KEPCO S12 User manual

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S12 MULTI-INPUT PERIPHERAL DISPLAY
INSTALLATION AND OPERATION
INDEX
FEATURES.......................................................................................................................................2
DESCRIPTION..................................................................................................................................2
SPECIFICATIONS............................................................................................................................2
STROBE INPUT................................................................................................................................3
PARALLEL DATA INPUT..................................................................................................................3
MULTIPLEX DATA INPUT................................................................................................................3
DIP SWITCH SELECTION................................................................................................................3
DIMENSIONS ...................................................................................................................................5
MOUNTING INSTRUCTIONS ..........................................................................................................5
WIRING.............................................................................................................................................5
RIBBON CABLE WIRING.................................................................................................................6
SAMPLE WIRING 6 DIGIT PARALLEL............................................................................................7
SAMPLE WIRING: 4 DIGIT MULTIPLEX INPUT .............................................................................8
RIBBON CABLE / P.C. BOARD DESIGNATIONS ...........................................................................9
Warranty............................................................................................................................................9
Decoding Part Number
EXAMPLE S12 6X1
Series
S12: 12 to 24 V Operation
Number of Digits
4: 4 Digits
6: 6 Digits
Terminations
X: Screw Terminal with Ribbon Adapter "X"
(Order Ribbon Cable separately)
Input Type
1: Sourcing (User drives inputs positive, to + DC
4: Sinking (User pulls inputs negative, to -DC
99232 12MAY04
Kessler Ellis Products
10 Industrial Way East
Eatontown, NJ 07724
800-631-2165 • 732-649-7100
Fax: [phone]
Website: www.kep.com

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FEATURES
•4 or 6 digit large display
•Standard 12 to 24 VDC inputs
•Easy hook-up to Programmable Controller
•Full parallel or digit strobe input
•Positive or negative true input
•Optional - Sourcing or Sinking inputs
•Standard 1/8 DIN case
•12 to 24 VDC Power
•NEMA 4 bezel
DESCRIPTION
The S12 display is designed to be a window into programmable controllers. Working with any 12
to 24 VDC PLC output card, it accepts full parallel or strobed data from the controller. It can
display values such as temperature, setpoints, time, speed or other data within the controller.
This keeps the operator aware of important parameters. The 4 or 6 digit S12 display is mounted in
a 1/8 DIN housing and has .56” red-orange, 7 segment displays. The S12 receives data full
parallel, 4 lines per digit, or may be switch selected to receive all data on 4 binary inputs directed
by individual digit strobe lines. Decimal position, positive or negative logic, two different display
codes as well as input filtering are selectable by switches behind the removable front lens. Any
number of displays can be linked together using the optional ribbon cable and strobe lines.
SPECIFICATIONS
DISPLAY: High efficiency 0.56 inch, 7 segment LED
POWER: 12 VDC -10% to 24VDC +10% , Current: 175 mA maximum
DISPLAY CODES: Two "Display codes", switch selectable:
Hexadecimal (H) code displays 0-9, A-F
B (B) code displays 0-9, -, E, H, L, P, (blank)
INPUT MODE: Data can be entered full parallel (24 lines for 6 digits). Several displays can be
linked together using the optional parallel ribbon cable. By connecting together the 6 digit
strobes of each display, each display can be updated by its separate strobe bank. Change a
dipswitch and you can enter all data over 4 data lines by strobing the 6 individual strobe lines.
The minimum strobe pulse is 1 msec. but the S12 can be set by dip switch to react only to
longer pulses. This prevents data from being entered by noise signals. If the strobe input is
held at "Display Update" voltage level, the display changes as data changes.
NOTE: The display is centered on 4 digit units. Display data and strobes are connected to
terminals for the 4 inside digits.
DECIMAL POINT: Dipswitch selectable in any position or none.
INPUTS (Binary data and strobes):
VOLTAGE: High: Greater than 75% of supply voltage.
Low: Less than 50% of supply voltage.
IMPEDANCE: 4.7K Ohm to ground.
NOTE: INPUT TYPE 4 (last digit of part number) has 4.7K Ohm to +DC supply voltage. Inputs
not connected will be in a "High state". Inputs must be driven low by a "Sinking" driver.
Use only with output modules that sink to ground.
POLARITY: (Dipswitch selectable) Unit accepts either positive or negative true data.
TEMPERATURE: Operating +32 F (0 C) to + 130 F (+54 C).
Storage: -40 F (-40 C) to +200 F (+93 C).
TERMINATIONS: "X”: 32 contact socket screw terminal accepts wire up to #12 AWG. "X" adapter
also has connector for ribbon cable hook-up of multiple displays. (Ribbon cable ordered
separately.)

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STROBE INPUT
The strobe input controls data entry into the display. It is used to latch the data or enable the
display to be updated by new data inputs. The polarity of the strobe is set by SW2. Minimum
strobe pulse is 1 mSec. The S12 can be set by SW7 and SW8 to react only to longer pulses, thus
preventing data from being entered by noise signals. If the strobe is held at " Display Update"
voltage level, the display changes as the data changes.
PARALLEL DATA INPUT
Data can be entered full parallel (24 lines for 6 digits). When driving a single display, strobe inputs
do not need to be connected if
A: S12 has INPUT TYPE 1 and SW 1 is ON
B: S12 has INPUT TYPE 4 and SW 1 is open
Otherwise, connect all strobes together and jumper to ground (to + DC power If negative polarity
is selected). The display will change as data changes. Several displays can be linked together
with the optional ribbon cable that connects data and power to every display in the link. Connect
the digit strobes together for each display. Connect the strobe bank for each display to an output
driver programmed to be normally high (Normally low If negative true polarity). When data on the
parallel ribbon needs to be displayed, activate the selected display strobe bank for the time set on
switches 7 and 8 to update that display. Data must be constant at least 2 mSec. before and after
the strobe is returned to the latch voltage level.
Once the strobe is returned to the "latch "voltage level, new date can be generated on the parallel
ribbon cable and a new display updated by activating its strobe.
MULTIPLEX DATA INPUT
If SW 1 is open, all data is entered in a multiplex fashion on 4 lines only (TB-1 pins 7, 8, 9, 10).
The strobe lines must be normally high (normally low for negative true polarity). Activate digit
strobes one at a time to latch each digit as data is sent for that digit. (Digit 1 is LSD, digit 6 is
MSD.) Data must be constant at Ieast 2 mSec. before and after the strobe returns to the latch
voltage level. Any number of displays can use the same 4-wire data bus using individual strobes
to update each digit of each display.
DIP SWITCH SELECTION
The S12 Display is designed with several switch selectable options, which are set by the end
user. New units are normally shipped with switches 2 and 6 in the ON (down) position and 3, 4, 5,
7 and 8 in the Open (up) position. If changes are needed, locate the switches behind the front
lens. To remove the lens, locate the two screws on both sides of the unit. The switches are
located at the lower right (see below). To replace the lens, insert the front bezel and insert the two
screws.

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FRONT SELECT SWITCHES
DIP SWITCH SETTING
1 = ON (DOWN), 0 = OPEN (UP)
SW 1: DATA INPUT MODE
1 = Parallel (24 date lines)
0 = Multiplex (4 data lines)
SW2: INPUT POLARITY
1 = Data is positive true; high strobe
input latches display, low strobe updates
display.
0 = Data is negative true; low strobe
input latches display, high strobe
updates display.
SW3, 4, 5: DECIMAL POINT LOCATION
SW3 SW4 SW5 DECIMAL
1 1 1 NONE
1 1 0 XXXXXX.
1 0 1 XXXXX.X
1 0 0 XXXX.X
0 1 1 XXX.XXX
0 1 0 XX.XXXX
0 0 1 X.XXXXX
0 0 0 NONE
SW 6: DISPLAY CODES
1 = HEX CODE
0= “B"CODE
DATA
8421 HEX CODE DISPLAY "B" CODE DISPLAY
0000 0 0
0001 1 1
0010 2 2
0011 3 3
0100 4 4
0101 5 5
0110 6 6
0111 7 7
1000 8 8
1001 9 9
1010 A-
1011 b E
1100 C H
1101 d L
1110 E P
1111 F(BLANK)
SW7, 8: STROBE RESPONSE:
(For best noise protection use longest time
possible)
SW7 SW8 RESPONSE TIME
1 1 1 mSec
1 0 2 mSec
0 1 10 mSec
8.8.8.8.8.8.
1 2 3 4 5 6 7 8

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DIMENSIONS
MOUNTING INSTRUCTIONS
The S12 is mounted in a 3.662” by 1.772" panel cutout - The screw terminal adapter and the 2 side mounting
brackets must be removed so that the S12 may be inserted through the panel cutout. After the unit is inserted into
the panel place the two side brackets into the side grooves. Insert the two #8 screws through the back of the side
brackets and tighten until the front of the brackets are tight against the back of the panel. Plug the terminal adapter
onto the back of the unit. Put the fiber washers on the #4 screws. Insert each screw in turn through the corner holes
of the terminal and one of the spacers and tighten into the plastic housing.
WIRING
TERMINAL ADAPTOR "X"
4 DIGIT UNITS HAVE DISPLAY CENTERED
WIRE DATA AND STROBES TO DIGITS 2 THROUGH 5
3.925
(99.7mm)
KEP
2.625
66.68mm
4.437
112.7mm
PANEL CUTOUT
0.015 R (0.038mm)
MAXIMUM
1.772
45mm
3.622
92mm
CUSTOMER PANEL
Panel thickness 0.062(1.5mm)
To 0.187 (4.7mm) Maximum
.587 4.245
107.8mm
BEZEL
GASKET
MULTIPLEX/
STROBE
INPUTS DIGIT 1
DIGIT 2
DIGIT
3 DIGIT 4 DIGIT 5 DIGIT 6
TB1 16 15 14 13 12 11
10 9 8 7 6 5 4 3 2 1
TB2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

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RIBBON CABLE WIRING
*SPECIAL LENGTH ORDER FORMAT
S12RX -- Specify ribbon lengths between connectors in 6 inch increments using alphabet letters to indicate number
of 6 inch intervals. Example: A = 6”, B = 12", C = 18" etc. List the interval between the top display and the next
highest first, then list lower ones in order.
SI2RXACCB: is a ribbon to connect 5 displays with 6" between 1st (top) and 2nd; 18 " between 2nd and 3rd; 18"
between 3rd and 4th; 12 " between 4th and 5th (bottom).
16 TB1 1
1TB2 16
S12 RIBBON FOR ADAPTOR "X "
Ribbon is continuous with connectors
attached each 12 inches.
Part Number: S12RX- Specify number of
units to be linked together.
Example: *S12RX4 is cable to connect
four S12 units spaced 12 inches apart.
*For special lengths consult factory.
S12 ADAPTOR "X" FOR RIBBON CABLE
(Already supplied as termination "X"
when ordered on S12 display)
May be ordered separately #S12AX.
May be used at PLC to convert ribbon
cable end to screw terminal.
TOP (FIRST)
DISPLAY
BOTTOM
(LAST)
DISPLAY
16 TB1 1
1TB2 16
DATA AND POWER
STROBES
COLORED
TRACER
(WIRE #1)
Jumper
Strobes
For 1 line
Display
Select
16 TB1 1
1TB2 16
16 TB1 1
1TB2 16

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SAMPLE WIRING 6 DIGIT PARALLEL
SET SW1 ON (PARALLEL INPUT)
SW2 ON (POSITIVE TRUE POLARITY)
*STROBES NEED TO BE JUMPERED TO -DC
ONLY IF INPUT TYPE 4 ORDERED.
S12 DISPLAY
+12 TO 24 VDC
TB1 16 15 14 13 12 11
10 9 8 7 6 5 4 3 2 1
TB2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
+DC
80 7
40 6
20 5
10 4
83
42
21
10
-DC
*STROBES
+DC
100 0
200 1
400 2
800 3
1K 4
2K 5
4K 6
8K 7
-DC
+DC
10K 0
20K 1
40K 2
80K 3
100K 4
200K 5
400K 6
800K 7
-DC
POWER -
SUPPLY +
PLC

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SAMPLE WIRING: 4 DIGIT MULTIPLEX INPUT
ALL DATA FROM PLC (D1, D2, D4, D8) IS ENTERED INTO MULTIPLEX INPUTS
(TB1 - PINS 7, 8, 9 AND 10). STROBES LATCH THE DATA, ONE DIGIT AT A
TIME, INTO THE PROPER DIGIT. SET SW1 "OPEN" FOR MULTIPLEX. SW2
SETTINGS DETERMINE DATA AND STROBE POLARITY.
INPUT TYPE 1 (LAST DIGIT OF PART NUMBER) REQUIRES SOURCING PLC
OUTPUT MODULE. INPUT TYPE 4 REQUIRES SINKING PLC OUTPUT MODULE.
S12 DISPLAY
+12 TO 24 VDC
TB1 16 15 14 13 12 11
10 9 8 7 6 5 4 3 2 1
TB2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
+DC
D8 7
D4 6
D2 5
D1 4
ST4 3
ST3 2
ST2 1
ST1 0
-DC
POWER -
SUPPLY +
PLC

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RIBBON CABLE / P.C. BOARD DESIGNATIONS
(Use for test or special wiring only)
S12 TERMINATION “X” RIBBON WIRE DESIGNATION (P2)
13A 18 6D
2GND 19 3D
33B 20 5A
4GND 21 1C
5NU 22 NU
6+5V 23 5B
7NU 24 1D
8+5V 25 6B
93C 26 5C
10 4A 27 2A
I I 4B 28 6C
12 4C 29 5D
13 NU 30 2B
14 NU 31 NU
15 1A 32 6A
16 4D 33 2C
17 1B 34 2D
S12 BACK PRINTED CIRCUIT BOARD CONNECTOR (P 1)
We hope you will be pleased with our products. If you have any questions
concerning our warranty, repair, modification or returned goods process, please
contact your local KEP distributor or the KEP Customer Service Department.
Warranty
This product is warrantied against defects in materials and workmanship for a
period of one (1) year from the date of shipment to buyer.
The warranty is limited to repair or replacement of the defective unit at the option
of the manufacturer. This warranty is void if the product has been altered,
misused, dismantled, or otherwise abused.
ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, ARE EXCLUDED,
INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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