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03 April 2008

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Digital Indicators PDF Download Print This Page

BCD Indicators

GUIDE TO ADDA B.C.D
ADDA B.C.D. INDICATORS are available in DIN panel mount (24x48 & 48x96), and also in large digit (100mm) wall mount.

The ADDA SYSTEMS range of B.C.D. instruments has been specifically designed to provide easy interfacing to Programmable Logic Controllers. Two alternate input drive variations are available:

1 - Direct Drive with four Binary Coded Decimal inputs for each digit. This allows for easy programming, but requires 16 P.L.C. outputs.

2 - Multiplexed Drive with four common Binary Coded Decimal inputs and one input for each digit to control the latching. Thus, only eight P.L.C. outputs are required for the first panel meter and four additional outputs for each subsequent device. (Multiplexing is by digit.) For large systems other more efficient multiplexing schemes are available.

As accessories for the ribbon cable versions we also offer 10 & 26 way D.I.N. Omega Rail Ribbon Cable to Terminal transition boards and Ribbon Cable assemblies.

To "special order" ADDA SYSTEMS can also supply these units with 5V, 12V, 15V or 24V supply voltage and logic levels.
 10mm Digit  Bezel:  24 x 48 mm
 Cut-out :  21.5x 44 mm
   
24V DC DISPLAY, 24V POSITIVE LOGIC, DIRECT OR MULTIPLEXED INPUTS, TERMINAL OR RIBBON CABLE OUTPUTS, MULTI-INSTRUMENT MULTIPLEXED SCHEMES AVAILABLE.
ABD14RI24D PDF: Wiring Schedule (140k)


GROUP CONNECTION OF MULTIPLE INDICATORS VIA MUX JUNCTION BOARDS MULTIPLEXING BY INSTRUMENT

THE NUMBER OF INDICATORS IS ONLY LIMITED BY THE SWITCHING CAPACITY OF THE PLC OUTPUTS


 B.C.D. METER DRIVER BOARDS   POSITIVE LOGIC RIBBON
TO TERMINAL COMMON
 
VOLTAGES APPLIED TO INPUTS

LOGIC "1" HIGH GUARANTEED MINIMUM INPUT VOLTAGE 20.6V
TYPICAL MINIMUM INPUT VOLTAGE 15.5V ABSOLUTE MAXIMUM INPUT VOLTAGE 28.5V

LOGIC "0" HIGH GUARANTEED MINIMUM INPUT VOLTAGE 20.6V
TYPICAL MINIMUM INPUT VOLTAGE 15.5V

BCD INDICATORS
 20mm Digit  DIN:  48 x 96mm
 Cut-out :  45 x 92 mm
 
24V DC DISPLAY, 24V POSITIVE LOGIC, DIRECT OR MULTIPLEXED INPUTS, TERMINAL OR RIBBON CABLE OUTPUTS, MULTI-INSTRUMENT MULTIPLEXED SCHEMES AVAILABLE.
  PART No. 1 Digit 2 Digit 3 Digit 4 Digit
Direct drive
ribbon
ABD21DR
24V
ABD22DR
24V
ABD23DR
24V
ABD24DR
24V
Direct drive
terminals
ABD21DT
24V
ABD22DT
24V
ABD23DT
24V
ABD24DT
24V
multiplex
ribbon
ABD21MR
24V
ABD22MR
24V
ABD23MR
24V
ABD24MR
24V
multiplex
terminals
ABD21MT
24V
ABD22MT
24V
ABD23MT
24V
ABD24MT
24V


      SPECIAL SPLIT DISPLAY
(OPTIONAL SILKSCREENED TEXT)
     
     
 38mm Digit  DIN     :  48 x 96 mm
 Cut-out :  45 x 92 mm
   
  ABD14624D    
These meters have been designed to be used with programmable logic controllers and function in the same manner as the four digit BCD meters in our range. The case is a standard DIN 48 * 96 case and termination is provided with removable terminals on the rear of the unit. High brightness red 14mm led characters are used for the display. The units are available as standard with 24V logic and supply voltage level and special voltages can be supplied on special order. Can be cascaded to save PLC output lines.



We also do a 36x72mm BCD Indicator,
Information not available at time of printing.