The IC697CPU789 is a 32-bit central processing unit from GE Fanuc, designed for the Series 90-70 PLC platform. This module specifically supports Triple Modular Redundancy (TMR) systems, making it ideal for mission-critical applications where fault tolerance is paramount. The IC697CPU789 occupies a single slot in the PLC rack and offers 512 KB of battery-backed RAM, with up to 200 KB reserved for user programs and data. Its 80386DX processor runs at 16 MHz, delivering robust performance for complex control tasks. Furthermore, this CPU communicates with other modules through the VME-compatible rack backplane, ensuring seamless integration within the Series 90-70 ecosystem. The IC697CPU789 also includes one serial port that supports both RS-422 and RS-485 protocols, offering flexible connectivity for programming and peripheral devices.
The IC697CPU789 comes with a comprehensive set of technical capabilities. Its maximum RAM reaches 512 kilobytes, all of which is battery-backed to retain data during power outages. The processor runs at a clock speed of 16 megahertz, based on the reliable 80386DX architecture. For power consumption, the IC697CPU789 draws 1.6 Amps from a 5 Volts DC supply on the PLC backplane. In terms of I/O capacity, this CPU supports up to 12,000 discrete inputs and outputs in any mix when operating in simplex mode. Additionally, it handles 2,048 voted discrete inputs and 2,048 voted discrete outputs for TMR configurations. Analog capabilities include 8,000 simplex inputs, 8,000 simplex outputs, and 1,024 voted analog inputs. The IC697CPU789 also supports various option modules, including alphanumeric display coprocessors, bus controllers for IC660/IC661 I/O, I/O link interfaces, and discrete/analog I/O modules from the IC697 series. This extensive I/O support makes the IC697CPU789 suitable for large-scale automation projects.
The standout feature of the IC697CPU789 is its built-in TMR support. This architecture uses three identical processor channels that execute the same logic simultaneously. The system then votes on the outputs, ensuring that a single faulty channel does not affect the final control action. Consequently, the IC697CPU789 delivers exceptional reliability for safety-critical applications such as turbine control, pipeline monitoring, and power generation. Moreover, the TMR design allows hot-swapping of failed modules without shutting down the entire system. This minimizes downtime and maintains production continuity. When configured in TMR mode, the IC697CPU789 provides 2,048 voted discrete inputs and outputs, plus 1,024 voted analog inputs, giving engineers a robust framework for redundant control strategies.
Installing the IC697CPU789 requires careful attention to the hardware installation manual. First, insert the module into any available slot on the Series 90-70 rack, ensuring it seats firmly against the backplane connectors. After securing the module, connect the programming cable to the serial port – remember that this port supports both RS-422 and RS-485, so choose the correct wiring configuration for your programmer. Next, apply power to the PLC system. The top LED on the IC697CPU789 should start blinking immediately. This blinking indicates the module is running its power-up diagnostics. Once these diagnostics complete successfully, the top LED becomes steady, while the second and third LEDs remain off. At this stage, the IC697CPU789 is ready for programming. Load your application using the appropriate programming software and then move the toggle switch on the CPU to your desired operating position.
The IC697CPU789 provides a total of 512 KB of memory, but not all of it is available for user applications. Specifically, the system reserves a portion for firmware and diagnostic functions. Out of the total, a maximum of 200 KB is accessible for your application programs and data. Therefore, when developing logic for the IC697CPU789, keep your code size within this limit. For larger programs, consider optimizing your logic or using external memory modules. The battery backup ensures that your program and retained data survive power cycles. This feature is especially important for critical parameters and runtime statistics. Additionally, the IC697CPU789 supports memory expansion options through the same slot, giving you flexibility to increase storage if needed.
The IC697CPU789 excels in handling diverse I/O configurations. In simplex mode, it manages up to 12,000 discrete I/O points in any combination, which covers most standard automation requirements. For analog signals, it supports 8,000 inputs and 8,000 outputs in simplex mode, providing ample capacity for process control applications. When operating in TMR mode, the IC697CPU789 handles 2,048 voted discrete inputs and outputs, plus 1,024 voted analog inputs. The single serial port on the IC697CPU789 offers both RS-422 and RS-485 protocols. These protocols enable long-distance communication and multi-drop networks. Use this port for programming, human-machine interface (HMI) connections, or data exchange with other intelligent devices. The VME-compatible backplane handles all high-speed communication with other rack-mounted modules, ensuring deterministic data transfer.
The IC697CPU789 works seamlessly with a wide range of option modules. These include an alphanumeric display coprocessor for local operator interfaces. Additionally, it supports a bus controller for IC660/IC661 I/O systems, which expands remote I/O capabilities. An I/O link interface is also available, allowing the IC697CPU789 to connect with older or specialized I/O networks. Furthermore, the CPU supports all IC697 series discrete and analog I/O modules, providing a consistent hardware ecosystem. When selecting option modules, verify compatibility with the IC697CPU789 and your specific application requirements. The system integrator bears the responsibility for proper installation and configuration of these modules, following the guidelines in the hardware manual.
The IC697CPU789 consumes 1.6 Amps from the 5 Volts DC backplane supply. This relatively modest current draw makes it compatible with standard Series 90-70 power supplies. However, when planning your system, calculate the total power consumption of all modules to ensure the power supply has adequate capacity. The IC697CPU789 operates within standard industrial temperature ranges. Its passive cooling design relies on natural convection, so maintain sufficient clearance around the module for proper airflow. Avoid placing the IC697CPU789 directly above high-heat modules like power supplies or high-current output cards. The module's compact single-slot design saves rack space while still delivering powerful TMR capabilities.
The IC697CPU789 finds widespread use in industries requiring high reliability. For instance, power generation plants use this CPU for turbine control systems where a single failure could have severe consequences. Oil and gas pipelines employ the IC697CPU789 for remote valve control and leak detection. Manufacturing facilities with critical processes, such as pharmaceutical production, also benefit from its TMR features. Additionally, water treatment plants and chemical processing units rely on the IC697CPU789 for continuous, fail-safe operation. The module's large I/O capacity and flexible analog support make it versatile for both discrete and process control applications. System integrators appreciate its compatibility with existing Series 90-70 hardware, allowing upgrades without a complete system overhaul.
Your shipment of the IC697CPU789 includes:
One GE Fanuc IC697CPU789 TMR CPU module
One printed hardware installation guide (English)
One anti-static protective bag
One warranty registration card (digital copy available)
Two spare mounting screws for rack installation
This package does not include programming cables, software, or any I/O modules. Those items must be ordered separately. Also, no calibration certificates or extended warranty documents are enclosed in the box – these are provided electronically upon request.
We dispatch all IC697CPU789 orders using trusted global couriers: FedEx, UPS, and DHL. Each unit receives careful packaging with electrostatic discharge (ESD) protection. Tracking numbers are sent via email within 24 hours after dispatch. Standard delivery times range from 3 to 7 business days for most international destinations. Express shipping options are available for urgent orders. Please ensure your shipping address is complete and accurate to prevent delivery delays. All shipments are fully insured against transit damage.
Q1: Can the IC697CPU789 run non-TMR applications?
Yes. The IC697CPU789 operates in simplex mode just like a standard CPU. You can choose TMR or simplex configuration based on your application needs. In simplex mode, it supports up to 12,000 discrete I/O and 8,000 analog I/O.
Q2: What programming software works with the IC697CPU789?
The IC697CPU789 uses GE Fanuc's programming tools compatible with Series 90-70 PLCs. Proficy Machine Edition and Logicmaster 90-70 are common choices. Ensure your software version supports the TMR features if you plan to use redundancy.
Q3: How do I expand memory beyond 512 KB on the IC697CPU789?
The IC697CPU789 supports memory expansion through optional memory cards that fit in the same slot. These expansion modules increase total RAM capacity. Consult the hardware manual for compatible memory expansion options.
Q4: What does the toggle switch on the IC697CPU789 control?
The toggle switch sets the operating mode of the IC697CPU789. It typically controls functions like program protect, start/stop, or configuration lock. Refer to the installation guide for the exact switch positions and their functions.
Q5: Can the IC697CPU789 communicate with third-party HMIs?
Yes. The IC697CPU789 serial port supports RS-422 and RS-485 protocols, which are widely used by HMI manufacturers. Simply configure the port parameters (baud rate, parity, etc.) to match your HMI device. For network communication, use a separate Ethernet module in the rack.
| Brand Name | |
| Model No. | IC697CPU789 |
| Product Type | CPU Module |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
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