3.
26
(MT13 - En 2015)
PUSH-BUTTON MODULES WITH INTEGRATED
ENCODING BOARD
The button modules with integrated encoding board, thanks to the
connection to the encoder module CD2131PL÷CD2138PL, allow the
calls in DUO systems.
PL24S
. Module with front plate and four aluminium call buttons.
Complete with name holders with transparent screen green back-
lighting, resistant to breaking and connection cable to the next module.
PL228S
. Same as the previous, but with 8 call buttons on two rows.
Terminals
A+
AC or DC power supply input for name-plate Led (13Vac/dc-80mA)
A-
AC power supply or ground input for name-plate Led
ON
ON
1
1
2
2
3
3
5
5
4
4
UP
UP
JP1
JP2
Programming
The microswitches, present on the back of the PL24S or PL228S, allow
the digital encoder to recognize the code of the connected buttons,
consequently they must be programmed properly. The programmed
codes must correspond to the addresses of the internal users.
In case of installations with secondary door stations (multiple entrances),
attention must be paid also to the numerical interval recognized by the
digital exchanger. The code set on the microswitches (see tables 3.8 on
page 3.27) determines the address of the users called by pressing the
buttons of the push-button module in a sequence (starting from above)
according to the following rule:
Called User Address (IUC) by pressing the buttons of the module
(PL24S or PL228S) = Address Associated with First Button (IPP)
of the digital encoder (CD2131-32-34PL or CD2138PL) + Number
Associated with Button (NAP).
General rule: IUC = IPP + NAP
General rule applied to the first example below;
- if you press the first button from above of the PL24S:
36 (IPP) + 4 (1
st
NAP) = 40 (IUC)
the user with address 40 will be called.
Examples:
- If the first button of the
digital encoder CD2134PL
is associated with address
36 and code 4 is set on the
microswitches of the first
button module PL24S
(numbers associated with
buttons 4 ÷ 7), starting from
up down, the buttons of the
PL24S module will call the
users with address 40, 41,
42 and 43.
- Addresses 38 and 39 will
be lost when using the
CD2132PL digital encoder
and the art.PL24S as first
push-button module.
- When using the digital coder CD2138PL the first 8 addresses are
used for the coder itself. Therefore, set code 8 or higher on the first
push-button module art. PL228S.
The following addresses are set in the example:
- 36 to coder CD2138PL
- 8 to first key on the right in module PL228S
- 12 to first key on the left in module PL228S
ON
1 2 3 4 5
User 40
User 36
User 41
User 37
User 42
User 38
User 43
User 39
PL24S
CD2134PL
Code to be set =
(numbers from 4 to 7 -
)
4
NAP
See the example coding
of the encoder on page
3.22 (mode 1A)
Address 1 button (
)
st
IPP = 36
ON
1 2 3 4 5
PL24S
CD2132PL
Code to be set =
(numbers from 4 to 7
4
-
)
NAP
User 40
User 41
User 42
User 36
User 43
User 37
See the example coding
of the encoder on page
3.22 (mode 1A)
Address 1 button
st
(
)
IPP = 36
ON
ON
1
1
2
2
3
3
4
4
5
5
Us.40
Us.48
Us.41
Us.49
Us.42
Us.50
Us.43
Us.51
Us.36
Us.44
Us.37
Us.45
Us.38
Us.46
Us.39
Us.47
PL228S
CD2138PL
Code to be set =
(numbers from 8 to 11
8
-
)
NAP
Code to be set =
(numbers from 12 to 15
12
-
)
NAP
SW2
SW1
See the example coding
of the encoder on page
3.22 (mode 1A)
Address 1 button
st
(
)
IPP = 36
4. push-button
4. p.
3. push-button
3. p.
2. push-button
2. p.
1. push-button
1. p.
8. p.
7. p.
6. p.
5. p.
J1
ON
ON
ON
ON
ON
ON
1
1
1
1
1
1
2
2
2
2
2
2
3
3
3
3
3
3
5
5
5
5
5
5
4
4
4
4
4
4
UP
UP
UP
UP
UP
UP
ON
1234
ON
1234
J1
1
2
3
S1S2
EC
EM
CD...
PL24S
PL228S
PL24S
PL228S
PL24S
PL228S
1
n
n+1
13V
13V
A+
A -
A+
A -
J1
To next push-buttons module
To previous push-buttons mod-
ule or digital encoder
Power supply of the modules
PL24S and PL228S with addi-
tional transformers
Installation and connections
- Connect the first push-button panel
to the digital encoder module with
the cable supplied.
- Connect the second push-button
module to the first one with the
cable supplied with the second
module.
- Connect all modules in a sequence.
- Connect the two power supply wires
of the name plate LED’s (13Vac) to
terminals A+/A- of the first push-
button panel.
Note
Great attention must be paid when
the code 0 (numerical interval 0-3) is
set on the micro-switches because
in this case the first button, starting
from the top of the module PL24S or
PL228S will call no users. This is
because the digital system does not
recognize the address 0 (zero).
DIGITAL ENCODER
DOOR STATIONS
Using 2 transformers to
power the LED's of name
plates, the 2 power supply
units must be isolated by removing
the jumper J1 on the last module of
the first group.
