Create a backup
Save the user program, register values and CPU configuration before opening the rack or disconnecting the existing battery-backed module.
Series Six Program and Register Storage
GE Fanuc IC600LX624 / IC600LX648 / IC600LX680 Combined Memory Modules
Battery-backed Series Six combined memory modules with 16K, 32K or 64K logic capacity and up to 16K register memory.
IC600LX624Combined logic/register/internal memory module
IC600LX648Combined logic/register/internal memory module
IC600LX680Combined logic/register/internal memory module
Product Description
IC600LX624, IC600LX648 and IC600LX680 are GE Fanuc Series Six combined memory modules. One board combines internal, register and logic-memory functions, reducing the number of separate memory boards required in a compatible CPU rack. The three catalog numbers are separated chiefly by logic and register capacity.
IC600LX624 provides 16K words of logic memory and 8K words of register memory. IC600LX648 increases those capacities to 32K logic and 16K register words. IC600LX680 provides the largest listed option in this group with 64K logic and 16K register words. All three are battery-backed CMOS assemblies and include battery-level and parity indications.
The module installs in CPU slot 4, immediately to the left of the Arithmetic Control module. Before installation, the lithium-manganese dioxide battery must be connected unless an approved external auxiliary backup battery is used. A current program, register data and configuration backup should exist before any memory module is removed.
Technical Specifications
| Specification | IC600LX624 | IC600LX648 | IC600LX680 |
|---|---|---|---|
| Brand | GE Fanuc | ||
| Product Type | Combined logic/register/internal memory module | ||
| Country | United States | ||
| System Family | Series Six / Series Six Plus | ||
| Logic Memory | 16K words | 32K words | 64K words |
| Register Memory | 8K words | 16K words | 16K words |
| Total Listed Memory | 24K words | 48K words | 80K words |
| Memory Technology | Battery-backed CMOS | ||
| CPU Slot | Slot 4, immediately left of Arithmetic Control | ||
| Indicators | Battery level and parity error | ||
| Backup Source | On-board lithium-manganese dioxide battery or approved external auxiliary backup | ||
| Rack Load | 24 units at +5 V and 1 unit at -12 V | ||
| Installation Requirement | Connect the battery before rack installation unless external backup is used | ||
Memory Capacity and System Role
Logic memory stores the controller program, while register memory retains application values used by the user logic.
IC600LX624 is the 16K/8K choice; IC600LX648 doubles logic capacity and register capacity; IC600LX680 doubles logic capacity again while retaining 16K registers.
The combined module also performs the internal-memory role required by the processor architecture, so substitution is based on CPU compatibility and capacity rather than physical fit alone.
Battery and parity indicators provide local evidence that should be checked before and after a planned memory transfer.
Installation and Data Retention
Prepare the battery
Seat the lithium battery in its clip and connect its cable to one battery connector unless the system uses an approved external backup source.
Install in slot 4
With rack power removed, insert the memory module immediately to the left of the Arithmetic Control module and fit the LOGIC MEMORY faceplate.
Initialize and verify
Clear expected start-up parity conditions using the documented CPU procedure, restore the program and confirm battery/parity indications before RUN.
Product FAQ
What is the capacity difference among IC600LX624, IC600LX648 and IC600LX680?
They provide 16K/8K, 32K/16K and 64K/16K logic/register words respectively.
Where are IC600LX624, IC600LX648 and IC600LX680 installed?
The combined memory module is installed in CPU slot 4 immediately to the left of the Arithmetic Control module.
Must the battery be connected before installing IC600LX624, IC600LX648 or IC600LX680?
Yes, unless an approved external auxiliary backup battery is used. The manual ships the module with its battery connector disconnected.
What should be backed up before replacing IC600LX624, IC600LX648 or IC600LX680?
Retain the user program, register data, CPU configuration and any application-specific initialization records.
Why can IC600LX624, IC600LX648 or IC600LX680 show a parity condition at first power-up?
New RAM can power up in an unknown state after the battery is connected. Follow the Series Six start-up procedure to clear and initialize memory before service.
Moore Automation
Global Business Reach
Moore Automation handles industrial automation spare-part enquiries for customers in different regions and production sectors. The supplied range covers mature control platforms as well as current PLC, DCS, drive and HMI equipment.
Fast delivery and a stated 12-hour online response support time-sensitive international enquiries, while products carry a one-year warranty.
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