Product Overview

The GE Fanuc IC698RMX016 is a Redundancy Memory Exchange (RMX) module for PACSystems RX7i PLC platforms. It is used in high-availability control architectures to exchange critical data between CPUs in a redundant system. By participating in a reflective-memory style network over fiber, the RMX module helps keep redundant controllers synchronized, supporting continuous operation in applications where downtime is not acceptable.

The module is typically installed in RX7i racks used for redundancy systems and receives operating parameters directly from the host CPU, reducing commissioning time and configuration errors.

Key Technical Characteristics

• Product family: PACSystems RX7i

• Module type: Redundancy Memory Exchange (RMX) module

• Memory capacity: 16 MB SDRAM

• Backplane supply: 5 VDC

• Current draw: 1.8 A (from backplane)

• Network capacity: Up to 256 nodes (system dependent)

• Data transfer: Dynamic packet sizes typically 4–64 bytes

• Fiber interface: LC-type fiber optic connector (IEC 61754-20)

• Optical performance (connector spec):

• Insertion loss: ≤ 0.35 dB

• Return loss: ≥ 30 dB (typical reference value)

• Controls and indication: Status LEDs and a guarded toggle switch for role change

• Operating temperature: -20°C to +85°C

• Software/firmware note: Requires PACSystems firmware 2.00 or later and compatible Logic Developer environment

Physical and commercial data

• Dimensions: 2.1 × 18 × 29.2 cm

• Weight: 0.30 kg

• Condition: Brand New

• Availability: In Stock

• MOQ: 1

• Origin: USA

• Product status: Active

Operational Use Cases

• Redundant PLC systems requiring continuous controller synchronization

• High-availability control for power generation, oil and gas, and continuous process lines

• Critical infrastructure automation where coordinated CPU switchover is required

• Systems using fiber-based memory exchange to reduce electrical noise sensitivity

• Modernization projects retaining RX7i redundancy architectures with like-for-like spares