Digital Inputs; General Description; Fig. 8-3: Block Diagram Of The Apci-2032 - Addi-Data APCI-2032 Technical Description

APCI-1032, APCI-1564 and APCI-2032
Vcc-diagnostic and
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32 digital outputs
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watchdog
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Vcc-diagnostic and
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EMC: design in accordance with CE regulations.
8.2

Digital inputs

8.2.1 General description

The inputs acquire the status of external signals: the input information is stored through
software as a value in the memory cell of the PC. This value is converted to give the
status of the input signals.
24 V isolated inputs (IEC1131-2):
logic "1" corresponds to an input voltage > 19 V
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logic "0" corresponds to an input voltage < 14 V.
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WARNING for the APCI-1564!
When all inputs are connected, the temperature of the printed
circuit card increases.
Make sure that the maximum supply voltage of 26 V is not exceeded. Please
consider the given Limit values. (See 0 Digital inputs)
12 V isolated inputs (IEC1131-2):
logic "1" corresponds to an input voltage > 8 V
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logic "0" corresponds to an input voltage < 6 V.
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5 V isolated inputs (IEC1131-2):
logic "1" corresponds to an input voltage > 3.3 V
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logic "0" corresponds to an input voltage < 2.7 V.
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44
ϑ -diagnostic: interruptible for the outputs

Fig. 8-3: Block diagram of the APCI-2032

ϑ -diagnostic: interruptible for the outputs
Functions of the board