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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. |
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10mm Digit
Bezel:
24 x 48 mm Cut-out : 21.5x 44 mm |
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24V DC DISPLAY, 24V POSITIVE
LOGIC, DIRECT OR MULTIPLEXED INPUTS, TERMINAL OR RIBBON CABLE OUTPUTS,
MULTI-INSTRUMENT MULTIPLEXED SCHEMES AVAILABLE. |
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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 ![]() |
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| B.C.D. METER DRIVER BOARDS |
POSITIVE LOGIC RIBBON TO TERMINAL COMMON |
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VOLTAGES
APPLIED TO INPUTSLOGIC "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 |
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| BCD INDICATORS | |||||||||||||||||||||||||||
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20mm Digit
DIN: 48 x 96mm Cut-out : 45 x 92 mm |
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| 24V DC DISPLAY, 24V POSITIVE LOGIC,
DIRECT
OR MULTIPLEXED INPUTS, TERMINAL OR RIBBON CABLE OUTPUTS,
MULTI-INSTRUMENT MULTIPLEXED SCHEMES AVAILABLE. |
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![]() SPECIAL SPLIT DISPLAY (OPTIONAL SILKSCREENED TEXT) |
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38mm Digit DIN
: 48 x 96 mm Cut-out : 45 x 92 mm |
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| 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.
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VOLTAGES
APPLIED TO INPUTS

