Duemmegi Contatto ModLC-WM User manual

Contatto
ModLC-WM / ModLC-WM-P
ModLC-WM / WM-P: ambient light regulator
module with integrated sensors for Bright-
ness and Presence (-P version)
ModLC-WM module allows to transmit, over the Contatto
bus, the ambient brightness value detected by the sensor
integrated inside the module itself. This module provides a
P D algorithm for the automatic regulation of the ambient
brightness and some SMART modes, thus allowing to con-
siderably simplify the programming of the MCP controller
when realizing these kinds of applications. ModLC-WM-P
also features a built-in presence sensor.
ModLC-WM module can thus be well applied in the bright-
ness regulation of offices, stores and open spaces, allow-
ing to develop applications complying with the new
European norms about the energetic classification of the
plants (European Norm EN 15232).
ModLC-WM module is suitable for wall mounting; the sen-
sor detects the light reflected by the surface under it (for
instance the floor or a desk). The special integrated sensor
has the same spectral sensitivity of the human eye.
The module features a 7-way removable terminal block for
the connection to the Contatto bus and, if required, to
presence sensors (e.g. DUEMMEGI SRP) that must works
in parallel connection with internal sensor (if -P version).
ModLC-WM module, for its operations, can work only in
systems equipped with MCP XT or MCP 4. The housing is
plastic material with P20 protection degree.
Note: this technical sheet applies to ModLC-WM and ModLC-
WM-P equipped with FW 2.5 or higher.
ddress programming
ModLC-WM module takes one input address and, if en-
abled, one output address with the same value; the ad-
dress has to be assigned by the FXPRO programmer
through the proper programming cable inserted in the con-
nector placed inside the module.
Wiring diagram
The following schematic diagram shows the connections to
the Contatto bus.
The input ( N) may be used for the connection to one or
more presence sensors that, for -P version, will work in par-
allel connection with the internal sensor; the contacts of
these sensors, which must be potential free, must be con-
nected between the terminals +COM and N.
Anyway, take in account that terminal 1 is a 24V voltage
output to supply the external contact, which, as said before,
must be potential free. The terminal 2 is the digital input of
the module and can be also activated by a continuous posi-
tive voltage, referred to 0V, inside the range 10 to 30V.
Connection to the contact of a presence sensor:
13 14 15 16 17 1 2
+24V
BUS
0V
L1
L2
L2 L1
0V
+24V
+COM IN
f using a DUEMMEGI SRP presence sensor, refer to the
following schematic diagram.
13 14 15 16 17 1 2
+24V
BUS
0V
L1
L2
L2 L1
0V
+24V
+COM
IN
1 2 3 4 5
+24V
0V
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Contatto
ModLC-WM / ModLC-WM-P
f more SRP presence detection modules are required, they
can be parallel connected.
Detection characteristic
The presence sensor (-P version), as said above, can de-
tect the movement in the range of 10 meters, in the perpen-
dicular direction in respect to the module surface.
When a person is moving, thanks to the detection of in-
frared radiation emitted by the body, the sensor will be able
to detect the movement.
For the calculation of the covered area refer to the following
formula:
D = L x 2.38
where D is the diameter of the cone basis and L is the dis-
tance from the sensor, as shown in the following figure.
D
L
Therefore the detection area (cone basis) increases when
the sensor is far (inside the limit of 10 meters about); take
this in account when positioning the module.
Installation hints
The correct positioning of the sensor plays a fundamental
role in the application of automatic light regulation. Even if it
is hard to give a general rule for the positioning of the sen-
sor, because each specific case could be evaluated, as ap-
proximated general rule the sensor could be installed on
the wall, at a height of 2.30 meters about, in a proper posi-
tion avoiding the direct incidence of external light entering
from windows or other openings.
This because, on the contrary, the direct light should be
predominant in respect to the reflected light that is, at the
end, the light to be regulated (because, generally, the pur-
pose is to make constant the illumination of the working
desks).
For instance, in the case of a room with two windows on
the same wall, the sensor may be placed on the same wall
between the two windows, with sensor toward the interior
of the room. Also, a “stable” surface must be “seen” by the
sensor: this surface must be at a constant distance from
the sensor and it must have always the same color (it may
be the floor or a desk or other). Take in account that the
sensor is oriented 45 degrees about in respect to the wall.
The height and position for proper installation must be how-
ever evaluated taking in account also the presence sensor
and the physical shape of the room. Given that the pres-
ence detection is based on the detection of infrared emis-
sions, it is good practice to take in account also the
following aspects related to the use and to the installation
of ModLC-WM-P module, in order to avoid errors in the de-
tection by the sensor itself.
Detection of heat sources other than a human body
The following cases show various situations where detec-
tion mistakes by the detection sensor may happen.
✗small animals entering in the detection range
✗infrared emissions from sunlight, incandescent light or
some other sources of far infrared rays
✗sudden change of the temperature due to the entry of
cold or warm air from an air-conditioning or heating
unit or water vapor from a humidifier
Bad conditions for the detection
✗the detection of movement by the sensor could be dis-
turbed by the presence of glasses objects, acrylic or
other materials that may shield the infrared rays
✗a heat source not moving or moving too quickly or
moving too slowly may be undetected by the sensor
✗the sensor is less sensible when the temperature of
the moving body is near to the ambient temperature
Other handling cautions
✗be careful to keep clean from dust or dirt accumulating
on the lens because this will adversely affects the de-
tection sensitivity
✗the lens is made by a soft material (polyethylene);
avoid applying a load or impact since this will deform
or scratch the lens
✗to cleaning the sensor avoid the use of fluids that may
enter inside the sensor causing a deterioration
To install ModLC-WM sensor, follow the steps here bottom
described.
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Contatto
ModLC-WM / ModLC-WM-P
Opening o the module
Find the two fissures where the small dull tooths of the rear
panel are housed (normally on the bottom side). nsert the
tip of a small screwdriver in one of these fissures so that
the rear panel releases towards the outside. Then insert
the screwdriver in the other fissure so to extract completely
the rear panel.
Address assignment
nsert the proper connector of FXPRO programmer in the
blue connector on the
rear side of the elec-
tronic card and assign
the base address fol-
lowing the normal pro-
cedure of all Contatto
modules.
Connection
Open the hole on the rear panel
helping yourself with a small pin-
cers or a pair of scissors. nsert
the wires (those of the bus and
eventually those of the input) in
the hole of the rear panel; fix the
rear panel to the wall, placing at-
tention to its orientation (see the
UP label on the rear panel itself).
Be sure that no voltage is present on the wires.
Connect the wires to the terminal blocks of the electronic
card according to schematic diagram.
Closing o the module
Place the top side of the cover on the rear panel fixed to
the wall, so that the two tooths on the top side of the rear
panel itself fit in the related
fissures and, at the same
time, the connector of the
electronic card fits into the
terminal block. At this
point, delicately push the
bottom side of the cover
towards the rear panel,
until the two dull tooths on
the rear panel fit in the re-
lated fissures of the cover.
utomatic regulation of the brightness
ModLC-WM module features a P D regulation algorithm
(Proportional ntegral Derivative). This allows to implement
a system for the automatic brightness regulation: fixed the
desired setpoint (1), ModLC-WM module will calculate au-
tonomously the optimal value which, sent to the dimmer of
the luminous source, will allow to reach and maintain that
setpoint.
Therefore this system for the automatic regulation will con-
stantly follow the assigned setpoint, thus compensating the
external environmental contributions like, for instance, the
increasing or decreasing of the light quantity coming from
the windows of the room being automatically regulated.
The speed at which the regulation system reaches the set-
point can be adjusted changing the regulation parameters
Ki and Ki Fine; increasing the value of Ki (2), the system will
reach the setpoint quickly.
t is also possible to define a range around the setpoint
(Zone Ki Fine) where the control change from the normal Ki
to the Ki Fine; in this way the speed will be reduced in or-
der to approaching to the setpoint with better precision,
avoiding as much as possible overshoots and oscillations.
Once the setpoint has been reached, the regulator will not
execute other operations during all the time the measured
value falls inside a range, called dead zone; this dead
zone, in addition to Ki and Ki Fine, can be defined during
the setting up.
ModLC-WM module also allows to define a ramp value to
be sent to the dimmer in order to avoid discontinuous light
changes, with a bad optical effect, when increasing or de-
creasing the brightness of the lamp.
(1): the setpoint is defined as the brightness value that the auto-
matic regulation system has like target to be reached and main-
tained.
(2): an excessive speeding up of the system may generate instabil-
ity events, also appearing as periodic switching on and off of the
light source.
For details about the meaning and the setting of the several
parameters available for the automatic regulation, refer to
the paragraph “Configuration of ModLC-WM module”.
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Contatto
ModLC-WM / ModLC-WM-P
SM RT mode
To realize a system of automatic regulation of ambient
light, with or without presence sensor, it is possible to use
ModLC-WM module in conjunction with proper program-
ming of MCP controller, according to the application re-
quirements.
ModLC-WM module, however, features the SMART mode
operation: in practice it is possible to choose among some
predefined modes of operation, which generally cover most
of real cases; therefore, it will be enough to select the de-
sired SMART mode, among the available options, and the
module will autonomously manage all the operation logic
and regulation, including the management of the local
pushbutton for manual adjustment, the presence sensor,
the automatic/manual switching and so on. n this way, the
programming of MCP will be reduced to “turn” the contents
of the input channel 2 input of ModLC-WM to the dimmer
module or to ModDAL module (in the case of systems with
DAL lighting).
ModLC-WM module can therefore work in traditional way
(that means absolutely equivalent to ModLC-WM with
firmware version lower than 2.0) or in SMART mode. The
predefined SMART modes will be described in the follow-
ing. n all cases, ModLC-WM will place on its input channel
2 a value or a command code to be sent to dimmer or to a
DAL group.
n the following description “One Touch” means a short
press of the local button (less than 400ms).
n all cases, adjustments and switchings can be performed
by a supervisor acting on the output points of CH4 or on
the value of output channel CH2 (see paragraph nforma-
tion on the bus).
Mode SMART 1
Arrangement for the typical zone:
•ModLC-WM module
•Presence sensor of ModLC-WM
•Local button connected to x.y; One touch on this button
toggles between AUTO and OFF
From FW version 2.1, an option for SMART1 has been
added, depending on the status 0 or 1 of point 6 channel 4
of output address (Ox:4.6).
Operation with Ox:4.6=0:
Starting with lights OFF, the AUTO brightness regulation
will be activated at the presence detection. One Touch
pressings on the local button will toggle the system be-
tween AUTO and OFF. Long pressings on the local button
will switch the system in MANUAL mode and activate the
mono-command (the light increases or decreases for all the
time the button is pressed). When the time delay related to
the presence sensor elapses, the system will be turned off
regardless of the condition in which it was (AUTO or MAN-
UAL).
Operation with Ox:4.6= :
Starting with lights OFF, nothing happens at the presence
detection, because the the turn ON in AUTO mode can oc-
cur only by One Touch pressing on the local button. Suc-
cessive One touch pressings will switch the system
between AUTO and OFF.
Long pressings on the local button will switch the system in
MANUAL mode and activate the mono-command (the light
increases or decreases for all the time the button is
pressed). When the time delay related to the presence sen-
sor elapses, the system will be turned off regardless of the
condition in which it was (AUTO or MANUAL).
Mode SMART 2
Arrangement for the typical zone:
•ModLC-WM module
•Presence sensor of ModLC-WM
•Local button connected to x.y; One touch on this button
switches the system to MANUAL mode and toggle the
light level between 0% and K% (K = 1 to 100)
Operation:
Starting with lights OFF, the AUTO brightness regulation
will be activated at the presence detection. One Touch
pressings on the local button will switch the system to
MANUAL and they will toggle the lights alternately between
0% and K% (K must be set during configuration of ModLC-
WM). Long pressings on the local button will switch the
system in MANUAL mode and activate the mono-command
(the light increases or decreases for all the time the button
is pressed). When the time delay related to the presence
sensor elapses, the system will be turned off regardless of
the condition in which it was (AUTO or MANUAL).
Mode SMART 3
Arrangement for the typical zone:
•ModLC-WM module
•Presence sensor of ModLC-WM
•Local button connected to x.y; One touch on this button
switches the system to MANUAL mode and toggle the
light level between 0% and last stored value
Operation:
Starting with lights OFF, the AUTO brightness regulation
will be activated at the presence detection. One Touch
pressings on the local button will switch the system to
MANUAL and they will toggle the lights alternately between
0% and the last value which has been stored after a manu-
al adjustment. Long pressings on the local button will
switch the system in MANUAL mode and activate the
mono-command (the light increases or decreases for all the
time the button is pressed). When the time delay related to
the presence sensor elapses, the system will be turned off
regardless of the condition in which it was (AUTO or MAN-
UAL).
Mode SMART 4
Arrangement for the typical zone:
•ModLC-WM module
•Without presence sensor (it is better to use ModLC-WM
without integrated presence sensor)
•Local button connected to x.y; One touch on this button
toggles between AUTO and OFF
Operation:
Starting with lights OFF, a One Touch pressing on the local
button will activate the AUTO brightness regulation; anoth-
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Contatto
ModLC-WM / ModLC-WM-P
er One Touch pressing will switch OFF. Long pressings on
the local button will switch the system in MANUAL mode
and activate the mono-command (the light increases or de-
creases for all the time the button is pressed). To switch
OFF after a mono-command, a One Touch pressing must
be performed.
Presence sensor and digital input
As said before, ModLC-WM module provides a digital input
(ON/OFF, which can be set as NO/NC) which, for -P ver-
sion, is parallel connected to the internal presence sensor.
When activating the sensor (or the input), the point 2 of the
input CH4 of ModLC-WM will be activated; when deactivat-
ing the sensor (or the input), the point 2 remains activated
until the expiring of a delay time which can be configured,
during the setting up, in the range 0 to 3600 seconds (1
hour). This behavior allows to send to MCP, with the cho-
sen delay, the information about the deactivation of the dig-
ital input, in order to switch off the light source with a given
delay in respect to the last detected presence.
Information on the bus
As said before, ModLC-WM module takes, inside the Con-
tatto bus, 1 input address and, if enabled, 1 output ad-
dress, both made by 4 channels 16-bit.
Input section:
This section reports the following information:
Point CH1 CH2 CH3 CH4
1
Value pro-
portional
to the
brightness
detected
by the
sensor
Calculated
value for
the auto-
matic
brightness
regulation
Not
used
Status Aut.Reg.
2Status N+delay
3-
4-
5-
6-
7-
8-
9-
10 -
11 -
12 -
13 -
14 -
15 -
16 -
The meaning of this input information will be here de-
scribed in detail.
CH1: Channel 1 reports a value proportional to the bright-
ness detected by the sensor, eventually multiplied by the
parameter K Light Sens.
CH2: Channel 2 reports the value or the command code to
be sent to the dimmer or to the DAL group, in order to exe-
cute the required functions, through proper programming of
MCP (see examples in the following).
CH4
Channel 4 reports two digital points:
Point 1: the status of the automatic regulation (1 when
it is activated); this point always reflects the status of
the output CH4 point 1.
Point 2: the status of the presence sensor (or of the
digital input), including the delay chosen during the
setting up (see the related paragraph). This point will
be activated if the sensor is activated or if the delay
time, in respect to the last presence detection, has not
been elapsed yet.
Output section
The module can have, as said before, an output address
too, for the setting via bus of some operating parameters;
this address has to be enabled, if needed, through the con-
figuration panel of ModLC-WM module, as described in the
following. The output section reports the following informa-
tion:
Point CH1 CH2 CH3 CH4
1
Set the
setpoint
for the
automatic
bright-
ness reg-
ulation
Preset
Set the
deactiva-
tion delay
time of
the occu-
pancy
sensor
Activate Aut.Reg.
2Reset N Delay
3Reset Aut.Reg.
4Global Reset
5Virtual Button
6No ON by pres.
7Occupancy forcing
8-
9-
10 -
11 -
12 -
13 -
14 -
15 -
16 -
The meaning of this output information will be here de-
scribed in detail.
CH1
Channel 1 allows to set the desired setpoint value for the
brightness regulation; in practice, when the system is regu-
lating, the value of input CH1 will be equal (or very near) to
the value of output CH1. Allowed value for output CH1
ranges from 0 to 1000.
CH2
Output channel 2 is meaningful only if ModLC-WM module
has been set to a SMART mode.
Writing a value on this channel (exclusively in the range 0
to 100), the system will be switched to MANUAL mode and
this value will be copied to input CH2, so that automatically
it will be then transferred to the dimmers (or DAL group) by
MCP. This is useful to impose a fixed value of light from the
supervisor or similar devices.
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Contatto
ModLC-WM / ModLC-WM-P
When the Preset is activated, that means when output CH2
has a value between 0 and 100, the presence sensor, if in-
stalled, will be is ignored (in order to prevent the lights turn
ON and OFF caused by the sensor); the local button too
will have non effect (regardless if it is the “physical” button
or the point 5 of output CH4 output, see below).
Otherwise this channel will contain the value 128 indicating
that the Preset is not active.
To exit the Preset mode, activate the point 4 of output CH4
(Global Reset, see below), or switch to AUTO mode acti-
vating the point 1 of CH4; in this case, the value on CH2
will be automatically set to 128.
CH3
Channel 3 allows to set the deactivation delay time of the
occupancy sensor (seconds).
CH4
Channel 4 allows to perform the following actions:
Point 1: ctivate utomatic Regulation. When acti-
vated, it enables the automatic regulation, therefore
ModLC-WM module calculates the value to be placed
on input CH2 to reach and keep the setpoint specified
by output CH1. When deactivated, ModLC-WM mod-
ule stops the calculation and the input CH2 holds the
last calculated value; to reset this value, the point 3 de-
scribed in the following has to be activated. In SMART
mode, this point will be automatically managed by
ModLC-WM module itself.
Point 2: Reset IN Delay. When activated it forces the
expiring of the deactivation delay time of the digital in-
put; this point works on the level: the delay time will be
always zero if it remains activated.
Point 3: Reset utomatic Regulation. When activat-
ed it disables the automatic regulation, it deactivates
the point 1 of the same output channel and it reset the
input CH2 (and this means, normally, that lights will be
switched OFF); if this point remains in its active state,
it will not possible the activation of the output point 1,
therefore it will not be possible the activation of the au-
tomatic regulation. In SMART mode, unless a particu-
lar function has to be obtained, this point must not be
modified.
Point 4: Global Reset. When activated a global reset
will be performed, thus a reset of automatic regulation,
a clear of N delay and a zeroing of input CH2. As long
as this point remains activated, everything remains
locked, including the detection of the digital input of
ModLC-WM and of the local pushbutton (of course the
communication on the bus remains in operation); then
this point may be used by the supervisor to disable the
ignition of the lamps. When this point goes deactivat-
ed, the system starts normally according to how it was
configured and according to the situation of that mo-
ment.
Point 5: Virtual Button. Controlling this output point,
the same functions related to the local “physical” but-
ton, for the selected SMART mode, can be achieved;
this point is therefore useful to have a button on the
supervisor (or on WEBS page) with functions similar to
those of the “physical” button (keep in mind that One
Touch features, when allowed, may not work properly
due to delays introduced by the communication be-
tween the supervisor, MCP and ModLC-WM).
Point 6: No ON by pres. When active, the switching
ON in SMART1 does not happen by presence sensor
but by local button only.
Point 7: Occupancy forcing. When activated, it forces
the occupancy in ModLC module; in other words, this
output point behaves as if it is the "physical" ocupance
input of ModLC. This point is useful, for example,
when the occupancy of a ModLC module must set the
occupancy in another ModLC module.
Configuration of ModLC-WM module
Note: in the ollowing, the terms ModLC and ModLC-WM will
be absolutely equivalent.
The configuration available in MCP DE allows to set the
parameters of ModLC module through MCP and the Con-
tatto bus; this operation, to be executed during the setting
up, will be here described. From the main menu of MCP
DE select Configuration, Sensors and then MODLC >=
2.5; the following window will be shown:
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Contatto
ModLC-WM / ModLC-WM-P
Note: the "Not Included" option, when checked, allows all the pa-
rameters displayed on the panel to be sent to the ModLC except
for the Regulation Parameters. This option is useful when you
want to program several ModLCs (also with the "Multi" option)
without modifying the regulation parameters.
The meaning of the fields and of the buttons in this window
will be here described.
Module ddress: it is the address of ModLC module to be
configured or to be read.
Multi: to program all ModLC modules whose address is be-
tween Module Address and “to”
Output ddress: checking this option, the output address
of ModLC will be enabled (the value of the output address
will be the same assigned to the input).
Read: to read the parameters from ModLC and to show
them into the window.
Program: to transfer the parameters currently shown in the
windows to ModLC module.
Default: to restore the module parameters to default values
ID & Ver: to check that ModLC module with the specified
address is connected to the BUS and to show the firmware
version.
Close: to close the configuration panel.
Regulation parameters
Ki (integral coefficient): this parameter, multiplied by the
error value (3), defines the amount of the increase or de-
crease, in respect to the previous value, of the value to be
sent to the dimmer (CH2 of the input section); this parame-
ter will be taken in account only when the measured value
is outside the zone of Ki Fine (then far from setpoint, see
later). ncreasing the value of Ki, the system will reach the
setpoint quickly; when the distance from the setpoint is low-
er than a given value (see Amplitude of Ki Fine Zone), the
coefficient changes to Ki Fine defined in the following point.
n this way the approaching to the desired setpoint occurs
with more precision (and without oscillations); of course, Ki
Fine must be lower than Ki. Allowed values for Ki: 0.001 to
0.999.
(3): the error is defined as the difference between the setpoint and
the brightness value measured by the sensor.
Ki Fine (fine integral coefficient): as for the Ki described
at the previous point, but with lower value; this parameter
will be considered when the measured value is near to the
setpoint (see Amplitude of Ki Fine Zone). For the optimal Ki
Fine values, see the table at the end of this paragraph. Al-
lowed values for Ki: 0.001 to 0.999.
Ki Fine Zone Width: it defines the zone around the set-
point where the fine integral coefficient will be applied.
Dead Band (DB): it defines the zone around the setpoint
where the automatic regulation algorithm does not execute
any calculation; therefore, if the measured value falls inside
this zone, no new values will be sent to the dimmer. This
value can be 0, and in this case the precision in regulation
will be the best (but oscillations can occus).
Dead band at zero (DBZ): when the regulator has calcu-
lated an output value equal to zero, the dead band be-
comes equal to this parameter, which must be greater than
that of the previous point. t is used to avoid ON-OFF oscil-
lations when the calculated level is zero.
Set Ramp: it defines the value of the working ramp of the
dimmer during the automatic regulation; the ramp allows to
avoid discontinuous light changes during the automatic reg-
ulation.
Threshold setting
No Threshold: no threshold will be applied.
Minimum Value: it defines the minimum value which can
be sent to the dimmer (as percentage value) when the
brightness automatic regulation is running. This parameter
is useful when it is required to never switch off the lamps,
even if the brightness read by the sensor is very higher in
respect to the setpoint.
OFF Threshold: it defines a brightness value on the dim-
mer output (as percentage value) under which the lamps
have to be switched off. This parameter is useful when the
lamps should be dimmed to a so low value that the lumi-
nous contribute is near to zero, therefore it is more conve-
nient to completely switch off the lamps.
Presence delay: this parameter is the time that must
elapse (in seconds) after deactivation of the presence sen-
sor (internal or connected to N) before the information is
sent on the bus.
K Light Sens.: the value read by the light sensor is multi-
plied by the value specified for this K, allowing to scale the
brightness value transmitted on the bus as desired. f this K
is 1, the brightness value on the input channel 1 is exactly
what the sensor measures. For different values, the value
on the bus will be the “native” value multiplied by K. This
function is useful if you want to "align" the value read by a
reference luxmeter (eg located on the working plane) and
the value reported by the ModLC. The same scaling, if K is
different from 1, also occurs on the setpoint, so that the two
values are congruent. Allowed values for K: from 1.0 to
15.8 included.
Digital Input 1
Normally Closed: when checked, the unique input is set
for normally closed contact (only for ModLC-WM, in the
case of ModLC-WM-P it must be left on NA).
Digital Input 2
Not used.
SMART Setting
This section of the configuration window allows to choose if
ModLC module has to work in “No Smart” mode (thus emu-
lating the behavior of ModLC with firmware lower than 2.0),
or according to one of the available 4 SMART modes as
described in the related paragraph.
When selecting one of the 4 SMART modes, the parame-
ters that will be time to time enabled as necessary for that
mode must be set. n detail:
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Contatto
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Smart 1 requires the setting of address, channel and point
to which the local button has been connected.
Smart 2 requires the setting of address, channel and point
to which the local button has been connected and the value
at which the lights must be switched on at One Touch
pressing.
Smart 3 requires the setting of address, channel and point
to which the local button has been connected and if the
lights belong to a DAL system, in which case the related
option must be activated (otherwise Contatto dimmer mod-
ules will be assumed).
Smart 4 requires the setting of address, channel and point
to which the local button has been connected or, as option,
to choose whether the local button is connected to the digi-
tal input of ModLC (in this case the input delay will be ig-
nored).
The button ? in the configuration window recalls a help win-
dow describing the available Smart modes, in order to have
a quick reference when choosing the proper operation.
To set the parameters of the light regulator, the following
the following procedure is recommended:
✗darken the ambient from sources of external lights (or
perform the procedure after sunset or in a dark day)
✗Set K Sens. Light at 1 (important)
✗force zone lights to be adjusted to 100%
✗read the brightness value Lfs (full scale brightness)
measured by the ModLC
✗the optimal values of the parameters Ki, Kif, AZ Kif, DB
and DBZ (respectively Ki, Ki Fine, Ki Fine Zone Width,
Dead Band and Dead Band at zero) are those in the
table on the line closest to measured Lfs
Lfs Ki Kif Z Kif DB DBZ
100 0,170 0,065 5 0 5
200 0,095 0,037 10 1 10
300 0,070 0,027 15 1 15
400 0,058 0,022 20 2 20
500 0,050 0,019 25 2 25
600 0,045 0,017 30 3 30
700 0,041 0,016 35 3 35
800 0,039 0,015 40 4 40
900 0,037 0,014 45 4 45
1000 0,035 0,013 50 5 50
These values can however be adjusted based on the char-
acteristics of the application. Please note that large value
for Ki and Kif could cause fluctuations.
MCP programming examples
For proper operation, it is absolutely mandatory to add to
MCP configuration the directive FIELDtoRAM for output
CH2 and CH3 and for point 1 of output CH4 related to all
installed ModLC (provided that the output section of ModLC
has been enabled, otherwise this directive can be omitted).
f, for instance, 2 ModLC modules addressed as 1 and 2
have been installed, the following directive must be added
to MCP configuration:
FIELDtoRAM = ( AO1:2, AO1:3, O1:4.1, \
AO2:2, AO2:3, O2:4.1 )
Example 1: No smart
f ModLC is used as simple sensor of light, then the output
address of the module should be disabled because it will
not be used; in this case, MCP needs only the following
configuration directive (supposed to have assigned the ad-
dress 1 to ModLC module):
MODLC = ( I1 )
At this point, the read brightness value (CH1 input) and the
status of the digital input (CH4 input, point 2) will be avail-
able; the digital input information will include or less the de-
lay as it has been configured (see the related paragraph).
The value and the status can be then used in the equations
and/or in the script of MCP in order to implement the want-
ed functions.
Example 2: No smart
A simple system for the automatic regulation can be made
by a lighting device controlled by a dimmer module (for in-
stance Mod2DV or Mod2DM) and by the presence detec-
tion sensor DUEMMEGI SRP connected to the input of
ModLC whose output address has been enabled. Suppos-
ing to have assigned the address 100 to Mod2DM and 1 to
ModLC, the configuration of MCP must include the follow-
ing directives:
MODLC = ( I1, O1 )
MOD2DM = ( I100, I101, O100, O101 )
FIELDtoRAM = ( AO1:2, AO1:3, O1:4.1 )
Fixed a value for the setpoint, writing its value on the output
CH1 of ModLC, the application requires that, as soon as a
presence is detected, the lamps switches on and the auto-
matic regulation is activated. At the deactivation of point 2
of the input channel CH4, that means after the delay time
has expired from the last detected presence (see previous
paragraph), the lamp must be switched off.
To obtain this behavior, MCP controller must be pro-
grammed with the following equations:
O1:4.1 = I1:4.2
AO100:1 = AI1:2
O1:4.3 = !I1:4.2
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Contatto
ModLC-WM / ModLC-WM-P
The first equation activates the Auto bit at the activation of
the digital input of ModLC, corresponding to the detection
of a presence. When ModLC module is in Auto mode, the
values (in the range 0 to 100) to be sent to the dimmer will
be available on the input channel CH2, thus allowing to
reach and keep the desired setpoint; therefore, it will be
enough to send these values, through MCP, to the dimmer,
and this is done by the second equation.
The third equation, finally, activates the Reset Auto bit at
the deactivation of the input point 2 of CH4 (presence plus
delay), thus zeroing the value to be sent to the dimmer and
causing the lamp switching off.
Example 3: Smart 1
n addition to the operating mode of the previous example,
the application requires a button performing the classic
“single command” function, allowing to manually adjust the
brightness of the lamp; in other words, pushing and holding
down this button, the brightness must increase or de-
crease, keeping the reached value at the release of the
same button.
When the system has the automatic regulation activated, a
short push (less than 0.4 seconds) on the button will switch
off the light.
n any case, when no more presence is detected (included
the delay time), the lamp will be switched off. When a new
presence is detected, if Ox:4.6=0, the system will return to
the light automatic regulation, otherwise (Ox:4.6=1) the
switching ON can occur by local button only.
n practice, the operation (Ox:4.6=0) is the following:
an employee goes in its office, the presence will be detect-
ed by the sensor DUEMMEGI SRP and the light will be
switched on in automatic regulation. f the employee wants
to increase the brightness, then he pushes and holds down
the button; if instead he wants to decrease the brightness,
he releases the button and then he pushes and olds down
it again. When the brightness satisfies the employee, he re-
leases the button and the lamps will maintain the reached
brightness value. To switch OFF the lights , the employee
will execute a short pushing on the button; to switch ON
them again, another short pushing is required.
f the employee exits from its office and he does not enter
again for a time longer than the programmed delay, the
light will be switched off. When the employee enter again in
the office, his presence will be detected and the system will
start again in automatic regulation mode, even if the em-
ployee had manually adjusted before the brightness.
The operation just described, is exactly the Smart 1 mode,
therefore ModLC must be set for this mode. Assuming that
the button is connected to a local Mod8 /A with address 50,
and that the zone is controlled by a Mod2DM dimmer mod-
ule with address 100 and 101, the MCP configuration must
contain the following directives:
MODLC = ( I1, O1 )
MOD2DM = ( I100, I101, O100, O101 )
MOD8I/A = ( I50 )
FIELDtoRAM = ( AO1:2, AO1:3, O1:4.1 )
The program of MCP, thanks to Smart mode of ModLC, will
be simply the following:
AO100 = AI1:2
AO101 = AI1:2
To control more dimmer modules from the same ModLC, it
is enough to add rows of equations like the previous ones.
When using a DAL system (interfaced by ModDAL mod-
ule), instead of dimmer modules of Contatto family, it will
be easier to use the specific equation. Suppose to realize a
system made by 4 offices, each one with its ModLC config-
ured with one of the available Smart modes.
Also suppose that a DAL group each office has been as-
signed to each office (e.g. G1, G2, G3 and G4). To transfer
the value or the command proposed by each ModLC (con-
tained in the input CH2) to the respective group, the DAL
equation may be used as follows:
AO100:1 = DALI ( G1, AI1:2, \
G2, AI2:2, \
G3, AI3:2, \
G4, AI4:2 \
)
where AO100:1 is the channel 1 of ModDAL controlling
the 4 offices and are the related AI1-AI2-AI3-AI4
ModLC modules.
Mapping
MCP Visio allows to show the map of ModLC module as in
the following figure.
Note: if the output address has not been enabled, the right side of
the module map (related to the setpoint and digital commands) will
be shown in gray color.
Input section
Brightness: it is the brightness value measured by ModLC
module (three times the lux value).
Dimmer Value: it is the value that, during the automatic
regulation, has to be sent to the dimmer (%).
Digital points:
✗Auto: it shows the status of the brightness automatic
regulation
✗n + Delay: it shows the status of the digital input, in-
cluded the delay time
✗N1 and N2, for ModLC-WM and WM-P, are not used
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Contatto
ModLC-WM / ModLC-WM-P
Output section
Brightness Setpoint: it is the brightness setpoint for the
automatic regulation (3 times the lux value).
Preset: it is the Preset value; entering a value in the range
0 to 100, the system will be switched to Preset mode and
this value will be copied to input CH2, so that automatically
it will be then transferred to the dimmers (or DAL group).
When it contains a value in the range 0 to 100, the pres-
ence sensor and the local button, if installed, will be is ig-
nored; otherwise this channel will contain the value 128
indicating that the Preset is not active.
Delay: the delay of the presence sensor.
Digital points:
✗Auto: point allowing to enable/disable the automatic
regulation
✗Clear Delay: when this point is activated, the delay
time of the digital input is forced to zero
✗Reset Auto: when this point is activated, the automatic
regulation is disabled and, in addition, the value to be
sent to the dimmer is forced to zero
✗Reset All: when activated a global reset will be per-
formed, thus a Reset Auto, a Clear Delay and a zero-
ing of input CH2
✗Virtual P.: controlling this output point, the same func-
tions related to the local “physical” button, for the se-
lected SMART mode, can be achieved
✗On by P. only: option for mode SMART1
✗Occup.Forcing: forces the occupancy
Technical characteristics
Supply voltage 24V ± 25% SELV
MAX current consumption 30mA @ 24V
Sensor type
Full scale
Resolution
Measurement error
Photo sensor with spectral
response equivalent to the
human eye sensitivity
350 lux
0.3 lux
±5% of full scale value
Presence sensor (-P)
Aperture angle
Range of detection MAX
Passive infrared principle (P R)
100°
10 meters
Digital input
Operating voltage
nput current
configurable as NO or NC
24V nominal
4mA @ 24V
Operating temperature -10 ¸ +50 °C
Storage temperature -30 ¸ +85 °C
Protection degree P20
Note: this technical sheet applies to ModLC-WM and ModLC-
WM-P equipped with FW 2.5 or higher.
Outline dimensions
80mm
80mm 34,2mm
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