32-channel Isolated Digital I/O Card

Introduction

The PCL-730 offers 32 isolated digital I/O channels (16 DI and 16 DO) and 32 TTL digital I/O channels (16 DI and 16 DO). Its isolated I/O channels provide 2,500 V of protection. The PCL-730 offers one PC interrupt with jumper-selectable IRQ. Each I/O channel corresponds to a bit in a PC I/O port. This makes the PCL-730 very easy to program.

Applications

• Industrial On/Off control
• Contact closure monitoring
• Switch status sensing BCD interfacing
• Digital I/O control
• Industrial and lab automation

Features

• 32 isolated DIO channels (16 inputs and 16 outputs)
• 32 TTL-level DIO channels (16 inputs and 16 outputs)
• High output driving capacity
• High-voltage isolation on isolated I/O channels (2,500 VDC)
• Interrupt capacity
• Four separate 20-pin connectors for isolated input and output channels
• D-type connectors for isolated input and output channels
• High sink current on isolated output channels (200 mA/channel)
• Reverse voltage protection for isolated input channels (up to 24 VDC)

Specifications

Digital Input

• 16 optically-isolated inputs
• Input voltage: 5 to 24 VDC
• Input resistance: 1.2 k ohms @ 0.5 W
• Isolation voltage: 2,500 VDC
• Throughput: 10 KHz max.

16 TTL-level inputs

• Input voltage:
  Low: 0.8 V max.
  High: 2.0 V min.
• Input load:
  Low: 0.4 mA max. @ 0.5 V
  High: 0.05 mA max. @ 2.7 V
• Throughput: 30 KHz typical.

Digital Output

16 optically-isolated outputs

• Output voltage: Open collector 5 to 40 VDC
• Sink current: 200 mA max. I
• Isolation voltage: 2,500 VDC
• Throughput: 10 KHz max.

16 TTL-level outputs

• Output voltage:
  Low: Sink 8 mA at 0.5 V max.
  High: Source 0.4 mA at 2.4 V min.

Interrupt Source

• Channels 0 and 1 of Isolated DI port or
• Channels 0 and 1 of TTL DI port

Ordering Information

PCL-730

32-channel Isolated Digital I/O Card

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