Key Features
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96 MHz 80486DX4 Processor – 32-bit architecture with hardware floating-point math for demanding calculations
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1 MB Battery-Backed RAM – User program, configuration, and register data storage in a single slot
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256 KB Non-Volatile Flash – Optional user data storage for additional program protection
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0.4 µs per Boolean Function – Fast scan rates for high-speed control applications
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Three Serial Ports – Port 1: RS-232; Port 2: RS-485 (optocoupler isolated); Port 3: RS-485 (not isolated)
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12K I/O Capacity – Supports up to 12,288 discrete I/O and 8,000 analog I/O in any mix
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In-System Firmware Upgrade – Operating system firmware stored in flash memory for easy updates without disassembly
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Battery-Backed Calendar Clock – Maintains time/date accuracy through power cycles
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Seven Status LEDs – Front-panel indication of CPU and serial port status
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Software Configuration Only – No DIP switches or jumpers required
Technical Parameters
Core Advantages
1. Highest Performance in the Series 90-70 Family
The CPX782 is the most powerful CPU available for the Series 90-70 platform. Its 96 MHz 80486DX4 processor delivers a Boolean execution rate of 0.4 microseconds per function — fast enough for demanding applications requiring high-speed logic execution and complex mathematical calculations . The hardware floating-point math capability enables efficient processing of PID loops, motion control algorithms, and advanced process calculations without external coprocessors .
2. Generous Memory in a Single Slot
The CPX782 packs 1 MB of battery-backed CMOS RAM and 256 KB of non-volatile flash memory into a single slot . The battery-backed RAM retains program and data through power outages, while the flash memory provides an additional layer of program protection. The battery shelf life is 5 years at 20°C, with 6 months nominal memory retention without applied power .
3. Comprehensive Serial Communication
The module provides three independent serial ports for programming and device communication: Port 1 (RS-232), Port 2 (RS-485, optocoupler isolated), and Port 3 (RS-485, not isolated) . All three ports support SNP Slave protocol for programming and communication with serial devices. Front-panel LEDs (P1, P2, P3) provide serial port activity status without requiring a terminal connection .
4. Seamless Backplane Integration
The CPX782 communicates with I/O and smart option modules over the rack-mounted backplane using the VME C.1 Standard format . It supports a broad ecosystem of option modules including LAN Interface modules (for Ethernet connectivity), Programmable Coprocessor, Alphanumeric Display Coprocessor, Bus Controller for IC660/661 I/O, Communications modules, and all IC697 discrete and analog I/O modules .
5. In-System Firmware Upgradability
Unlike earlier CPUs that required EPROM replacement, the CPX782 stores its operating system firmware in non-volatile flash memory. Firmware updates are performed by connecting a PC to a serial port and running the software included with the firmware upgrade kit — no module disassembly or EPROM replacement required .
6. Robust Program Protection
The module includes password-controlled software access and a memory protect keyswitch for manual data locking. When the key is in the protected position, program and configuration data can only be changed by a programmer connected in parallel to the Bus Transmitter module . A three-position RUN/STOP switch provides local control of module operation .
Applications
The IC697CPX782 is deployed across demanding industrial control applications:
Recommended Models & Related Products
What's Included
Note: Power supply, rack, I/O modules, battery, and programming software are sold separately.
Why Buy From Us?
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In Stock – Ready to ship immediately
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Fully Tested – Each module verified for functionality
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Warranty Included – Purchase with confidence
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Technical Support – Compatibility assistance available
Frequently Asked Questions (FAQ)
Q1: What is the GE Fanuc IC697CPX782?
It is the highest-performance CPU module for the Series 90-70 PLC platform, featuring a 96 MHz 80486DX4 processor with hardware floating-point math, 1 MB battery-backed RAM, 256 KB flash memory, and three serial ports .
Q2: What is the difference between the CPX782 and other Series 90-70 CPUs?
The CPX782 offers the fastest processing speed (0.4 µs per Boolean function), the largest memory (1 MB RAM + 256 KB Flash), and hardware floating-point math — all in a single slot . It is the premium CPU option for demanding applications.
Q3: How much memory does the CPX782 have?
It provides 1 MB of battery-backed CMOS RAM for program and data storage, plus 256 KB of non-volatile flash memory for optional user data storage .
Q4: What serial ports are available?
Three ports: Port 1 (RS-232), Port 2 (RS-485, optocoupler isolated), and Port 3 (RS-485, not isolated). All support SNP Slave protocol .
Q5: What is the maximum I/O capacity?
The CPX782 supports up to 12,288 discrete I/O points (any mix) and 8,000 analog I/O points .
Q6: Does the CPX782 support floating-point math?
Yes. The 80486DX4 processor includes hardware floating-point math capability, enabling efficient execution of complex calculations for process control and motion applications .
Q7: Can I upgrade the firmware in-system?
Yes. The operating system firmware is stored in flash memory and can be updated by connecting a PC to a serial port and running the firmware upgrade kit software — no disassembly required .
Q8: How long does the battery last?
The lithium battery (IC697ACC701) has a shelf life of 5 years at 20°C and provides 6 months nominal memory retention without applied power .
Q9: What is the current draw from the 5V bus?
The module requires 3.1 A nominal from the +5V bus .
Q10: What programming software is used?
The CPX782 is programmed and configured using MS-DOS or Windows-based programming software — including Proficy Machine Edition or Logicmaster 90-70 — via Ethernet (requires LAN module) or serial connection .
Q11: Is this product still in production?
No. The IC697CPX782 is discontinued by the manufacturer. For new systems, GE/Emerson recommends modern platforms such as the RX3i or RX7i series . However, the CPX782 remains available through the secondary market for maintaining existing Series 90-70 installations.
