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The GE Fanuc IC695RMX128, also cataloged as the IC695RMX128 Redundancy Memory Module, operates as a dedicated hardware component for high-speed deterministic data synchronization within redundant RX3i PacSystem platforms.

Hardware Specifications

Parameter Specification
Model IC695RMX128
Brand GE Fanuc Emerson
Origin United States
Weight 1.13 kg (2.50 lbs)
Dimensions Single slot width
Operating Temp Industry standard 0 to 60 deg C (ambient)
Power Consumption 580 mA at 3.3 VDC / 220 mA at 5 VDC
Reflective Memory Capacity 128 MB SDRAM
Physical Interface Single-mode Fiber-optic LC type
Network Transmission Speed 2.12 Gbaud
Maximum Network Nodes Up to 256 nodes per network
Cable Ferrule Zirconium ceramic
Maximum Insertion Loss 0.35 dB
Hot Insertion and Removal Supported (Hot Insertion capability)
Configuration Method Programming software (no hardware jumpers or DIP switches)

Profinet / EtherNet/IP Deterministic Networks and I/O Density Scaling

The module functions as a hardware-synchronized point-to-point node in a redundant central processing unit loop, bypassing standard backplane bus communication velocity constraints to maintain zero-latency tracking between primary and secondary controllers. It routes internal tracking data across deterministic networks via dedicated 2.12 Gbaud fiber paths, enabling instantaneous state transfer during broad I/O density scaling. Network monitoring routines execute via integrated hardware-level network error detection circuits, preserving total system synchronization without requiring firmware flash compatibility modifications on the adjacent processing racks.

Frequently Asked Questions

Q: Does the IC695RMX128 module support hot-swapping while the local rack is energized?

A: Yes. The module supports hot insertion and removal, allowing field technicians to replace a faulty unit without interrupting power to the primary controller or degrading active I/O loop processing execution.

Q: Can this module be configured via hardware switches for node allocation?

A: No. All node assignments and functional parameters are defined entirely via central programming software. The physical board contains no jumpers or DIP switches to minimize mechanical failures and unauthorized field modification.

Field Installation Guidelines

  1. Insert the module into any available universal backplane slot within the RX3i chassis while checking that the upper and lower plastic locking tabs lock firmly into place.
  2. Clean the fiber optic patches and verify the LC-type single-mode connector is fully engaged with the zirconium ceramic ferrule to maintain insertion loss below the 0.35 dB maximum threshold.
  3. Wire the primary and corresponding secondary modules together using high-speed fiber-optic cables configured in a closed 2-node ring topology.
  4. Prevent small radius bends in the fiber-optic cabling; maintain the manufacturer-specified minimum bend radius inside wire ducts to prevent signal attenuation and connection failure.


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