GE Fanuc PACSystems RX3i IC694ACC310 Protective Blank Slot Filler Module

Functional Purpose and Protective Benefits

The IC694ACC310 is a specialized hardware accessory designed to maintain the mechanical and environmental integrity of GE Fanuc PACSystems RX3i chassis. While often overlooked, the IC694ACC310 (Part Number: IC694ACC310) plays a critical role in system longevity by sealing unused backplane slots. This prevents the accumulation of conductive dust, metallic shavings, and moisture on sensitive backplane pins, which can lead to short circuits or signal degradation. Furthermore, installing these fillers ensures optimized airflow and vibration resistance within the rack assembly.

Comprehensive Technical Specifications

Detailed below are the physical and operational characteristics of the IC694ACC310 filler module:

• Compatibility: All PACSystems RX3i Universal, Expansion, and Remote Backplanes.

• Slot Footprint: Occupies a single (1) I/O slot.

• Electrical Load: Zero (0) mA; draws no power from the 5V or 24V backplane bus.

• Environmental Protection: Shields open connectors from moisture, dust, and airborne contaminants.

• Mechanical Stability: Enhances rack rigidity and prevents module vibration in high-impact environments.

• Installation: Supports "Hot Swapping" (Removal and insertion while the system is under power).

• Configuration: No software programming or hardware configuration required.

• Indicator Hardware: None (Passive module).

• Mass: Approximately 0.11 kg (0.25 lbs).

System Integration and Maintenance

The IC694ACC310 is universally compatible across the RX3i range, including 7, 12, and 16-slot standard baseplates, as well as 5 and 10-slot expansion baseplates. It is considered best practice by GE Fanuc engineers to populate every empty slot in a mission-critical PLC rack with an IC694ACC310 to ensure the system meets industrial EMI/RFI shielding expectations and stays within thermal design parameters.

Common Technical Inquiries

Does the filler module impact the I/O count or addressing of the PLC?No. The IC694ACC310 is a passive plastic and metal housing with no internal circuitry. It does not communicate with the CPU and does not consume any I/O points or memory addresses.

Is there a limit to how many filler modules I can use in one rack?There is no limit. You can use as many IC694ACC310 units as needed to cover all unpopulated slots in your RX3i system.

Can this be used with older Series 90-30 backplanes?Yes, because the RX3i IC694 series shares the same physical form factor as the legacy Series 90-30 I/O, this filler can be used to protect older IC693 baseplates as well.