Description
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Need to secure or maintain the GE Fanuc / Emerson IC698RMX016 Redundant Memory Exchange module for PACSystems RX7i? Get core specs, data synchronization insights, and strategic stocking recommendations.
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In high-availability industrial configurations, processing synchronization between primary and secondary control systems must occur with deterministic speed. The Emerson / GE Fanuc PACSystems RX7i IC698RMX016 is a dedicated Redundant Memory Exchange (RMX) module engineered to manage high-speed data mirroring across dual-CPU chassis. Utilizing a dedicated fiber-optic linkage, this VME64-compliant card transfers critical process variables, timers, and register data blocks at 100 Mbps, guaranteeing bumpless failovers if the primary processor encounters a hardware fault.
Technical Specification Snapshot
Before checking a replacement module into active inventory or installing it into a live RX7i rack, verify these mechanical and electronic operating limits:
| Parameter | Specification Value |
| Model Code | IC698RMX016 (Includes variations like IC698RMX016-ED) |
| Product Family | PACSystems RX7i (Originally GE Fanuc / Intelligent Platforms, now Emerson) |
| Module Type | Redundant Memory Exchange (RMX) Module |
| Memory Capacity | 16 MB dedicated high-speed reflective memory |
| Data Transfer Rate | 100 Mbps (continuous deterministic mirroring) |
| Interface Port | Fiber-optic interface (typically multi-mode SC or LC infrastructure) |
| Bus Compatibility | VME64 Standard (Standard RX7i rack form factor) |
| Configuration Software | Proficy Machine Edition (PME) |
| Operating Temperature | 0 to 60 °C (32 to 140 °F) |
| Condition Availability | Legacy New Surplus, Certified Refurbished, or Repaired |
Sparing & Operational Strategy
Applying a standard ABC inventory framework classifies the IC698RMX016 as a Class A critical asset. Although it does not directly drive physical I/O terminals, its failure fully disrupts the CPU redundancy loop. Without an operational RMX module, the system drops into non-redundant mode, stripping away the infrastructure’s fault tolerance and rendering your plant vulnerable to a single-point-of-failure shutdown.
Because the legacy PACSystems RX7i series has transitioned out of active production, relying on standard distributor channels introduces extreme lead time variability. For critical infrastructure or continuous manufacturing processes running redundant RX7i systems, maintain a strict 1:1 on-site safety stock framework for this module.
Not Recommended For:
Do not mix the IC698RMX016 with standard Series 90-30 or RX3i racks. This module is architected strictly for the wider, VME64-based chassis footprint native to the PACSystems RX7i line.
