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 Chapter Five

Specifications

man_905_2.0.doc

Page 

45

Chapter Five

SPECIFICATIONS

General

EMC approval

EN55022 (CISPR 22)

- CLASS B

EN 50082-1

I-ETS 300 683

AS 3548

89/336/EEC

Radio standards – 105U

MPT 1329 UK

I-ETS-300-220

AS 4268.2 AUST

RFS29 NZ

458 MHz, 500 mW EIRP

430 - 450 Mhz, 10 - 500 mW

472 MHz, 100 mW EIRP

458 MHz, 500 mW EIRP

Radio standards – 905U

FCC Part 15.247

902 – 928 MHz, 1W

Housing

130 x 185 x 60mm

DIN rail mount

Powder-coated, extruded aluminium

Terminal blocks

Removable

Suitable for 2.5 mm

2

 conductors

LED indication

Power supply,

OK operation, digital I/O,
RX and TX

Operating Temperature

-20 to 60 degrees C

Power Supply

Battery supply

11.3 - 15.0 VDC

AC supply

12 - 24 VAC,  50/60 Hz

Overvoltage  protected

DC supply

15 - 30 VDC

Overvoltage and reverse voltage
protected

Mains supply

110-250 VAC

via plug-pack transformer

Battery Charging circuit

Included

for 1.2-12 ahr sealed lead acid
battery

Solar regulator

Included

Direct connection of solar panel (up
to 30W) and solar battery (100 Ahr)

Current Drain

70 mA quiescent for ‘U’

45 mA quiescent for ‘S’

+ 10 mA/active digital input

+ 25 mA/active digital output

+ 2 x analogue I/O loop (mA)

Analogue loop supply

Included

24V DC 150 mA

Mains fail status

Monitored

Can be transmitted to remote
modules

Battery voltage

Monitored

As above

Radio Transceiver (105U)

Summary of Contents for 105S-1

Page 1: ...le for your telemetry needs We trust it will give you many years of valuable service ATTENTION Incorrect termination of supply wires may cause internal damage and will void warranty To ensure your 905...

Page 2: ...ease contact ELPRO Technologies for end user antenna and connector recommendations Notices Safety Exposure to RF energy is an important safety consideration The FCC has adopted a safety standard for h...

Page 3: ...requency regulatory authority in your country on a non protection basis Although all care is taken in the design of these units there is no responsibility taken for sources of external interference Th...

Page 4: ...ed 1 and Error Bookmark not defined 3 20 2 4 6 Pulse Input Error Bookmark not defined 1 20 2 4 7 Pulse Inputs Error Bookmark not defined 2 20 2 4 8 Pulse Output Error Bookmark not defined 1 21 2 4 9 P...

Page 5: ...IFICATIONS 45 CHAPTER SIX TROUBLESHOOTING 49 6 1 DIAGNOSTICS CHART 49 6 2 SELF TEST FUNCTIONS 49 6 2 1 Input to Output Reflection 105 1 only 49 6 2 2 Radio Testing using Tone Reversals 50 6 2 3 Diagno...

Page 6: ...tatus and low battery status The unit will monitor the input signals and transmit the signal information by radio or RS485 twisted pair to another 905 module At the remote unit the signals will be rep...

Page 7: ...al S RS232 RS485 serial only M MAP27 trunked radio interface and x is 1 Input Output module 2 Input module includes one output 3 Output module C Interface module 905U 1 105S 1 905U 2 105S 2 905U 3 105...

Page 8: ...with the correct receiving address will acknowledge the message with a return transmission If the original module does not receive a correct acknowledgement to a transmission it will retry up to five...

Page 9: ...er information is detailed below Each 905 module should be effectively earthed via a GND terminal on the 905 module this is to ensure that the surge protection circuits inside the 905 module are effec...

Page 10: ...g tape such as 3M 23 tape and finally with another layer of PVC UV Stabilised insulating tape The first layer of tape allows the joint to be easily inspected when trouble shooting as the vulcanising s...

Page 11: ...in other directions Hence Yagi aerials should be installed with the central beam horizontal and must be pointed exactly in the direction of transmission to benefit from the gain of the aerial Also not...

Page 12: ...an one remote site or at a repeater site The collinear aerial looks similar to the dipole except that it is longer 2 3 Power Supply The 905 power supply is a switch mode design which will accept eithe...

Page 13: ...ry supply is connected to BAT and GND terminals The positive lead of the external supply should be protected by a 2A fuse Upon failure of the normal supply the 905 module may continue to operate for s...

Page 14: ...1 x No of DI s 0 025 x No of DO s 2 x Analogue loop load The analogue loop load is the total signal current for the AI s and AO s which are powered from the internal 24V supply Externally powered loop...

Page 15: ...3 analogue inputs 6 digital inputs and 4 digital outputs The total load will be TYPE OF LOAD LOAD mA 905U 01 quiescent 70 105S 01 quiescent 45 6 DI 10 mA 60 3 AI 20mA x 2 120 4 DO 25mA 100 Battery cha...

Page 16: ...e is less than 200 ohms the device will be able to activate the digital input For pulse inputs refer to Section 2 4 6 2 4 2 Digital Outputs 905 1 The 905 1 module provides four normally open voltage f...

Page 17: ...ach output so that a communications failure at a transmitting site causes the output to revert to a known state See section 4 4 Changing User Options for further details The output circuit is connecte...

Page 18: ...digital output circuit includes a LED indicator which is lit when the digital output is active 2 4 4 Analogue Inputs 905 1 and 905 2 The 905 1 module provides two 4 20 mA DC analogue inputs for connec...

Page 19: ...istance 1000 ohms In this case the analogue loop is connected between a 24V terminal and AO 1 for the first analogue output or AO 2 for the second analogue output and so on for the other output signal...

Page 20: ...e output PO This output accurately recreates the pulses counted at a pulse input at a 905 1 or 905 2 module Although the count is accurately re created the rate of output pulses may not accurately ref...

Page 21: ...Out Transmit Data Serial Data Input High 0 Low 1 3 TD In Receive Data Serial Data Output High 0 Low 1 4 DTR In Data Terminal Ready not used 5 SG Signal Ground 6 DSR Out Data Set Ready not used 7 RTS...

Page 22: ...n_905_2 0 doc Page 23 The RS485 Communications format is 9600 baud 8 data bits one stop bit no parity Note that the RS485 port is shared internally with the RS232 port disconnect the RS232 cable after...

Page 23: ...ntial standard but it is recommended that shielded twisted pair cable be used to interconnect modules to reduce potential Radio Frequency Interference RFI An RS485 network should be wired as indicated...

Page 24: ...e 905 module monitors the power supply and provides status of supply failure and battery low voltage for mapping to one of the module s own outputs or transmitting to a remote output When the 905 modu...

Page 25: ...radio RX LED flashes if RS485 Receive message RX LED flashes Check message for integrity RX LED flashes Acknowledgement received okay communication complete If message okay transmit it back as acknow...

Page 26: ...ounce In addition to change of state transmissions each module will transmit the status of each input to its corresponding output every ten minutes configurable These updates mean that the outputs are...

Page 27: ...e input counts are transmitted at set intervals The default period is 1 minute and is configurable Note that the pulse outputs are re created from the accumulated pulse count If a transmission is miss...

Page 28: ...outputs is 100Hz Input Pulses Time Output Pulses PI update time PO update time Time As well as accumulating the pulse input the 905 module will also calculate the rate of pulses Pulse rates are treate...

Page 29: ...will not reset the output That is once communications is re established and the CF status is reset the output will stay on The Reset Output feature see below is used to reset the output The output wil...

Page 30: ...ssion rate of greater than 50 per minute this will give a peak rate of approx 100 per minute Note that this peak rate assumes that all radio paths are reliable poor radio paths will require re try tra...

Page 31: ...consider system failure I O systems operating on a wire link will fail eventually and a radio system is the same Failures could be short term interference on the radio channel or power supply failure...

Page 32: ...one or more outputs anywhere in the system The unit address determines the method of communication to a module Any module with a unit address between 96 and 127 will communicate by RS485 only Other un...

Page 33: ...figuration Using Default Settings If your application requires only a single pair of 905 modules communicating via radio or serial link default settings may satisfy your needs If so no configuration i...

Page 34: ...Update transmissions Every 10 minutes Analogue Change of state sensitivity 3 Reset outputs on Comms fail No Analogue Setpoints if mapped Low Set point 30 High Set point 75 Pulse Output Rate Scaling if...

Page 35: ...be downloaded for display and modification Configuration files can be saved to disk for later retrieval Configuration of 905 modules consists of entering I O mappings and selecting User Options An I...

Page 36: ...PY A EXE CFG105 Hints for Windows Users For slower machines the software should be run in Full Screen and Exclusive mode under Windows If problems are experienced exit windows and run the program from...

Page 37: ...em address and unit address simply move to the appropriate box using the TAB key or the ALT letter keys or mouse click and type in a new number or use the arrow keys to edit the old number Entering a...

Page 38: ...entry of the desired mapping Depending on the type of unit being configured 905 1 905 2 or 905 3 the dialogue box will vary The following is the display for configuration of Input Output mappings on...

Page 39: ...ls When a unit is first turned on its outputs will not be set until it receives update messages from any other units in the system which have inputs configured to appear at those outputs To ensure tha...

Page 40: ...comms fail should be indicated Saving and Loading Configurations to from Disk It is strongly recommended that the configuration for each unit in the system is saved to a backup file In the unlikely e...

Page 41: ...signals which vary widely over a short period of time or have a normal oscillation the analogue sensitivity should be set to an appropriately large value This ensures that many change messages are no...

Page 42: ...ogue output On the 905 1 the maximum value is 100 Hz On the 105 2 the maximum value is 1000 Hz for input 1 and 100 Hz for inputs 2 4 Pulse input 1 on the 905 2 module can measure pulse signals up to 1...

Page 43: ...ding existing Configuration from the 905 To download the configuration from a 905 for editing or simply for checking follow the following steps Connect the cable from the PC s serial port to the 905 s...

Page 44: ...on digital I O RX and TX Operating Temperature 20 to 60 degrees C Power Supply Battery supply 11 3 15 0 VDC AC supply 12 24 VAC 50 60 Hz Overvoltage protected DC supply 15 30 VDC Overvoltage and rever...

Page 45: ...2 928 Mhz 250 kHz channel spacing Transmit power Adjustable 100 mW 1 W Spurious emissions RX 57 dBm TX 37 dBm Frequency Stability 10 kHz Receiver Sensitivity 0 4uV at 12dB SINAD Signal detect RSSI 120...

Page 46: ...s 1000Hz min off time 0 5msec Max rate of DI2 4 is 100Hz min off time 5msec Pulse Output 105 1 One 105 2 None 105 3 Four FET output 30 VDC 500mA max Max rate for 105 1 is100 Hz Max rate for 105 3 is 1...

Page 47: ...s via radio or RS485 or network of both Up to 95 radio units with up to 32 serial units off each radio unit Mapping Any input to any output in system User Configuration Via on board DIP switches or RS...

Page 48: ...ove When the OK LED extinguishes shutdown state is indicated In this state all digital outputs turn OFF and the 24V supply turns off On processor failure or on failure during start up diagnostics the...

Page 49: ...th between two units see below received signal strength indication The tone reversals function is initiated by setting all of the DIL switches to ON and holding down the red button for approximately 5...

Page 50: ...Modules 1234MLS P CNT AI1 AI2 P RATE VBATT 0101001 00F6 C000 4000 8000 9C00 The first 7 values 1234MLS each represent a single digital input A 1 indicates that that input is ON and a 0 indicates that...

Page 51: ...xt position Rightmost position 0 0 000 0 000 0 000 1 0 125 0 008 0 000 2 0 000 0 250 0 016 0 001 3 2 000 0 375 0 023 0 001 4 4 000 0 500 0 031 0 002 5 6 000 0 625 0 039 0 002 6 8 000 0 750 0 047 0 003...

Page 52: ...e been corrupted are displayed with a in the first column of the display The first four hexadecimal digits are the system address attached to the message and must match for units to communicate succes...

Page 53: ...ith an Enter button located to the right of the pair the display indicates the current switch settings with the digit 1 corresponding to On and the digit O corresponding to Off Changing the switch set...

Page 54: ...conditions a reading of 0 indicates a very marginal communication path For reliable communications the signal reading should be 3 or above k Minimum signal level for reliable comms Signal 0123456789...

Page 55: ...re available from your Service Agent your source of purchase or from the master distributor in your country upon request and should be noted if you are in any doubt about the operating environment for...

Page 56: ...y buildings and trees A control station is located near the pump station and there is an existing signal cable between the control station and the pump station A 105U 1 module is installed at the pump...

Page 57: ...ere was no existing electrical panel at this station a small steel enclosure was installed on the light pole A 2 Amp Hour sealed battery was installed to provide power during any mains failure The flo...

Page 58: ...105U 2 The system address is 10587 a random selection and unit address is 2 PIN1 the flow meter is mapped to Out3 D P output 3 at 96 which is the control station 1 is a repeater The pulse rate for th...

Page 59: ...and 75 When the tank level drops to 40 DO2 at the pump station will activate to start the pump When the level rises above 75 DO2 will reset to stop the pump The update time for SETPT1 has been change...

Page 60: ...al link to 96 AIN1 pump amps is mapped to Out3 at 97 AO3 at control station An additional mapping has been entered LOW VOLT has been mapped to Out8 at 96 DO8 at the control station This mapping is for...

Page 61: ...87 same as before and unit address is 96 As the module is a 105 3 module it will automatically assume addresses 96 and 97 The only mappings are Start up polls Note that there are two separate polls on...

Page 62: ...as a system OK signal It was normally active if the signal reset then this represented a system failure At the tank station there is no signal wired to DI4 By mapping NOT DI4 to DO4 at the control sta...

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