IC698CMX016 – Control Memory Exchange Module
IC698CMX016 is a Control Memory Exchange Module for the PACSystem RX7i platform (GE Fanuc, now Emerson Automation). It enables deterministic, high-speed data sharing among PLCs and compatible devices using reflective memory technology over fiber-optic networks. The module is CPU-independent and mounts in a single RX7i rack slot.
Key Features & Technical Data
- Memory: 16 MB SDRAM with parity (reflective memory).
- Fiber-Optic Port: Multi-mode LC connector (TX/RX), 2.12 Gbaud transmission.
- Transfer Rate: 43 MB/s (4-byte packets) to 174 MB/s (64-byte packets).
- Node Capacity: Up to 256 nodes per network.
- Current Draw: 1.8 A @ +5V DC (from backplane).
- Packet Size: Dynamic (4–64 bytes), auto-controlled.
- Distance: Max 300 m (984 ft) over multimode fiber.
- Compatibility: VMIC 5565 reflective memory devices.
- LED Indicators: OK, CONFIG, OWN DATA, SIGNAL DETECT.
- Dimensions: 6.299” x 9.187” (single-slot).
- Temperature Range: -20°C to +85°C.
Installation & Configuration
- Installs in any RX7i rack slot – no CPU processing required.
- Requires RX7i CPU with firmware 2.00 or higher.
- Configure using Proficy Machine Edition – Logic Developer PLC v4.5 or later.
- Use multi-mode fiber cables with LC connectors (IEC 61754-20).
- Supports redundant transfer mode for critical applications.
Typical Applications & Compatible Systems
- High-speed data exchange between multiple RX7i PLCs.
- Integration with VMIC 5565 reflective memory nodes.
- Suitable for motion control, simulation, and distributed I/O.
- Works with Emerson RX7i, GE Fanuc PACSystems, and legacy GE IP platforms.
Oiltech Controls Insight – What We Recommend
- Best for: Systems requiring deterministic data updates (e.g., rolling mills, test cells).
- Pair with: VMIC 5565 for multi-node networks – tested in our lab.
- Check firmware: Ensure CPU release 2.00+ before installation.
- Use quality fiber: Insertion loss < 0.35 dB; return loss ≥ -30 dB for stable links.
- Redundancy: Enable redundant transfer mode for zero-data-loss failover.
Why Buy From Oiltech Controls?
- Over 15 years in industrial automation spare parts.
- Global shipping – FedEx, UPS, DHL (24–28h dispatch).
- Every module is tested (surplus or refurbished) before shipment.
- 12-month warranty – hassle-free replacement.
- Technical verification prior to dispatch – we check configuration compatibility.
- We support obsolete control systems – including legacy GE IP.
Frequently Asked Questions (FAQ) – Expert Advice
- Q: Can I mix IC698CMX016 with non-GE reflective memory devices?
Yes, it is network-compatible with the VMIC 5565 family. We advise testing with your specific device – our team can verify compatibility before shipping. - Q: What happens if the fiber link fails?
The module supports redundant transfer mode. You can configure dual loops for automatic failover – we recommend this for critical processes. - Q: How do I choose between 4-byte and 64-byte packet sizes?
Dynamic packet sizing is automatic. For maximum throughput, use 64-byte packets (174 MB/s). For low-latency small data, 4-byte packets (43 MB/s) work best – we can help you decide based on your application. - Q: Is this module compatible with older RX7i CPUs?
Requires CPU firmware 2.00 or later. If you have an older system, contact us – we can suggest upgrade paths or alternative modules. - Q: What fiber optic cable should I use?
Use multi-mode fiber with LC connectors, insertion loss ≤ 0.35 dB, and max distance 300 m. We stock pre-tested cables for plug-and-play setup.
Contact us: info@oiltechcontrols.com
or +86 158 8020 0923 (WhatsApp).
Packaging: Module only (rack, cables, and power supply sold separately).
Warranty: 12 months from invoice date against defects.
Shipping: FedEx, UPS, DHL – worldwide, with tracking.
Copyright © 2026 Oiltech Controls Limited. https://www.oiltechcontrols.com/ All rights reserved.










Reviews
There are no reviews yet.