IC693CPU352

Description

Description

The IC693CPU352 is a high-performance single-slot central processing unit (CPU) module developed by GE Fanuc (now integrated into Emerson’s industrial automation portfolio) for the Series 90-30 Programmable Logic Controller (PLC) system. As the “brain” of the automation system, it is responsible for executing user control programs, managing I/O modules, processing real-time data, and coordinating communication between devices. Its combination of powerful 25MHz processing speed, configurable large-capacity memory, multi-protocol communication support, and flexible expansion capabilities makes it a core component for medium-to-complex industrial control scenarios—especially suitable for applications requiring precise logic operation and multi-device coordination.

Application Scenarios

A automotive component manufacturer in Michigan faced operational bottlenecks: its 3 production lines for engine pistons relied on outdated CPU modules with limited memory (32KB) and slow processing speed, which could not handle the simultaneous control of 120+ I/O points (including position sensors, pressure detectors, and robotic grippers). This led to frequent program execution delays, causing 8–10 unplanned line stops monthly, each lasting 20–30 minutes. After upgrading to the IC693CPU352, the manufacturer achieved breakthroughs: its 240KB configurable memory supported integrated control logic for 3 lines, and the 25MHz processor reduced the average scan cycle from 50ms to 8ms. The module’s 3 built-in serial ports also enabled seamless communication with upstream MES systems, realizing real-time production data tracking. As a result, unplanned downtime was cut by 90%, and production efficiency increased by 15% within 3 months. This scenario highlights how the IC693CPU352 solves pain points like insufficient processing capacity, communication isolation, and poor scalability—turning fragmented control into a unified, efficient system.

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IC693CPU352

Technical Principles and Innovative Values

Innovation Point 1: Configurable Large-Capacity Memory for Complex Logic – Unlike entry-level CPUs with fixed small memory (e.g., 32KB), the IC693CPU352 offers 240KB configurable user memory and up to 32,640 words of register memory. This allows engineers to integrate multi-line control logic into a single program instead of splitting it across multiple modules. For example, a food packaging plant used this feature to unify control of 4 packaging lines (previously managed by 2 CPUs), reducing program synchronization errors by 80%.

Innovation Point 2: Multi-Protocol Communication for System Interoperability – The module’s 3 built-in serial ports support SNP/SNP-X (GE’s proprietary protocol) and Modbus RTU, enabling direct communication with HMI panels, frequency drives, and remote I/O racks without additional communication modules. An energy plant leveraged this to connect the CPU to 12 water pumps (via Modbus RTU) and a central SCADA system (via SNP-X), cutting communication hardware costs by $4,000 per control cabinet.

Innovation Point 3: Scalable Architecture for Future Expansion – The IC693CPU352 supports up to 8 backplanes (1 CPU + 7 expansion/remote), with a maximum distance of 213 meters between the CPU rack and remote racks . This scalability eliminates the need for replacing the CPU when expanding production lines. A pharmaceutical manufacturer initially deployed 1 CPU rack for 2 production lines, then added 3 remote racks for new lines without changing the core CPU, saving 60% of upgrade costs.

Application Cases and Industry Value

Water Treatment Facility (California) – The facility used the IC693CPU352 to control its chemical dosing, filtration, and pump systems, which required coordinating 300+ I/O points and communicating with 8 pH sensors and 4 variable-frequency drives (VFDs). The previous CPU lacked floating-point 运算 capability, leading to inaccurate chemical dosing and 12% excess chemical usage. The IC693CPU352’s built-in hardware floating-point support enabled precise PID control of dosing pumps, reducing chemical waste by 18%. Its Modbus RTU compatibility also allowed real-time data sharing with the facility’s energy management system, optimizing pump runtime and cutting electricity costs by $9,000 annually.

Textile Manufacturing Plant (North Carolina) – The plant integrated the IC693CPU352 into 6 yarn spinning lines to control tension sensors, spindle motors, and winding machines. Key requirements included fast response to tension fluctuations (≤10ms) and support for 5 remote I/O racks. The CPU’s 0.22ms/K instruction speed ensured instant adjustments to spindle speed when tension deviated, reducing yarn breakage by 25%. Its scalable architecture also allowed the plant to add 2 more lines by simply connecting new remote racks, with zero downtime during expansion.

Related Product Combination Solutions

Build a complete, high-efficiency Series 90-30 automation system with the IC693CPU352 and these compatible modules:

IC693PWR330: 5VDC/24VDC Power Supply – Delivers stable power to the CPU and I/O modules, with built-in overcurrent protection .

IC693CHS391: 9-Slot Backplane – Serves as the physical and electrical backbone for the CPU and I/O modules, ensuring high-speed data transfer.

IC693MDL340: 16-Channel Digital Input Module – Collects discrete signals (e.g., limit switch status) and sends them to the CPU for processing.

IC693MDL645: 16-Channel Digital Output Module – Executes the CPU’s control commands to activate devices like solenoid valves and alarms.

IC693CMM311: RS-485 Communication Module – Extends the CPU’s communication range to remote sensors or devices via Modbus RTU.

IC693ALG420: 4-Channel Analog Input Module – Captures continuous data (e.g., pressure, temperature) for precise process control by the CPU.

IC693DSM302: 2-Axis Motion Control Module – Integrates with the CPU to handle complex motion tasks (e.g., robotic arm positioning) in manufacturing lines .

IC693MEM320: 32MB Memory Module – Expands storage for logging production data (e.g., pump runtime, chemical usage) from the CPU.

IC693CPU352

Installation, Maintenance, and Full-Cycle Support

Installing the IC693CPU352 is designed for efficiency. Slide the module into the first slot of a compatible Series 90-30 backplane (e.g., IC693CHS391) and secure it with the spring-loaded latch—no tools required. Before power-up:

Verify the power supply (e.g., IC693PWR330) provides stable +5V DC and 890mA minimum current.

Configure the register memory allocation via programming software (e.g., Proficy Machine Edition) based on your application needs.

Ensure the environment meets the 0–60°C temperature and 5–95% humidity requirements.

Routine maintenance is minimal thanks to the CPU’s diagnostic LEDs:

PWR: Confirms power supply; off indicates a power fault.

RUN: Illuminates when the CPU is executing programs; flashing indicates a stop mode.

BATT: Red light alerts to low backup battery, preventing program loss .

For troubleshooting, use the programming software to monitor scan cycles and I/O status. If a communication error occurs, check the serial port settings (baud rate, parity) to ensure alignment with connected devices. Emerson backs the IC693CPU352 with a 2-year warranty and 24/7 technical support. Spare modules are shipped within 48 hours for critical failures, minimizing downtime. Training on CPU configuration and programming is also available for teams new to the Series 90-30 system.

Call to Action

Whether you’re upgrading an outdated Series 90-30 CPU, building a medium-sized automation system, or expanding production lines with complex control needs, the IC693CPU352 delivers the speed, scalability, and reliability your operations demand. Contact us today to discuss your specific application—our team will design a customized solution that pairs the IC693CPU352 with compatible modules to optimize control logic, reduce downtime, and future-proof your automation infrastructure.