IC695HSC308 | GE Fanuc | 8-Channe Counter Module

Description

The IC695HSC308 is an 8-channel, high-speed counter module for the GE Fanuc (Emerson) PACSystems RX3i series. It is designed to process high-speed pulse signals from encoders, flow meters, and sensors that exceed the standard digital input scan rates of a PLC. The "-DA" suffix typically denotes a "Direct Availability" or specialized revision often used in high-reliability industrial applications.

Specifications

• Part Number: IC695HSC308 (Revision -DA)
  
• Series: PACSystems RX3i
• Module Type: High-Speed Counter (HSC)
• Channels: 8 independent 32-bit counters.
  
• Input Types: 5V Differential (RS-422), 5V Single-Ended, or 12V/24V Single-Ended.
• Counting Rate: * Single-Ended: Up to 300 kHz.
• Differential: Up to 1.5 MHz.
  
• Onboard Outputs: 8 Positive Logic (Source) outputs for high-speed "Window" or "Setpoint" comparisons.
• Backplane Interface: PCI-based RX3i Universal Backplane (requires an IC695-prefix rack).
• Internal Power Consumption: 500 mA @ 3.3 VDC; 300 mA @ 5 VDC.

Features

• High-Resolution Tracking: Each of the 8 counters can be configured for A/B Quadrature, Up/Down counting, or Pulse/Direction modes.
• Direct Control Outputs: Features "Output Proximity" logic where the onboard outputs can trigger based on count values independently of the PLC CPU scan, enabling sub-millisecond response times.
• Flexible Scaling: Supports accumulation, frequency measurement (velocity), and period measurement (time between pulses) for versatile motion and flow applications.
• Z-Channel Support: Each counter includes a Home (Z-marker) input for precise axis referencing and overflow/underflow detection.
• Advanced Filtering: User-configurable digital filters help eliminate contact bounce and electrical noise on signal lines.
• Diagnostic LEDs: Includes Module OK, Config OK, and individual I/O Status LEDs for rapid hardware health verification.