GE Fanuc IC610CPU101 / IC610CPU104 Series One CPU Modules
Two Series One CPU choices: the standard IC610CPU101 and the enhanced Model E IC610CPU104.
Product Overview
GE Fanuc IC610CPU101 is the standard Series One CPU, while IC610CPU104 is the enhanced Series One Model E CPU; both execute the controller's relay-ladder program and coordinate the installed I/O.
Both CPU modules execute Series One relay-replacement logic and use the same rack-based I/O environment. Program capacity depends on installed CMOS or PROM memory.
IC610CPU101: Standard Series One CPU; revision A uses three-digit timer/counter presets, while revisions B/C use four digits.
IC610CPU104: Model E is identified by GE as the enhanced version of IC610CPU101; preserve the exact nameplate when replacing.
Technical Specifications
| Brand | GE Fanuc |
|---|---|
| Model | IC610CPU101 / IC610CPU104 |
| Product Type | PLC CPU Modules |
| Country | United States |
| Platform | Series One PLC |
| Standard memory | 700 words CMOS |
| Expansion | Up to 1,724 words |
| IC610CPU101 | Standard Series One CPU; version C UL listed |
| IC610CPU104 | Model E enhanced version of CPU101 |
| Programming | Series One programmer connection |
| Programming method | Relay-ladder program |
| IC610CPU104 scan time | 8 ms at 0.5K words; 12 ms at 1.0K; 15 ms at 1.7K |
| IC610CPU104 access control | User-entered four-digit password |
| IC610CPU104 communications | IC610CCM105 Data Communications Unit |
Functions and Program Execution
IC610CPU101 executes the standard Series One instruction set and starts with 700 words of CMOS program memory, with expansion available for larger ladder programs.
IC610CPU104 retains the Series One operating model while adding the Model E scan performance, password protection and faster data communications supported through IC610CCM105.
The CPU power-up switch selects either cleared or retained coil states, while the memory switch identifies PROM or CMOS operation; these hardware settings shape how the stored ladder resumes after energization.
Memory, Settings and Communications
Power-up behavior and the installed CMOS or PROM memory must agree with the CPU switch settings. The CPU then scans the ladder program, updates its internal states and transfers the resulting output image to the rack I/O.
For IC610CPU104, the Model E timing values apply to the enhanced processor and must not be attributed to IC610CPU101.
Expansion-memory jumper positions distinguish the supported CMOS and PROM capacities, and the PROM arrangement requires the documented battery-jumper precaution.
IC610CPU101 / IC610CPU104 FAQ
What is the main difference between IC610CPU101 and IC610CPU104?
GE lists IC610CPU104 as the Model E enhanced version of the standard IC610CPU101.
How much standard memory is documented for IC610CPU101 / IC610CPU104?
Series One CPUs are supplied with 700 words of CMOS memory as standard; expansion to 1,724 words is documented.
Why does the IC610CPU101 revision letter matter for IC610CPU101 / IC610CPU104?
Revision A uses three-digit timer/counter presets and a different monitoring sequence; revisions B and C use four digits and NXT/PRV navigation.
Can the catalog number be selected from the rack alone for IC610CPU101 / IC610CPU104?
No. Read the CPU label and record its revision and memory arrangement.
What should be checked before returning a replacement CPU to service for IC610CPU101 / IC610CPU104?
Restore the intended program, verify the I/O configuration and confirm safe STOP-to-RUN commissioning.
How should a saved program be checked before installing IC610CPU101 / IC610CPU104?
Compare the archived ladder, memory size, timer/counter behavior and I/O assignment with the labeled CPU and its revision before enabling outputs.
Catalog-number confirmation
Moore Automation reviews manufacturer, family and complete catalog number before quotation so similarly named legacy parts are not treated as interchangeable.
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