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Elk Magic Module Programmable Controller
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Elk Magic Module Programmable Controller

Elk Part Number: ELK-MM443
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Product Description
The Magic Module (ELK-MM443) is new a four analog or digital input, four relay output programmable logic controller (PLC). It is desigend to be used either as a stand alone field programmable controller in a large variety of applications from timers, door controllers, simple process controllers, multiple zone security controls, etc. or as a networked controller with anywhere up to a maximum 31 other modules connected on a common RS-485 data bus.

The Magic Module is designed to support transmitting and receiving commands from two way X-10 Power Line Carrier Mechanisms. Also available are optional interfaces for reading Temperature, Clock/Calendar, Wiegand Proximity units, and Dallas iButton identification devices.

The Magic Module is designed to be programmed by a personal computer. All programs are stored in a re-programmable Electrically Erasable Programmable Read Only Memory (EEProm memory). Also available are the ELK Starter Kit (ELK-MK400) or Programming Kit (ELK-MK485), which contain certain components and software required to program the Magic Module.

Also available is the ELK-MM220, a lower priced version having 2 digital input, 2 relay output programmable controller.


  • Uses Four analog or digital inputs
  • Four relay outputs (2 relay outputs may be jumper programmed for transistor open collector outputs)
  • Has 16,384 bytes of program storage space using SIMPLE programming language
  • 4 multiple purpose Counters, ranging from 0 to 255 counts
  • 4 multiple purpose Timers, ranging from 1/10 second to over 255 hours
  • Can be networked to optional PC and up to 31 other ELK-MM443s through a RS-485 data bus.
  • X-10 Power Line Carrier Interface. PL513, PSC04 (Transmit Only), or TW523, PSC05 (Two Way).
  • Analog transmission MM443 to MM443 and Preset Dim Commands.
  • Equipped with Dallas iButton TouchKey Reader having optional ELK-MA100 or ELK-MA290 interface
  • Can Easily Program the ELK-MM220 (two inputs, two relay outputs)
  • Emulates ELK-MM220 for code development
  • Programs are stored in a non-volatile EEProm memory
  • Can be Installed on a single or double gang electrical box.
  • Supports Optional DIN Rail Mounting. PCB mounts into 4 inch SnapTrack.
  • Comes With a Lifetime Limited Warranty.


  • Inputs: 4 Analog, 0 to 13.6 volts, with jumper programmable 2k pull up resistor to 12 V, or 2k pull down resistor to ground. May be left floating. Software programmable high and low threshold levels per input for end-of-line resistor circuits. Input impedance (floating input) - 100K ohms
  • Outputs: 4 Form "C" Relays, 10 Amps @ 120VAC or 7 Amps @ 28VDC; Two relay outputs may be configured as open collector transistor outputs - 100 ma. Max.
  • Operating Voltage: 9.5-15 Volts DC
  • Current Draw: 10 ma. Nominal, 130 ma. Maximum with all relays active.
  • X-10 Interface: PL513, PSC04 or TW523, PSC05 - 4 wire RJ-11 telephone style
  • Data Bus: RS-485, max bus length: 4000 feet w/22 AWG wire
  • Enclosure: White Plastic: 6.5" W x 4.375"H x 2"D

View the ELK-MM443 Instruction Manual in Adobe Acrobat format (right-click to save document to your hard drive)
Magic Module is a trademark of ELK Products, Inc.
X10 is a trademark of X-10 USA.
iButton is a trademark of Dallas Semiconductor

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