User Manual LANDMARKA
Contents
1. 2 2 1 6 ABOUT menu This menu supplies information about local supplier contact and revision number UP or DOWN scrolls through the information ENTER exits to the main menu J373 Landmarka UserManual 1 02 doc 2 2 2 Configuration The configuration required at the receiver is merely matching up the addressing choices of the transmitter Section 2 1 2 1 describes setting the receiver address as where the data is being sent to This address can also be seen as a system address which means that all the devices in a particular system share this same address In the example below all the transmitters with the RX address switch set to 7 communicate with receiver number 7 Any devices on another RX address do not communicate even if they are on the same radio frequency as Transmitter TXaddr 0 N RX addr 3 Transmitter TX addr 0O RX addr 7 Receiver a RXaddr 3 Transmitter 7 PR ee n i TX addr 1 j o RX addr 7 Receiver RX addr 7 g Setting the receiver address is achieved by means of the menu system described in section 2 2 1 2 The remaining task is to ensure that the transmitters are assigned to the correct outputs on the receiver This is calculated by adding the value of the receiver s TX Address switch to the channel number 0 or 1 which should equal the Transmitter s TX address switch This is simpler by example o p o f o f Co p o o2. 0 is a good choice section 2 2 2 14 Power up the unit and set the Receiver address section 2 2 1 2 15 The continual flashing light confirms a healthy power supply 16 Set the Global Timeout its best to set this at twice the TX report rate section 2 2 1 2 17 Set the digital outputs to normally open or normally closed as desired section 2 2 1 2 18 If you have analogues calibrate the outputs according to the calibration instructions section 2 2 1 3 you can also test your digital outputs with this function as well 19 Go back to the display menu and observe radio activity by selecting Signal Strength section 2 2 1 1 20 If your transmitter is communicating then your Sync light will flash 21 Close the cabinet
3. Receiver There is no need to become involved with any higher level equipment such as computers or hand held terminals Calibration of analogue signals can be simply achieved in the field using a screwdriver and current or voltage sources It is easily understood easily installed licence free and cost effective compared to other means of data transmission Landmarka is designed for low bandwidth signals found in monitoring applications typical of the water and electricity utilities It has a secure communication method proven in service over the last 20 years so the signal s integrity is highly reliable Landmarka also has additional system health features such as remote power loss detection communication quality indicators making it superior to cable in many situations J373 Landmarka UserManual 1 02 doc 1 1 System capacity 1 1 0 Basic system The basic Landmarka system consists of a transmitter and a receiver It is a one way system and securely transports signals from the transmitter to the receiver The transmitter has a capacity for 8 contact inputs 2 pulse inputs and 2 analogue signals The receiver has exactly the same outputs as the transmitter inputs and so the system can be seen as a multi core cable 8 contacts 8 contacts 2 pulses 2 analogues a 2 pulses 2 analogues 4 Transmitter Receiver Contact inputs These are volt free or switch inputs A change i
4. User Manual LANDMARKA A manual for users of the Landmarka low power radio telemetry system Operation deployment and maintenance Revision 1 02 E2L Holdings 2009 Contents LANDMARKA Low Power Radio Telemetry About this manual Landmarka Important Installation Warning 1 0 System function 1 1 System capacity 1 1 0 Basic system Contact inputs Pulse inputs Analogue inputs 1 1 1 Extended system 2 0 Operating instructions 2 1 Transmitter 2 1 1 General Layout 2 1 2 Configuration 2 1 2 1 Address setting 2 1 2 2 Reporting rate 2 1 2 3 Interface Options Digital input bias Instrument Power Analogue inputs 2 1 3 Connecting instruments 2 1 3 0 Digital or switch inputs 2 1 3 1 Pulse inputs 2 1 3 2 Analogue inputs 2 1 2 3 Analogue instrument wiring 2 1 4 Calibration J373 Landmarka UserManual 1 02 doc 2 2 Receiver 2 2 1 Menu System 2 2 1 1 DISPLAY menu 2 2 1 2 USER VARIABLES menu 2 2 1 3 CALIBRATE menu 2 2 1 4 CONTRAST menu 2 2 1 5 PROTOCOL menu 2 2 1 6 ABOUT menu 2 2 2 Configuration 2 2 3 Connecting to external devices 2 2 3 0 Digital or switch outputs 2 2 3 1 Pulse outputs 2 2 3 2 Analogue outputs 2 2 3 3 Analogue instrument wiring 2 2 3 4 Alarm outputs 2 2 3 5 Power outputs 2 2 3 6 Power Inputs 2 2 3 7 Serial Outputs 2 2 3 8 Antenna connection 2 2 3 9 Bus extension system builders 2 2 5 Interfacing to a serial device for advanced users 2 2 5 0 LANDMARKA prot
5. etc 2 2 3 2 Analogue outputs There are 2 analogue channels available per TX channel They can be output as 0 1V 0 10V 0 20mA or as an isolated 4 20mA Connection diagrams are given below J373 Landmarka UserManual 1 02 doc 2 2 3 3 Analogue instrument wiring 0 10V Output POWER OUTPUT PLC 0 10V output Datalogger Alarm panel etc ANALOGUE 1 OV 0 1V Output PLC 0 1V output Datalogger Alarm panel etc oV 0 20mA Non isolated Output This is the non isolated output so the bottom of the loop must be referenced to OV The loop power can be derived from an external supply or the LANDMARKA power output An example of each is given LANDMARKA loop power supply 12V Loop ov POWER OUTPUT powered device e g meter annunciator etc ANALOGUE 1 0 20mA sink External loop power supply Loop powered device e g meter annunciator etc 0 20mA sink J373 Landmarka UserManual 1 02 doc 4 20mA Isolated Output This is the isolated output so the connection can be made anywhere in the loop Normally the loop power is derived from an isolated external supply these can be individual LANDMARKA PSU modules or a non isolated supply can be sourced from the LANDMARKA power output An example of each is given External loop power supply Isolated Loop POWER OUTPUT powered device e g meter an
6. can be switched on prior to reading to save power and the period of power up can be changed Analogue inputs can be defined as current or voltage Digital input bias DIGITAL PULLUP In most cases the digital input device will ov sv be a volt free contact or switch In that is case the digital inputs require a low l owt power pull up so the DIGITAL PULLUP r sae switch should be in the 5V position tice However some instruments are active high and in that case the switch should be moved to the OV position Digital input pullup switch In the picture the switch is in its normal position for volt free or switch inputs Instrument Power ieee edie If the instrument requires power then this can be supplied from the controller The supply can be permanenily on or for low power consumption the supply can be switched on just before the instrument is read If the switched power mode is being used then the settling time before reading the instrument can be selected ret 1s or 0 18 settling time In the picture switched power with 1s eT settling time is selected Permanent or switched instrument supply switch Analogue inputs There are two analogue inputs and each one can be selected as current or voltage inputs Moving the analogue mode switch upwards selects Current 1 downwards selects voltage V Switch 1 corresponds to analogue input 1 switch 2 corresponds to analogue input 2 Cur
7. the alarm outputs PULSE OUTPUTS In the same manner the pulse outputs can be exercised Pressing or will provide a pulse at the output ANALOGUE OUTPUTS Pressing the or keys in this menu causes a current and voltage to be output on all the analogue outputs The calibration process for adjusting offsets and span per analogue output is explained in section 2 2 4 J373 Landmarka UserManual 1 02 doc 2 2 1 4 CONTRAST menu This menu adjusts the contrast of the display or adjusts and ENTER exits to the main menu 2 2 1 5 PROTOCOL menu This section is only relevant if you are interfacing to a serial device If the LANDMARKA is to interface directly to a serial device such as a datalogger or computer the protocol menu allows the user to choose which protocol to use and what physical interface Pressing UP or DOWN scrolls through the options ENTER selects a sub menu INTERFACE Pressing or will cycle the choices of interface type The two choices are the industry standard MODBUS database protocol or a simpler ASCII serial event driven protocol proprietary to the LANDMARKA product SLAVE ADDRESS Slave address selection is only relevant if MODBUS protocol has been selected Pressing or will change the MODBUS slave address ENTER will save and exit to the Protocol sub menu SERIAL MODE Pressing or will cycle the choice between RS485 or RS232 serial interfaces
8. Mini Nill Weill A sa icona E w J373 Landmarka UserManual 1 02 doc N a A Waso S iod Bao E A aa E e w 10017 As above 1 10032 10033 As above 2 10048 10257 As above 1 10272 10273 As above 1 1 10288 14081 As above F F 14096 In algebraic terms Any MODBUS start address ADDR must obey ADDR 10001 8 an integer Maximum usable address is 14081 Any MODBUS length LEN must obey LEN 8 an integer To calculate the MODBUS start address for a given transmitter if we know its TX and RX addresses ADDR RXaddr 16 TXaddr 16 10001 For example TX 0 RX 0 ADDR 10001 TX 5 RX 2 ADDR 10593 J373 Landmarka UserManual 1 02 doc Function 03 Read Input Registers MODBUS Input Registers are mapped to addresses 30001 onwards one 16bit word per address This allows interrogation of the 16 bit values received from a LANDMARKA transmitter and held in the database Namely Analogue 1 Analogue 2 Pulse Counter 1 and Pulse Counter 2 The Analogue readings are right justified 12bit readings with leading zeros The maximum analogue reading therefore is OxO3FF or decimal 1023 Four MODBUS addresses are used per Landmarka transmitter Input LANDMARKA TX TX Address RX Address Register input 30001 E 1 30003 Pulse 1 30004 Pulse 2 30005 30007 Pulse 1 30008 Pulse 2 In algebraic terms Any MODBUS length LEN must obey LEN ADDR lt 31025 To calculate the MODB
9. US start address for a given transmitter if we know its TX and RX addresses ADDR RXaddr 16 TXaddr 4 30001 For example TX 0 RX 0 ADDR 30001 TX 5 RX 2 ADDR 30149 J373 Landmarka UserManual 1 02 doc 3 0 Rapid Set up Guide This guide assumes there are no other LANDMARKA units on site and it is a point to point system If there are other systems then their addressing need to be checked to avoid clashing 3 0 1 Transmitter Fonz Ensure the antenna is correctly installed Ensure the power supply is correctly installed section 2 1 3 4 Connect your instruments section 2 1 3 0 2 1 3 3 Using a small screwdriver I Set the TX address if you only have one transmitter O is a good choice li set the RX address to a random value and make a note of it Set the report rate to your desired amount section 2 1 2 2 Power up the unit and note the green LED flashing 5 times every report rate interval section 2 1 2 2 If you have analogue inputs go through the calibration procedure section 2 1 4 Ensure you have come out of calibration no red lights green light flashes occasionally Close up the cabinet 3 0 2 Receiver 10 Ensure the antenna is correctly installed 11 Ensure the power supply is correctly installed section 2 2 3 6 12 Connect your outstation datalogger PLC annunciator etc Section 2 2 3 13 Using a small screwdriver set the TX address if you only have one transmitter
10. alibration mode the status register becomes the sole source of information for driving the pods and uses the following codes 00 Output digitals 11001100 TXF 0 Batt Low 0 01 Output digitals 11111111 TXF 1 Batt Low 1 02 Output digitals 10101010 TXF 1 Batt Low 0 03 Output digitals 01010101 TXF 0 Batt Low 1 08 Output Pulses ON 09 Output Pulses OFF 10 Output Analogues at 4mA or 20 V 11 Output Analogues at 20mA or 100 V 12 Output Analogues at 10mA or 50 V Analogue inputs channel 0 10 bits resolution right justified i e always has a leading zero Ranges from 000 to 3FF Analogue inputs channel 1 10 bits resolution right justified i e always has a leading zero Ranges from 000 to 3FF Digital inputs Range 00 to FF Pulse Counter 0 16 bits PO3 is most significant character Range 0000 to FFFF Pulse Counter 1 16 bits P13 is most significant character Range 0000 to FFFF Global Timeout in minutes 256 maximum The receiver s base address 0 F Flag Defines if the message is true or false Flag can be F or T Message End lt CR gt lt LF gt The end of message is always terminated with the ASCII lt CR gt character code 0x0D followed by an ASCII lt LF gt character code Ox0A J373 Landmarka UserManual 1 02 doc 2 2 5 1 MODBUS protocol The MODBUS over serial line protocol is implemented as an RTU remote Terminal Unit It is therefore a Master Slave implementation of OSI
11. arka Display User variables Calibration Contrast Protocol Digitals Pulse Counter 1 Pulse Counter2 Status MONITOR gt Raw received data USER VARIABLES Addressing Timeout Digital Return ADDRESSING gt System address O O O O ABOUT gt Supplier gt Phone number gt Revision TIMEOUT gt Global timeout mins DIGITAL gt Normally open closed PROTOCOL gt Retain Fail Safe Interface Slave Address Serial Mode Return CONTRAST gt to change CALIBRATE gt Exercise digital outputs gt Exercise pulse outputs gt Calibrate analogue SERIAL MODE INTERFACE gt RS232 gt LANDMARKA J373 Landmarka UserManual 1 02 doc 2 2 1 1 DISPLAY menu The display menu allows the user to view the latest data to be received on a channel specific basis It also provides a bargraph display for radio signal strength and a data monitor which indicates all received data in its raw form Pressing the ENTER key will always exit from the sub menu The main features of these menus are detailed below SIGNAL STRENGTH The received signal strength is a very useful utility to see if there is a good radio signal present The scale indicates 0 to 100 This screen is also invaluable when using a directional antenna in order to determine the optimal position for good reception CHANNEL DATA Channel data allows the user to see the ast received data for a specific channel The channel ca
12. e once the unit has been installed configured and calibrated it is unlikely that anything will be changed Refer to our installation guides that cover antenna mounting and tips on getting the best over long range systems This manual covers the configuration and calibration of the system 2 1 Transmitter The Landmarka transmitter is a low powered 12V system Its power can be derived from local mains supply batteries or 12V solar or wind supply For legal reasons the transmitter cannot emit more than 500mW of RF power The standard transmitter uses a 10mW radio so directional antenna can be used with great effect Please discuss your antenna choice with your agent If you are using the 500mW radio option then the antenna must have a gain of OdB or less 2 1 1 General Layout Transmitter Module CALIORATE RATE Power n HAE Ca BR aa ot H A a ye ai Supply s gt Mey eae TTIR LISA 3 k He pile Battery Backup A backup battery can provide continued operation during a temporary power failure and is trickle charged via the transmitter s circuitry If a solar or wind generator is used then a separate battery is required 2 1 2 Configuration All configuration is simply achieved by setting switches on the controller There are essentially three steps to configuring the transmitter 1 Address setting 2 Reporting rate 3 Interface options J373 Landmarka UserManual 1 02 doc 2 1 2 1 Address sett
13. e f e T T a For most single transmitter point to point systems TX address should be set to 0 and the outputs will appear on Channel 0 J373 Landmarka UserManual 1 02 doc 2 2 3 Connecting to external devices LANDMARKA outputs hardwired signals as a direct mimic to transmitter inputs This means that for any set of transmitter inputs exactly the same signals are output at the receiver end Certain system health signals are also provided as hardwired connections In addition provision has been made but is not a requirement to interface via a serial port to outstations computers PLCs or dataloggers Finally the link may be used as an analogue signal converter changing current to voltage and vice versa as well as modifying ranges 2 2 3 0 Digital or switch outputs There are 8 outputs available each of which is opto isolated and volt free Each output is capable of switching 6OVAC peak at 400mA Each switch output has an LED indicator and is connected via a corresponding two terminal screw contact In the picture digital outputs 3 and 5 are in use DIGITAL PLC Datalogger Alarm panel etc 2 2 3 1 Pulse outputs There are 2 outputs available each of which is opto isolated and volt free They have the same specification as the digital outputs Each pulse output has an LED indicator and is connected via a corresponding two terminal screw contact In the picture pulse output 2 is being used PLC PULSE Datalogger
14. e length of timeout can be chosen by pressing the or keys The choice of timeout should be adjusted to the sensitivity of the application Typically a timeout just over twice the transmitter rate switch is a good working rule So for a transmitter with a RATE switch set at position 4 3 minutes then a timeout of 7 minutes would be sensible DIGITAL Many systems require variations on their digital input status For instance normally closed or normally open contacts This feature is included in Landmarka and adds a facility that normal direct cabling cannot do Also should there be a communication failure the choice to retain the last received reading or revert to a fail safe condition is also provided or changes the options UP or DOWN scrolls the options ENTER saves the choices and returns from this sub menu J373 Landmarka UserManual 1 02 doc 2 2 1 3 CALIBRATE menu The calibrate menu allows the user to both calibrate the analogue channels and to check the pulse and digital output functions Pressing UP or DOWN scrolls through these options DIGITAL OUTPUTS Pressing or will cycle the digital outputs through the screens providing four variations of output condition Each digital output has a corresponding LED which indicates its output status This facility is also useful for providing predefined inputs into monitoring equipment or telemetry outstations This method also exercises
15. ing Address setting defines both where the data is coming from and where the data is going to On a site using several Landmarka systems then having different addresses allows data to be directed from specific transmitters to specific receivers Land mie s Je Telemetry Transmitter 12V or 1 Fsw ee 1s Fa CARATI RATE DIGITAL a oieee Receiver address Transmitter address This is where the data from this This defines which transmitter this unit transmitter will go is so that the receiver can detect which Values can be output channel to use 0 1 2 3 4 5 6 7 8 9 A B C D E or F Tvoicallv this will be O or 1 For a single transmitter system always set the transmitter address to 0 2 1 2 2 Reporting rate The reporting rate is the frequency that the transmitter wakes up and sends a message When data is sent the ACTIVE LED flashes 5 times The LED also flashes once every 15s to show that the transmitter is running Re Setting the report rate switch determines 9 the wake up period according to the following table ao 15s Active LED 30s LIBRATE RATE ADDI 1m r m 3m 4m lt g A S gt ois sa 7m 8m 1 620 p B 9 m 10m 15m 20m 25m 30 m Report Rate Switch TMMUOUOWPOANDUAWDY O J373 Landmarka UserManual 1 02 doc 2 1 2 3 Interface Options There are several switches that accommodate various instrument specifications In particular digital inputs can be pulled up or down instrument power
16. ions for transmitter address 0 apply equally to transmitter address 1 it is merely the next physical set of output terminals Power Supply Receiver Communications Receiver Output Module Module ee ee tu ANTI PE SA tae oat tt ete are Vi esate SE RRA Es SE PD SN ee ONN cy s a Rd P S g d MIM RANA Backup batteries Antenna Connection The Landmarka Receiver differs from the Transmitter in that it has an LCD display and a simple keyboard which enables easy configuration and calibration of the channels It also provides diagnostics for factory and site testing The display also reports received signal strength which is extremely useful when positioning directional antennae The keyboard consists of 5 buttons which allow for 1 UP and DOWN scrolling of menu options 2 and changes variable values 3 ENTER to select options or to exit menus J373 Landmarka UserManual 1 02 doc All menus work in the same way and are very intuitive 2 2 1 Menu System The full menuing system is below However once the system is installed and calibrated only a few of the screens are generally unused The DISPLAY menus provide access to numerical information if required Configuration is handled by the USER VARIABLES menu and calibration by the CALIBRATE menu SIGNAL STRENGTH DISPLAY gt Bargraph of RSSI o Signal Strength o Channel Data o Monitor o Return Channels Channel number Analogue Analogue2 Landm
17. layers 1 amp 2 The slave address of the LANDMARKA MODBUS RTU is set using the Protocol Slave Address menu section 2 2 1 5 Note this address has no relationship to the LANDMARKA system address it is the address of the MODBUS RTU This implementation of the protocol supports the following MODBUS functions e Function 01 Read Discrete Inputs e Function 03 Read Input Registers It also supports the following exception responses Exception 01 Illegal Function Code Exception 02 Illegal Data Address out of range Exception 03 Illegal Data Value unallowable value Exception 04 Slave Device Failure uncompleted action Function 01 Read Discrete Inputs MODBUS Discrete Inputs are mapped to addresses 10001 onwards one bit per address In this particular implementation multiples of 8 bits must be read at any one time Failure to do this will result in an 03 exception response It follows that an address must be equal to multiples of 8 plus 1 e g 0 9 17 25 33 41 etc otherwise an 02 exception error will be raised LANDMARKA maps its MODBUS Discrete Inputs as the digital or volt free inputs of its transmitters and their corresponding data registers Consequently there are 16 discrete inputs per transmitter This is more easily illustrated in the table below 0 indicates a closed input 1 indicates open input Discrete LANDMARKA TX TX Address RX Address Input input a fail a wtf w
18. mitters Data Format The protocol is a simple fixed length packet containing 27 ASCII characters It always starts with either an ASCII lt STX gt or lt ET X gt character and terminates with a CR LF sequence Packet Length 27 ASCII characters Frame Structure The frame or packet structure is as follows Payload Message End There are no field delimiting or separating characters All numbers are expressed as ASCII hex e g 3AF8 The string is transmitted as lt STX gt A1 A0 S1 SO An5 An4 An3 An2 An1 An0O D1 DO P03 P02 P01 POO P13 P12 P11 P10 G1 GO R F lt CR gt lt LF gt Preamble lt STX gt The start of a RF message is indicated with the ASCII character code 0x02 lt ETX gt The start of a calibration message is indicated with the ASCII character code 0x03 Payload The payload consists of twenty four ASCII characters A1 A0 S1 SO And An4 An3 An2 An1 And D1 DO P03 P02 P01 POO P13 P12 P11 P10 G1 GO RF where A1 A0 The address This ranges from 00 to FF Each address can be viewed as a channel worth of information A1 represents the transmitter address AO the receiver or system address J373 Landmarka UserManual 1 02 doc S1 S0 An5 An3 An2 An0 D1 D0 P03 P00 P13 P10 G1 G0 R F Status register S1 is the rate switch setting SO will indicate the individuals cumulative status as follows Value Function ALL OK PSU fail Battery fail PSU amp Battery fail In c
19. n 26s bids RS232 RS232 Serial gt Device RS485 RS485 Serial Device 2 2 3 6 Antenna connection The antenna needs to be correctly positioned The connection to the receiver is a 500hm BNC connector which requires high quality coax feeder cable or direct antenna connection 2 2 3 9 Bus extension system builders The LANDMARKA receiver can be expanded to provide up to 16 channels of output hardware i e receive 16 transmitters This is done by adding two channels at a time using the unmarked three pin connectors These can be connected as daisy chains in any sequence as long as the pin identity is preserved J373 Landmarka UserManual 1 02 doc 2 2 5 Interfacing to a serial device for advanced users LANDMARKA can be used as an intelligent communication receiver providing all the channel information through its serial port The electrical interface can be RS232 or RS485 running at 9600 no parity 8 data 1 stop bit The data is accessible either as a database using the industry standard MODBUS database protocol or using an event driven protocol proprietary to the LANDMARKA product 2 2 5 0 LANDMARKA protocol The LANDMARKA protocol is a simple ASCII protocol which is event driven That is it transmits an ASCII data string every time it receives aLANDMARKA packet regardless of addressing This later point allows the LANDMARKA receiver to act as a base station for up to 256 LANDMARKA trans
20. n be selected by pressing or keys In the example the receiver address R is set to F and the transmitter address T is set to 1 These correspond exactly to the switch positions in the transmitter controller The UP DOWN keys scroll through the various types of data namely Digital inputs Analogue 1 amp Analogue 2 Pulse 1 and Pulse 2 as well as transmitter health such as battery and PSU condition and the rate switch position in the transmitter MONITOR The data monitor supplies the raw data as it is received in real time This is provided for advanced and factory use RETURN This returns to the main Landmarka menu J373 Landmarka UserManual 1 02 doc 2 2 1 2 USER VARIABLES menu As with the transmitter the main configuration tasks are 1 Address setting 2 Setting report rate timeout 3 Interface options These variables are set using the USER VARIABLES menu ADDRESSING The receiver has an address identified by the numbers 0 to 9 or a letter A B C D E or F This corresponds to the switch position in the transmitters for the receive or system address Pressing or changes the receiver or system address ENTER saves the address Only data received which matches this address will then be output TIMEOUT Landmarka tracks the condition of its communication channel If a message is not received within a specific time then a communication alarm can be raised Th
21. n one of these inputs causes the corresponding output to change The outputs are also simple isolated switch outputs Typical devices with such signals are float switches position switches intruder alarms pump on off status power fail threshold indicators wind vanes and similar two state or ON OFF devices Pulse inputs These are also volt free or switch inputs However the transmitter counts the pulses and sends them to the receiver which outputs the same number of pulses These pulse counters are often referred to as totaliser inputs Typical instruments are flow gauges anemometers electricity meters tachomeiters tipping bucket rain gauges etc Analogue inputs These are voltage or current inputs The signals can range from 0 20mA 0 1V 0 10V At the transmitter they are referenced to supply ground At the receiver they are both referenced to supply ground and for the 4 20mA signal isolated suitable for external loop power 1 1 1 Extended system The basic Landmarka receiver comes with the capacity to receive another transmitter This means that to expand the system only one more transmitter needs to be added 8 contacts 16 contacts 2 pulses _ 4 pulses 2 analogues 4 analogues Transmitter 1 8 contacts Receiver 2 pulses 2 analogues K5 Transmitter 2 J373 Landmarka UserManual 1 02 doc 2 0 Operating instructions Landmarka is essentially a fit and forget devic
22. nunciator etc ANALOGUE 1 Loop powered device e g meter annunciator etc 12V 4 20mA sink 2 2 3 4 Alarm outputs There are 2 outputs per channel which indicate the transmitter s system health each of which is opto isolated and volt free The outputs indicate battery low and communication failure i e the lack of a valid message being received within the global timeout set on the receiver They have the same electrical specification as the digital outputs Each alarm output has a LED indicator and is connected via a corresponding two terminal screw contact PLC PSU FAIL Datalogger Alarm panel TX FAIL etc 2 2 3 5 Power outputs There are 3 outputs per channel which are for supplying Ilow power or ground reference to an external circuit DO NOT EXCEED drawing 200mA from any of these outputs DO NOT APPLY POWER to these terminals 12V ov POWER OUTPUT 12V J373 Landmarka UserManual 1 02 doc 2 2 3 6 Power Inputs The LANDMARKA receiver is 24VDC powered and has battery backup It requires a DC input and this provides a trickle charge for the batteries Connection is via the four way plug on the Communications Module 24V OV SS es Battery 2 2 3 Serial Outputs The LANDMARKA Receiver provides two serial interfaces RS485 and RS232 They are selected using the Protocol Serial Mode sub menu detailed in sectio
23. ocol 2 2 5 1 MODBUS protocol 3 0 Rapid Setup Guide J373 Landmarka UserManual 1 02 doc About this manual Landmarka We have endeavoured to make the Landmarka simple to use but please read this manual to familiarise yourself with all of the operations and especially the safety instructions Whilst this manual is lengthy this is mostly due to the amount of pictures and diagrams Landmarka s strength is that it is extremely simple to use FOR A RAPID SET UP GUIDE GO DIRECTLY TO SECTION 3 0 As with any machine the care that you give it will reflect on its operational life and reliability Please read this manual and take note of the safety and care instructions Because of the sophisticated design of Landmarka none of the internal parts are user serviceable Only have your instrument serviced or repaired by an approved E2L agent who has access to the correct equipment and spares This machine comes with a one year warranty if you have any problems or questions please contact your agent In each section we guide you through the investigation process with examples plus other information that may help Diagrams have been used as much as possible but you should note that these may not always exactly match the machine itself due to the continual policy of product improvement If you have any questions or any advice on improving both Landmarka and this manual please contact your agent An organisation should appoint an nstr
24. rent or Voltage switch analogue channel 2 In the picture both analogue inputs are set for current Current or Voltage switch analogue channel 1 J373 Landmarka UserManual 1 02 doc 2 1 3 Connecting instruments All connections are clearly marked and conform to standard industry practice 2 1 3 0 Digital or switch inputs There are 8 inputs available for digital signals which are divided into 41 two groups of four Pont yO in 32 IF oie The lower four 1 4 are defined as alarm inputs Any change on these inputs will cause the transmitter to immediately wake up and transmit The upper four 5 8 are defined as digital inputs and the status of these inputs is transmitted at the pre defined report rate see 2 1 2 2 Every input has a common pin adjacent to it for easy connection In the picture there are 3 alarm inputs on 1 2 amp 3 and 3 digital inputs on 6 7 amp 8 2 1 3 1 Pulse inputs There are 2 inputs available for pulse signals from instruments with switch or volt free contact outputs Every input has a common pin adjacent to it for easy connection The maximum input frequency is 36HZz 2 1 3 2 Analogue inputs There are 2 analogue channels available each with 3 terminal connections depending on both the range and mode of the input Connection diagrams are given on the next section In the picture Analogue channel 1 is either a 0 20mA or a 0 1V instrument depending on
25. t the current or voltage source to be full scale For voltage this will be 10 0V or 1 0V for current it will be 20 0mA bari R 4 Press the CALIBRATE button E The AN1 LED will gt o illuminate indicating ea D fo that you are e calibrating analogue re Calibrate button igl a channel 1 5 Using a small screwdriver adjust the SPAN and look at the green ACTIVE LED If the LED is off then turn the screwdriver clockwise if it is on turn it anticlockwise When the LED flashes then the unit is calibrated 6 Press the CALIBRATE button again The AN2 LED will illuminate indicating that you are calibrating analogue channel 2 7 Repeat step 5 above 8 Finally press the CALIBRATE button again and both AN1 amp AN2 lights will be off the ACTIVE LED will then flash 5 times indicating normal operation J373 Landmarka UserManual 1 02 doc 2 2 Receiver The Landmarka receiver is powered from 24V Its power should be derived from local mains supply via a Landmarka mains power module Receivers can have antennae with a gain greater than OdB However in most cases a simple 0dB gain antenna will suffice As mentioned in section 1 1 the standard Landmarka receiver can service two transmitters In expanded systems it can provided the outputs for up to 16 transmitters In the receiver description below we shall assume a single transmitter system with transmitter address 0 All the descript
26. the switch positions in section 2 1 2 3 Similarly Analogue channel 2 is a 0 10V instrument J373 Landmarka UserManual 1 02 doc 2 1 3 3 Analogue instrument wiring 0 10V Instrument Analogue 0 10V output 12V POWER O P instrument 10V E 1 iv ANALOGUE1 ov ANALOGUE Lh 12 Analogue mode voltage 0 1V Instrument I 5 Analogue 0 1V output 12V POWER O P instrument E 10V 1 iv ANALOGUE1 ov ANALOGUE Ow 12 Analogue mode voltage i i 4 20mA or 0 20mA Instrument ao 7 Analogue 12V POWER O P instrument E 10V 1 iv ANALOGUE1 4 20mA 0 20mA output ov ANALOGUE tym 12 Analogue mode current Ho H BATT 14 5V ov E D C lt 16V 2 1 3 4 Power Inputs 12V Battery 12V The LANDMARKA transmitter is 12VDC powered and can be configured for battery backup It requires a DC input and this provides a trickle charge for the batteries Connection is via the large four way terminal plug Fuse should be 2A slow blow J373 Landmarka UserManual 1 02 doc 2 1 4 Calibration Calibration in the field is extremely simple and can be achieved using a small screwdriver and a current or voltage source The method ts 1 Configure the correct analogue channel to be current or voltage using the configuration switches 2 Connect a current or voltage source to the analogue input terminals 3 Adjus
27. ument Administrator responsible for setting the parameters of the instrument They will need to define the configuration which best suits their monitoring tasks and maintain any record keeping IMPORTANT INSTALLATION WARNING Power must NOT be applied UNTIL the antennae have been fully installed Failure to comply with this instruction may result in permanent damage which is outside the terms of our warranty Antennae their feeder cables and connectors are crucial components for optimum performance of radio systems At no time should the inside of cables or connectors get wet and good working practice should be applied throughout installation J373 Landmarka UserManual 1 02 doc Signal in gt Signal in Transmitter Landmarka Signal Cable Elimination This manual provides necessary instructions for successfully installing and operating the Landmarka low power radio telemetry system 1 0 System function The purpose of the system is to eliminate the need for cables between monitoring instruments and junction boxes or control rooms It is effective over ranges up to about 10km The system can also be used as an alternative to signal cable in awkward applications such as rotating machinery or difficult situations such as crossing roads or railways The best way to visualise the system is to think of it as a piece of cable the signal that goes in one end comes out of the other Signal out a Signal out
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