ATLplus, the exceptional DCC system from UMELEC 
Engine module

Engine module Block module More Information Latest News Ordering German
Operation Modes Signal mode Remote control Shuttle operation Speed control Sound Functions

The quite impressive list of functions

Here you find all the features of the ATLplus engine module, many of them exceeding the NMRA frame. New features of the ATL2066 are marked yellow:

Individual control of each loco, up to 127 addresses (3-Byte resp. short address), up to 10'239 addresses (4-Byte resp. long address)

All programming work can be done without opening the engines
Direct CV programming of bits and bytes, fast reading, alternatively older page or register programming
Programming on the main (PoM) for all CVs besides CV1, allows e.g.  easier adjustment of brake distance
Programming on the main for single bits, allows easier control of program switches
Blocking of PoM possible (even via PoM!), avoids erraneous change of important parameters during operation
Reset of important CVs to default values at input of "8" to CV8
Extended consist control during normal operation, writable and erasable CV19 by special commands
At any time selection between signal and telecontrolled mode with a predefined button
Two telecontrol modes possible, by speed steps (standard) or attractive ++control
One fixed and one programmable curve in speed step modes (14 or 28)
Automatic switch to 128 step mode as soon as central unit sends such commands
Separately programmable top speeds for signal and remote controlled mode, two speed ranges defined in CV5 and CV6
Extended adjust range for these top speeds in CV5 and CV6
Selection of speed of  CV6 (shunting speed) switches off acceleration and brake momentum
Individually programmable acceleration and braking rates, separately for signal and telecontrolled mode
Simple programming of these values with individual CVs and large ranges
Up to 3.3 min acceleration or brake phase, but also immediate speed adjustment possible
Second programmable speed in signal mode for reduced speed areas (no external equipment needed!)
Signal controlled operation with very simple wiring, no short circuits at track isolations, symmetrical behaviour and low costs
Alternate braking methods by DC voltage (as Digitrax) or brake generators (as Digitalplus), but not recommended
Exact braking distances in signal mode programmable for each engine
Optional braking in two steps: first down to reduced speed, then down to stop in front of signal by polarity change (no PC needed!)
At two step braking also stop of train by a magnet in front of signal (polarity independent)
Programmable departure delay after signal change (simulates driver reaction time)
Fully working remote control, even in red signal area, for shunting
Very simple shuttle operation in signal mode, without PC, only module controlled (key function of ATL)
Direction change delay after stillstand to simulate cab change
Accurate speed regulation by EMP control, may be turned off (not recommended)
Fantastic course behaviour by linear accelerations and brakings in regulated mode
Instead of linear exponential brake curve, stronger braking at begin, then rolling out to the signal
Programmable motor pulse repetition rate, high frequency output for silent drive and Faulhaber motors
Automatic speed regulator adaption to motor characteristics
Further optimisation of regulation possible by parameter programming
Unregulated operation mode with motor adaptions possible
Up to four independent telecontrolled function outputs C, D, E, F (in addition to headlight outputs A and B)
Allocation of commander buttons F0 - F8 to outputs and functions (function mapping NMRA, extended)
Additional functions in the allocation matrix as main switch, alternative top speed and signal mode selection
Blink or flash function, programmable and allocatable to outputs A - D
Programmable dimming of light and funcion outputs A - D, alternatively gyro light effect
Individual time limitation up to 9 sec on outputs C and D (protection of electrical couplings)
Optional high beam function: at stillstand outputs A/B are dimmed, at departure they go to full brightness
Outputs C and/or D may switch on automatically at departure (for smoke generators, sep. high beam lamps, a.s.o.)
Integrated sound generation for steam and diesel, alternatively to individual function outputs E and F
Many improvments by new sound generation concept (but not real recordings)
Internally or externally triggered steam exhaust, triggering of external sound modules possible
Steam exhaust sound adaptable to 4 or 6 cylinder machines
Sporadic steam exhaust at continuous stillstand (overpressure valve), adjustable
May be switched to speed dependent diesel sound
Optionally load dependent volume control of steam or diesel sound
Optionally steam exhaust at departure to simulate blow off of cylinders
Steam/Diesel sound is heard during whistle/horn
Steam/Diesel sound may be switched off by telecontrol
Integrated train whistle or horn, telecontrolled by predefined button
Whistle may be triggered locally by a reed contact
Adjustable length of whistle period, may be extended by keeping the button pressed
Continuous suppression of steam/diesel sound for electric engines (only whistle)
Main switch to turn off motor, lights and sound, free allocation of button
Automatic detection of supply voltage: Digital, DC or AC, braking  with AC or DC, if not opened for
Module keeps last informations stored at power interrupt.

Actually there are three types of ATLplus engine modules.

ATL2064 the well proven module with EMP speed control. A simple sound generator is included, but not supported any more. Use only ATL2066 for sound. The last SW version is 12 (see CV7). Dimensions ca. 24 x 10 x 4.5 mm. Current max. 1,5 A.

ATL2066 ist the successor of the ATL2064, with new features and improved sound. Dimensions ca. 24 x 10 x 4 mm. Loudspeakers are separately offered as sets with loudspeaker, capacitor, plastic cap and two wires. There are unmounted and mounted versions (see pricelist), with 15, 20 or 30 mm diameter. The use of other 8-Ohm-loudspeakers is possible. Always use a capacitor in series, recommended value 100uF / 6V.

ATL2066p is functionally identical to the ATL2066, but delivers up to 3 A. So it is for two-motor H0 and all bigger gauges. Dimensions ca. 37 x 10 x 5 mm. They are delivered with a thermoconductive foil to be mounted on a cooling surface (e.g. loco chassis). Optionally the module may be ordered mounted on a cooler.

Engines with AC motors (electrical field coil) must be converted to DC, using a permanent magnet or installing a complete DC motor. The ATL2051 with infrared light barrier for AC motors are not offered any more.