PCI-7296/7248/7224
Opto-22 Compatible
96/48/24-CH DIO Cards
Features
-
32-bit PCI-Bus, Plug and Play
-
96/48/24 TTL/DTL compatible digital I/O
lines
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Emulates 4/2/1 industry standard 8255
PPI (mode 0)
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Buffered circuits for higher driving capacity
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Direct interface with OPTO-22 compatible
I/O modules
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Output port status read back
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On board 8254 timer/counter chip
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A 32-bit timer to generate watchdog timer
interrupt
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A 16-bit event counter to generate event
interrupt
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Programmable interrupt source
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Dual interrupt system
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Provides 12V and 5V power supply to OPTO-22
connectors
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On board resettable fuses to protect power
supply
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Compact size (suitable for any size chassis)
Introduction
The PCI-7296, PCI-7248 and PCI-7224 are high
density parallel digital I/O boards with 96/48/24 I/O channels. The header
connectors are fully compatible with industry Opto-22 standard. Therefore,
PCI-7296/48/24 can fully utilize the Opto-22 external devices used in the
ISA age. The PCI plug and play feature makes these boards easier to install
than any other ISA bus cards. It is time to get into the PCI age for new
industrial applications.
PCI Bus Plug and Play
The PCI-7248/96/24 uses a PCI controller
ASIC to interface with the PCI bus. The ASIC fully implements the PCI local
bus specification Rev 2.1. All bus relative configurations, such as base
memory address and interrupt assignment, are automatically con-trolled
by hardware and PCI BIOS. It does not need user interaction and pre-study
for PC configurations. This reduces the burden of searching for conflict-free
configurations. Hence, it saves more time than using
the ISA bus cards.
Parallel Digital I/O
On-board circuits emulate the industry
standard 8255 programmable peripheral interface (PPI) chips. The PCI-7296/48/24
provides 4/2/1 PPI chips. Each PPI offers three 8 bit ports; PA, PB, and
PC. PC is sub-divided into 2 nibble-wide (4-bit) ports. Each digital channel
has an individual pin on the OPTO-22 connector. All 96/48/24 digital I/O channels
can sink 24mA for high driving capacity applications.
Programmable Timer/Counter
PCI-7296/48/24 each has a programmable
timer counter for generating periodic interrupts to the host processor.
The timer/counter chip is 82C54, which includes three 16-bit counters.
One counter is used as an event counter
for counting events coming from one input channel. The other two timers
are cascaded together making a 32-bit timer which can control the rate
of interrupt generation.
Dual Internal System
The PCI-7296/48/24 can accept dual interrupt
sources. One source is from I/O port or the event counter, and the other
source is from I/O port or the timer chip. The dual interrupt configuration
is very flexible for any industrial application. For users who do not want
use any interrupt, a software utility is used to disable the interrupt
so that the PCI plug & play BIOS will not assign any interrupt vector
for this card.
Specifications
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I/O channels:
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96 digital I/O for PCI-7296
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48 digital I/O for PCI-7248
-
24 digital I/O for PCI-7224
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I/O characteristics: TTL/DTL compatible
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Data transfer modes: Interrupt, Programmed
I/O
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Input signal
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Logic high: 2.0V to 5.25V
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Logic low: 0.0V to 0.80V
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Logic high current: 22.0 ŁgA
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Logic low current: 0.2 mA
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Output signal (Port A & B)
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Logic high: 2.4V min.
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Logic low: 0.5V max.
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Logic high current: 2.6 mA
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Logic low current: 24.0mA
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Output signal (Port C)
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Logic high: 2.4V min.
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Logic low: 0.4V max.
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Logic high current: 15.0 mA
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Logic low current: 24.0 mA
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Operating temperature: 0° ~ 60°C
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Storage temperature: -20° ~ 80°C
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Humidity: 5 ~ 95%, non-condensing
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I/O connector: 50-pin male ribbon connector
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Bus interface: 32 bits slave PCI
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Transfer rate: 500 K bytes/sec typical
-
Power requirement (without external devices)
- PCI-7296
+5V @ 860 mA (typical)
- PCI-7248
+5V @ 500 mA (typical)
- PCI-7224
+5V @ 330 mA (typical)
- PCB dimension:
- PCI-7248/7224: 148mm x 102mm
- PCI-7296: 166mm x 102mm
Termination Boards
Ordering Information
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PCI-7296
96 Channel Digital I/O Card
-
PCI-7248
48 Channel Digital I/O Card
-
PCI-7224
24 Channel Digital I/O Card
Note1: The above
products are shipped with software development kit for DOS/WIn-95/98/NT/2000,
PCIS-LVIEW and PCIS-VEE.)
Note2: The PCI-7224 is the 24 channels
version of PCI-7248. The software of PCI-7224 is exactly
the same as PCI-7248.
View Manual
View Specifications from Catalog
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