A micro-processor based system to allow acquisition, manipulation, logging and transmission of data. Flexible, high level language real-time software, capable of remote maintenance, provides control of communications and decision functions, which in turn drives digital or mains borne signal switched appliances and controllers.
| Type | Details |
|---|---|
| 8 Digital Inputs | 5V TTL compatible |
| 14 Analog Inputs | 0.5V - 1.5V, 1V - 3V, 2.5V - 7.5V , 5V - 15V
ranges individually selectable by software |
| 4 Pulse Counter Inputs | 5V pull-up TTL compatible, 0 - 1.5KHz |
| Type | Details |
|---|---|
| 8 Digital Outputs (optional 64) | Open collector 0 - 30V at 200 mA max. per output |
| Mains Borne Signalling | 256 switchable items rated at 13A, using X10 |
| Type | Details |
|---|---|
| Analog/Digital converter | 10 bit / 1024steps, 0 - 10V with 10mV resolution |
| Digital Accumulator | With Locus computer interrupt 5V pull-up TTL compatible |
| Datalog Memories: | With internal battery backup |
| Standard 32Kbyte total SRAM | 8K software, 24K for datalog |
| Expandable to 256K total SRAM | 8K software, 24K for datalog |
| Real-time clock | Time and Date,Internal battery backup |
| External power supplies | |
| 5V DC | Precision regulated 0 - 100mA |
| 12V DC | Unregulated 0 - 100mA |
| External Communications | |
| 2 Serial ports | for PC, Modem or further linked Locus Systems |
| Type | Details |
|---|---|
| Power | 12VDC @ 115mA typical< 1.5W, remote application |
| or 220/240V AC (with onboard adapter) | |
| Operating temperature | -36C to 70C |
| Wall mounting | Housings supplied according to environmental requirements |
| Telephone line | For modem comms giving remote download/upload capacity |
The technology of mains borne signalling is well established with a plethora of sensors and a switching devices available. What it means in essense is that using existing mains cabling in a building, it is possible to control appliances on/off status from a central location. The application of this has often been directed at enthusiastic DIY homeowners. However at AEC we have found that the tool can be enormously useful where distributed electrical heating and lighting is locally controlled. A fine example is where a Hotel or Motel has a central room booking system, and cleaning staff are asked to ensure that heating and lighting appliances are left off in vacated rooms. Using our LOCUS SYSTEM intergrated to a hotel switchboard it is possible to perform this function manually from reception, else even automatically from the room booking system. In student accomodation at The University of Kent, driving heat appliance availability from a probe measuring ambient temperature, very significant savings have been acheived.
Naturally the other possible applications are limitless, be it the control of space heating, de-stratifiers or security applications using movement sensors. The LOCUS SYSTEM has proven very robust and flexible in such applications and it can control 256 appliances centrally with optional daisychaining of further devices expanding the capacity. Together with remote communications / software download / datalogging and status reporting the LOCUS SYSTEM together with X10 appliances provides an enormously powerful tool.
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