DM6854HR
Isolated Digital I/O dataModule®
Isolated Digital I/O Module
for Industrial Control Applications

Operating Temperature -40° to +85°C

DM6854HR Isolated Digital I/O dataModule®

Rugged IDAN™ Configuration

Features:

• Isolated Inputs
  • 8 Opto-isolated digital inputs with jumper selected range
  • +5V typical input range
    • On at 2.4 Volts
    • Maximum input 15 Volts
  • +12V typical input range
    • On at 7.9 Volts
    • Maximum input 36 Volts
  • +24V typical input range
    • On at 14 Volts
    • Maximum input 50 Volts
  • Custom settings available
  • Reverse-polarity protection
  • Masking for interrupts
  • 1500 Vrms isolation
• Isolated Outputs
  • 4 Opto-isolated open-collector digital outputs
  • Maximum output current: 100mA (sink)
  • Maximum output voltage: 30V
  • 1500 Vrms isolation
• Non-Isolated I/O
  • 24 non-isolated digital I/O lines
  • 8255 compatible
  • Three 8-bit ports
  • Jumper selectable pull-up/pull-down resistors for each port
• Connectors
  • Isolated Inputs and Outputs:
    • -H: Standard 48-pin 0.1" DIL header
    • -S: 24-socket screw terminal
  • Non-isolated I/O: Standard 50 position 0.1" DIL header

Description:

The Opto-isolated digital inputs also have programmable interrupt and strobe functions. Bits can be masked and inverted to generate a hardware interrupt and an external strobe on an output connector, relieving the host PC from polling the input port. This function is extremely useful when monitoring for a specific condition on one or any of the inputs.

The DM6854HR also offers general purpose non-isolated digital I/O on 24 digital I/O lines. These can be used to drive LEDs or LCD character displays, read button or switch inputs, etc. The I/O lines are 8255 compatible and are grouped into three ports. Each port has a jumper for an optional pull-up or pull-down resistor network.

Two I/O connectors are used. Non-isolated digital I/O is handled by a 50 pin header on the right side of the board. Isolated digital inputs and outputs can either use discrete, screw terminal wire connectors or a DIL header for flat cable interfacing.

Software:

Physical Attributes:

• Dimensions: 90.17 mm L x 95.89 mm W (3.550 in L x 3.775 in W)
• Weight: Approximately 0.15 Kg (0.34 lbs.)
• Operating Temperature: -40° to +85°C: 90% humidity non-condensing
• Storage Temperature: -55° to +125 °C
• Power requirements:   0.85W  @ 5 VDC typical

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