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The GE Fanuc IC695HSC308, also cataloged as the IC695HSC308 High-speed counter module, operates as a dedicated hardware component for high-speed counting, totalizing, and motion control within PACSystems RX3i platforms. The module interfaces directly with rapid-switching field sensors up to a frequency of 1.5 MHz, processing pulse inputs and driving local discrete outputs without requiring central processing unit intervention.

Hardware Specifications

Parameter Specification
Model IC695HSC308
Brand GE Fanuc Emerson
Origin United States
Weight 0.40 kg (0.88 lbs)
Dimensions Standard single-slot RX3i chassis footprint
Operating Temp 0 to 60 deg C
Power Consumption 561 mA maximum @ 3.3 VDC, 94 mA maximum @ 5 VDC
Counter Architecture 8 counters, 16 high-speed inputs, 14 output channels
Counting Range -2147483648 to 2147483647
Maximum Count Rate 1.5 MHz
Input Voltage Ranges 5 VDC nominal (4.7 to 5.5 VDC); 12 to 24 VDC nominal (10 to 26.4 VDC)
Output Voltage Range 4.7 to 40 VDC
Output Current Rating 1.5 A maximum per channel; 10.5 A maximum per module
Oscillator Drift Over Time +/- 5 ppm/year maximum

Backplane Bus Communication Velocity & I/O Density Scaling

The IC697/IC695 internal logic structure interfaces via the universal backplane to achieve optimal communication velocity data transfers without requiring additional backplane bus communication velocity licences. Designed to manage dynamic I/O density scaling profiles, the hardware features configurable I/O interrupts that bypass typical bus latencies. The internal flash memory is completely upgradable via programming tools, ensuring long-term firmware flash compatibility with updated CPU modules while sustaining automated module fault reporting.

Frequently Asked Questions

Q: Does the IC695HSC308 support removal and replacement operations while the backplane is energized?

A: Yes. The module fully supports Removal and Insertion Under Power (RIUP) and includes diagnostic detection circuits that monitor the connection status of the external terminal block assembly.

Q: What is the switching response delay of the local discrete output channels?

A: At a full 1.5 A load, the hardware turn-on time delay (off to on) is 125 microseconds. The turn-off time delay (on to off) is 85 microseconds under identical electrical load conditions.

Q: How many independent setpoints can a single counter channel govern?

A: Each counter on the module can control up to 4 distinct setpoints. These setpoints feature user-defined turn-on and turn-off threshold values mapped directly to the local physical outputs.

Field Installation Guidelines

  • Terminal Block Compatibility: Secure electrical field wiring using compatible terminal blocks, including Box-style (IC694TBB032), Extended Box-style (IC694TBB132), Spring-style (IC694TBS032), or Extended Spring-style (IC694TBS132) blocks.
  • Input Signal Shielding: Route high-frequency pulse lines up to 1.5 MHz via twisted-pair shielded instrumentation cables to minimize ambient electromagnetic interference. Terminate the cable shields at the designated chassis grounding rail.
  • Electrical Protection Limits: Ensure peak field input voltages do not exceed the absolute limit of 35 VDC to prevent internal input impedance degradation.
  • Wiring Verification: Confirm auxiliary field power polarity prior to energizing the circuit. The outputs contain reverse polarity protection and are protected from reverse wiring faults.

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