General Description - Addi-Data ADDINUM PA 1500 Technical Description

Functions of the board
9.2

General description

The board PA 1500 is intended for parallel input/output for digital signals
in 24 V industrial environment.
The peripheral and the system have a simultaneous optical isolation.
The board offers:
16 digital inputs: 14 are interruptible.
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3 counters (or timers): programmable by software
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1 timer: can be used as a watchdog for the outputs.
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16 digital outputs are available:
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short-circuit current,
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protection against overtemperature,
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small On resistor,
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wide supply voltage range,
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the outputs are switched off if the voltage drops below the limit value (5 V).
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The base address is set with a 10-pin block of DIP switches and jumper J2.
Decoding occurs on the 64 KB I/O address range of the PC.
The board requires 8 I/O addresses within the I/O address range of the PC.
Available interrupt lines:
IRQ3, IRQ5 on XT
IRQ10, IRQ11, IRQ12, IRQ14, IRQ15 on AT
The 16-bit data bus can be switched over to 8-bit data bus.
EMC: design in accordance with CE regulations.
WARNING!
Do not operate the board simultaneously in several modes. Otherwise you
may damage the board, PC and/or the peripheral.
Make sure to set only the jumpers required for the respective functions.
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PA 1500