48-bit Digital I/O Card

Introduction

The PCL-731 offers 48 programmable digital I/O lines, respectively. Each port emulates the operation of an 8255 Programmable Peripheral Interface (PPI) chip in mode 0, but provides a higher driving capacity than the 8255.

The DI/O ports are combined into six 8-bit ports. You can configure each port individually by software for either input or output. The card can directly interface to SSR module carrier boards through a 50-pin Opto-22 compatible connector. The PCL-731 is a low-cost alternative to the PCL-722. Like the PCL-722 they provide a readback feature which lets you monitor the status of the output by reading back the output port directly.

• Digital I/O control
• Industrial monitoring and control
• Interfacing with parallel I/O devices
• Interfacing with Opto-22 compatible I/O module racks

• 48 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

• I/O lines: 48
• Programming mode: 8255 PPI mode 0
• Interrupt: Bit 0 of one port can generate an interrupt to IRQ 2~15
• Interrupt triggering: Rising or falling edge triggering, jumper-selectable
• Digital output:
  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.
• Connectors: 50-pin male ribbon-cable connectors
• Dimensions: 7.3" (L) x 3.9" (H) (185 mm x 100 mm)
• Power consumption:
  5 V @ 0.5 A typical
  5 V @ 0.8 A max.

PCL-731

48-Channel Programmable Digital I/O Card (50 pin)

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Windows DLL Driver