Power Red Ground Black mA Green Power Red Ground Black mA Green Analog Sensor 2 Figure 22 Two Analog Sensors to RXT 300 Modbus A Blue Terminal Board Power Red Ground Black SDA White Brown SCL White Black Programming Reset White Violet Programming Data White Green Programming Clock White Blue Power Red Ground Black So...

Page 46: ...P o w e r I n 1 1 5 3 0 V D C Transient Protection Module m A Y A B m A Y A B m A Y A B I N O U T S E N S O R Modbus B White Ground Black Power Red Modbus A Blue Serial Sensor 2 Transient Protection Module m A Y A B m A Y A B m A Y A B I N O U T S E N S O R Modbus B White Ground Black Power Red Modbus A Blue Transient Protection Module m A Y A B m A Y A B m A Y A B I N O U T S E N S O R Modbus B W...

Page 47: ...odbus B White Ground Black Power Red Modbus A Blue mA Green Modbus B White Ground Black Power Red Modbus A Blue Serial Sensor 4 Transient Protection Module m A Y A B m A Y A B m A Y A B I N O U T S E N S O R Modbus B White Ground Black Power Red Modbus A Blue Modbus B White Ground Black Power Red Modbus A Blue Serial Sensor 1 Modbus B White Ground Black Power Red Modbus A Blue Serial Sensor 3 Powe...

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