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PCL-722 |
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144-bit Digital I/O Card
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Introduction
Applications
Features
Specifications
Ordering Information
Introduction
The PCL-722 is a full-size PC add-on card that offers 144 programmable
digital I/O lines divided into six main ports. Each port emulates the
operation of an 8255 Programmable Peripheral Interface (PPI) in mode 0,
but provides higher driving capacity than the 8255. Each port in turn
consists of three subsidiary 8-bit ports (A, B, C). You can individually
configure each of these 8-bit ports by software for input or output.
The PCL-722 provides an additional
read-back function which lets you monitor the digital output status by
taking readings directly from the output port.
Applications
- High-density mixed digital I/O
- Digital I/O control
- Industrial monitoring and control
- Interfacing with parallel I/O
devices
- Direct interfacing with Opto-22
compatible I/O module racks
Features
- 144 digital I/O lines
- Emulates 8255 PPI mode 0
- Buffered circuits for higher driving
capacity than the 8255 Interrupt handling
- Output status readback
- Pin-compatible with Opto-22
- I/O module racks
Specifications
- I/O lines: 144 (24
bits x 6 ports)
- Programming mode:
8255 PPI mode 0
- Interrupts: Bits 0
and 3 of port C can generate an interrupt to IRQ2, 3, 4, 5, 6 or 7
- Digital output:
Port A and Port B
Logic 0: 0.4 V max. @ 12 mA (sink)
Logic 1: 2.4 V min. @ 800 mA (source)
Port C
Logic 0: 0.5 V max. @ 24 mA (sink)
Logic 1: 2.0 V min. @ 15 mA (source) Digital input:
Logic 0: 0.8 V max.
Logic 1: 2.0 V min.
Transfer rate:
300 Kbytes/sec typical
500 Kbytes/sec max.
- Connectors:
Six 50-pin male ribbon-cable connectors. Pin assignments are
fully compatible with Opto-22 I/O module racks
- Dimensions: 13.2"
(L) x 3.9" (H) (334mm x 99mm)
- Power consumption:
+5 V @ 1.3 A typical , 1.8A max.
Ordering Information
- PCL-722
144-bit Digital I/O Card, utility disk and user's manual
- PCLD-782B
24/16-channel Opto-isolated Digital Input Board
- PCLD-785B
24/16-channel Relay Output Board - PCLS-DLL-DIO
$FREE
Window 3.1 DLL
Driver
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