BL118 RADIOMETRIX | Alldatasheet
Document overview
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- PDF pages: 7
Technical content
Features
/square4 8 bit address select switch /square4 A relay to control mains powered devices rated up to 8A, 240VAC /square4 Visual LED indication of communication status and relay state /square4 Useful for RF module range testing /square4 Logic or Switch input for momentary control of relay /square4 Very low (1mA) average current. 2 years operating life from D cells /square4 Simple “plug-and-play” setup. No complex programmin g needed
Applications
/square4 Security and Alarm systems /square4 Emergency assistance call system /square4 Status reporting and monitoring systems /square4 RF Remote control systems /square4 Industrial controls /square4 HVAC controls /square4 Simple On/Off switching /square4 Long range telecontrol with Narrow Band FM radios Kit Contents The BL118 Application kit is supplied with the following contents:
1 BL118 Encoder/Decoder Master board
1 BL118 Encoder/Decoder Slave board
2 Radiometrix Transceiver module (ordered separately)
2 1/4-wavelength monopole or helical antennas Additional requirement /square4 External power supply (12V and 5V version available) These simple application boards use firmware based on the BD118 remote control systems to implement a bi- directional control link. A system consists of a master board (which initiates communi cation burst cycles) and a slave (which responds to them). In hardware terms these boards are the same, but have different firmware loaded. Figure 1: BL118 application boards Bi-directional low power RF Remote Control boards Issue 1, 05 November 2012 Hartcran House, 231 Kenton Lane, Harrow, Middlesex, HA3 8RP, England Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233, www.radiometrix.com BL118 App. boards
Radiometrix Ltd BL118 App boards page 2 BL118 and it's variants The term "BL118" actually refers to two different things: a 28 pin PIC programmed with bidirectional control code, and an applications board (equipped with a BIM radio, and a relay) that the BL118 chip can be used on. (There is actually nothing to prevent completely different firmware that complies with the pin allocations being used on the BL118 board) Common features and characteristics of the BL118 boards Interfaces Output 8A 240v rated SPDT "change over" relay (5v or 12v coils to order) (or an open collector switch in it's place) 3.81mm pitch 3 way 2 part "Phoenix" type terminal 4 pin ancillary connector (+5v, aux1, aux2, gnd) Input Active low logic input (3.81mm pitch 2 way 2 part "Phoenix" type terminal): Pull-up to 5V, and protection diodes provided, Compatible with N/O volt-free closing contact SETUP jumpers (two) Address DIP switch (8 way) Power 12V and 5V versions available (3.81mm pitch 2 way 2 part "Phoenix" type terminal) 40mA peak (plus relay coil current if activated) 1mA average current (relay off, using 10mW BiM1-173 radio) RF SMA or MCX (or optional terminal block) Indicators Comms status LEDs (2 off, red) Relay state LED (red) BL118 control chip 28 pin PIC (16F883 or equivalent) Clock 10MHz (ceramic resonator) Timer 1 . 32.768MHz crystal Data rate 3.6kbps Biphase coded burst Addressing User programmable 8bit address (DIP switch) Response time 2s Extreme current saving measures Switchable pullups on DIP switch Very low lq 5V LDO regulator (HT7550) Size 76 x 63 x 16mm (excluding connectors) (four 3.3mm diameter mounting holes are provided) Operating temperature -20 to +70 degrees centigrade (some radios may be limited to -10/+55) (Storage -30 to +70 degrees) Radio modules BiM pinout transceiver (NiM2, BiM1) Not compatible with RDL2 or high power BiM3H or Bi M1H ( BiM2 and BiM3 compatibility TBA )
Radiometrix Ltd BL118 App boards page 3 LED Indications The "blinking lights" on a BL118 look similar to a BD118, but the functions are actually very different (we cannot leave an LED constantly "on", or it's 2mA current drain will dominate the unit power consumption) Master LEDs D1 Relay Activated D2 Regular Blink – In Lock Regular Blink – Loss of communication link D3 Short Blink – In Lock OFF - Loss of communicatio n link Slave LEDs A slave which has never achieved lock idles with all LEDs OFF D1 Relay Activated D2 OFF – In Lock ON – Loss of communication link D3 Regular Blink – In Lock OFF - Loss of communicat ion link The BL118 CPU All current BL118 systems (so far) share the same data burst structure and coding scheme. The bit coding is simple biphase, at approx 3600 bits per second. The burst is a 36mS long frame, incorporating 10mS of preamble, a framing /sync sequence, an 8 bit address, an 8 bit data word and a checksum. To date no BL118 uses any more than 1 bit of the data word, although in principle the whole word can be used, and it would not be difficult to add extra words to the burst (at the cost of a longer burst) In the basic master/slave BL118 these bursts are used within a 2 second frame. Each frame begins with the master sending a burst, to which the slave replies. The timing permits 40mS for each transmission, and up to 50mS "listen" time on receive (these timings allow a good deal of timing slack). Throughout the rest of the frame the hardware goes into sleep mode and draws no more than 10uA. With a 10mW BiM1 VHF module this results in an average current consumption (relays off) of just under 1mA (a battery of 6 D cells will drive such a unit for over two years). The developed BL118 "multi-master" is a code version whereby a single master polls (up to) 16 slaves, by cycling through the lower 4 bits of the address word (each slave has a unique 4 bit "ID" set on the lower 4 bits of the address DIP switch. The upper 4 bits still constitute a "global" address). Each poll operation consists of a master transmission followed by a slave reply (as in the standard BL118) and all 16 such operations occupy 1.44s of the 2 second frame. Slave unit current consumption is unchanged, but the multi- master is understandably more hungry (around 16mA average for a unit fitted with a BiM1 VHF radio) All slave outputs are commoned to the master input, while the master relay output is the "or" function of all the slave inputs. In addition, the master will re-transmit an "activate" command in the frame following one where any slave input was seen to be active (in this way it functions as a sort of system repeater) In addition, once every frame the master outputs (via the JP7 auxiliary I/O pins) a stream of RS232 bytes (at 9600 baud) that report the input states of all the slaves (as received) and the presence or absence in system of each slave.
Radiometrix Ltd BL118 App boards page 4 Figure 2: BL118 Board Component Layout
Radiometrix Ltd BL118 App boards page 5 Figure 3: BL118 Schematics
Radiometrix Ltd BL118 App boards page 6
Ordering Information
Part No. Version Frequency (MHz) BL118-173.225-BiM1-M Master control board 173.225 BL118-173.225-BiM1-MM Multi-Master control board 17 3.225 BL118-173.225-BiM1-S Slave control board 173.225 Other frequency variants can be supplied if required. BL118-434.650-NiM2-M Master control board 434.650 BL118-434.650-NiM2-MM Multi-Master control board 43 4.650 BL118-434.650-NIM2-S Slave control board 434.650 Other frequency variants can be supplied if required. Note : For details relating to the radio module fitted on board, see relevant data sheet http://www.radiometrix.com/files/additional/nim2.pdf http://www.radiometrix.com/files/additional/bim1h.pdf
231 Kenton Lane
Harrow, Middlesex HA3 8RP ENGLAND Tel: +44 (0) 20 8909 9595 Fax: +44 (0) 20 8909 2233 sales@radiometrix.com www.radiometrix.com Copyright notice This product data sheet is the original work and co pyrighted property of Radiometrix Ltd. Reproduction in whole or in part must give clear acknowledgement to the copyright owner. Limitation of liability The information furnished by Radiometrix Ltd is believed to be accurate and reliable. Radiometrix Ltd reserves the right to make changes or improvements in the design, specification or manufacture of its subassembly products without notice. Radiometri x Ltd does not assume any liability arising from the application or use of any product or circuit de scribed herein, nor for any infringements of patent s or other rights of third parties which may result f rom the use of its products. This data sheet neithe r states nor implies warranty of any kind, including fitness for any particular application. These radio devices may be subject to radio interference and ma y not function as intended if interference is present. We do NOT recommend their use for life critical applications. The Intrastat commodity code for all our modules is: 8542 6000 R&TTE Directive After 7 April 2001 the manufacturer can only place finished product on the market under the provisions of the R&TTE Directive. Equipment within the scope of the R&TTE Directive may demonstrate compliance to the essential requirement s specified in Article 3 of the Directive, as appropriate to the particular equipment. Further details are available on The Office of Communications (Ofcom) web site: http://www.ofcom.org.uk/radiocomms/ifi/ Information Requests Ofcom Riverside House 2a Southwark Bridge Road London SE1 9HA Tel: +44 (0)20 7981 3000 Fax: +44 (0)20 7981 3333 information.requests@ofcom.org.uk European Radiocommunications Office (ERO) Peblingehus Nansensgade 19 DK 1366 Copenhagen Tel. +45 33896300 Fax +45 33896330 ero@ero.dk www.ero.dk