The GE Fanuc IC695RMX128CA-AC is a high-performance Redundancy Memory Xchange (RMX) module from the PACSystems RX3i series. It is specifically designed to facilitate high-speed data synchronization between primary and secondary CPUs in a redundant system. By utilizing fiber optic technology, this module ensures that the backup controller is always updated with the latest process data, allowing for a seamless “bumpless” transfer of control in the event of a primary CPU failure. The “-AC” suffix indicates a conformal-coated version, providing superior protection against harsh environmental conditions.
Product Specifications
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Model Number: IC695RMX128CA-AC
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Product Series: PACSystems RX3i
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Module Type: Redundancy Memory Xchange (RMX)
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Dimensions: 140 mm x 35 mm x 110 mm
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Weight: 0.38 kg
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Country of Origin: USA
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Memory Capacity: 128 MB of shared memory
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Link Speed: 2.12 Gbit/sec
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Fiber Optic Connection: Multimode LC connectors
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Maximum Distance: Up to 300 meters using compatible fiber cables
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Protection: Conformal Coated (for corrosive/humid environments)
Application Fields
This module is a critical component for mission-critical automation where downtime is not an option. Key application fields include water and wastewater treatment, power generation, chemical processing, and large-scale manufacturing. It is used in RX3i redundancy racks to synchronize the state of the controllers, ensuring that safety-critical processes—such as turbine control or emergency shutdown sequences—remain active and synchronized across redundant hardware pairs.
Product Instructions
The IC695RMX128CA-AC must be installed in a standard RX3i Universal Backplane (IC695CHS007/012/016). It is typically placed in a slot adjacent to the CPU or in a designated redundancy slot. Connection between the primary and secondary RMX modules is made via a high-quality multimode fiber optic patch cable. Ensure the LC connectors are free of dust before insertion. Configuration of the redundancy parameters, including the synchronization of I/O and register data, is performed using GE’s Proficy Machine Edition (PME) software. Because this is a conformal-coated module, it is suitable for installation in cabinets located in high-humidity or mildly corrosive areas.
FAQ: Common Questions and Answers
Q: Can I mix an IC695RMX128 with a non-redundant CPU? A: While the hardware will fit, the RMX module is specifically intended for use with Redundancy-capable CPUs (like the IC695CRU320) to perform its primary function of data synchronization.
Q: What does the “CA” in the part number signify? A: The “CA” designation indicates that the module features conformal coating, a thin polymeric film that protects the electronic circuits from moisture, dust, and chemicals.
Q: Is it possible to use single-mode fiber with this module? A: The standard IC695RMX128CA-AC is designed for multimode fiber. If single-mode fiber is required for longer distances, specialized SFP transceivers or converters must be used, though this is not the standard configuration for this part.
Find comprehensive technical parameters and ordering details for the GE Fanuc IC695RMX128CA-AC to enhance your system’s reliability.
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