GE IC693CPU374-GP

Description

Detailed Parameter Table

GE IC693CPU374-GP

Product Introduction

The GE IC693CPU374-GP is a high-performance 32-bit CPU module designed for GE’s PACSystems 90-30 platform, engineered to handle medium-scale industrial automation tasks—such as packaging lines, material handling systems, and regional water treatment plants. Positioned above the entry-level IC693CPU364 and below the premium IC693CPU384, it strikes a balance between processing power, memory capacity, and cost, making it the workhorse of 90-30 systems in mid-sized applications.

Equipped with an 80 MHz RISC processor and 8 MB Flash/4 MB SRAM memory, the IC693CPU374-GP processes basic ladder logic rungs in 0.2 μs—twice as fast as the IC693CPU364—and supports program sizes up to 6 MB, accommodating complex control logic with hundreds of I/O points. Its integrated communication interfaces (Ethernet, RS-485, RS-232) eliminate the need for separate communication modules in standard applications, while compatibility with all 90-30 I/O modules ensures flexible system expansion. For users seeking reliable performance without the cost of premium CPUs, the IC693CPU374-GP delivers an optimal combination of capability and value.

Core Advantages and Technical Highlights

1. Balanced Performance for Medium-Scale Applications

The IC693CPU374-GP’s 80 MHz processor and optimized instruction set deliver sufficient performance for most mid-sized automation tasks:

Processing Speed: 0.2 μs per basic ladder rung enables control loops with 10 ms update rates—adequate for packaging lines, conveyor systems, and batch processing.

Memory Capacity: 8 MB Flash storage accommodates 6 MB program logic plus 2 MB for data logging; 4 MB SRAM supports 20,000+ data registers for process variables.

I/O Scalability: Manages up to 1024 I/O points via the 5 Mbps backplane, supporting expansion from small systems (32 I/O) to medium-scale installations (500+ I/O).

2. Integrated Communication for Simplified Connectivity

Unlike budget 90-30 CPUs requiring external communication modules, the IC693CPU374-GP includes three built-in interfaces:

Ethernet (10/100 Base-TX): Supports Modbus TCP/IP (Client/Server) for connecting to HMIs, SCADA systems, and other PLCs—eliminating the need for an IC693ETM001 module.

RS-485: Acts as Modbus RTU Master/Slave for communication with field devices (sensors, VFDs) over distances up to 1200 meters.

RS-232: Provides local programming access and connection to legacy devices (e.g., barcode scanners, printers).

This integration reduces system cost by 25% compared to using a basic CPU with add-on communication modules.

3. Flexible Expansion for Evolving Systems

The CPU’s modular design supports incremental upgrades as application requirements grow:

Memory Expansion: IC693MEM321 (16 MB NVRAM) doubles data storage for historical logging or complex recipes.

I/O Expansion: Works with all 90-30 I/O modules, including digital (IC693MDL240), analog (IC693MDL330), and specialty modules (IC693ALG221 PID controller).

Communication Upgrade: Can be paired with advanced modules like IC693CMM321-GH (multi-protocol) or IC693ETM001 (gigabit Ethernet) for enhanced connectivity.

This scalability allows users to start with a basic system and expand incrementally, avoiding over-investment in initial infrastructure.

4. Robust Reliability for Continuous Operation

Designed for industrial durability, the IC693CPU374-GP includes features that maximize uptime:

Cold Standby Redundancy: When paired with a secondary CPU and IC693CMM321-GH module, provides basic fault tolerance for non-critical applications.

Watchdog Timer: Automatically resets the CPU after 1.5 seconds if a software fault occurs, preventing complete system shutdown.

Non-Volatile Memory: Retains program and data during power loss without batteries, ensuring quick recovery after outages.

Environmental Resilience: Withstands 0°C to 60°C temperatures and 30 g shock, suitable for factory floors and outdoor equipment shelters.

Synergy with 90-30 Communication Modules

The IC693CPU374-GP works seamlessly with 90-30 communication modules to extend connectivity beyond its built-in capabilities:

1. With IC693CMM321-GH (Multi-Protocol Module)

Collaboration: CPU handles control logic while the module manages PROFINET/DF1 communication with third-party devices.

Data Flow: Backplane transfers 1000+ I/O points between CPU and module at 5 Mbps, ensuring <10 ms latency for critical signals.

Application: In a food processing line, the CPU controls heating elements via 90-30 I/O modules while the module communicates with Allen-Bradley VFDs (DF1) and Siemens sensors (PROFINET).

2. With IC693ETM001 (Ethernet Module)

Collaboration: Module offloads high-bandwidth Ethernet tasks (e.g., video streaming from machine vision cameras) from the CPU.

Redundancy: CPU uses built-in Ethernet for primary communication; module provides backup link to SCADA system.

Application: In a warehouse automation system, the CPU manages conveyor logic while the module streams camera data for package tracking.

Typical Application Scenarios

1. Pharmaceutical Packaging Line

A pharmaceutical manufacturer uses IC693CPU374-GP to control a blister packaging line:

CPU Role: Manages 200+ I/O points (photocells, solenoid valves, servo drives) via IC693MDL240/330 modules.

Communication: Uses built-in Ethernet to send production data (batch count, reject rates) to a Plant Historian; RS-485 connects to 12 temperature controllers (Modbus RTU).

Key Benefit: 8 MB Flash stores 100+ packaging recipes, enabling quick product changeovers (5 minutes vs. 30 minutes with legacy systems).

2. Municipal Wastewater Pump Station

A city uses the CPU to control a regional wastewater pump station:

CPU Role: Executes PID logic to maintain pump pressure; monitors 50+ analog inputs (flow, level, pressure) via IC693MDL330 modules.

Communication: Ethernet connects to city SCADA system; RS-485 links to 8 variable-speed pumps (Modbus RTU).

Reliability Feature: Cold standby redundancy with a second IC693CPU374-GP ensures pump operation continues during primary CPU failure.

3. Automotive Component Assembly

An auto parts supplier uses the CPU for a transmission assembly line:

CPU Role: Coordinates 15 robotic arms, 40 sensors, and 25 actuators via 90-30 I/O modules.

Communication: Paired with IC693CMM321-GH to connect to PROFINET-enabled torque wrenches and Ethernet/IP vision systems.

Performance: 0.2 μs instruction speed ensures 10 ms control loops, maintaining assembly precision (±0.02 mm).

Related Model Recommendations

GE IC693CPU374-GP

Installation, Commissioning and Maintenance

Installation Preparation

Power off the 90-30 rack (e.g., IC693CHS391) and wear an anti-static wristband to protect the CPU’s integrated circuits.

Ensure the rack’s slot 1 (CPU slot) is vacant and powered by a compatible supply (IC693PWR321) to support 1.2 A @ 5 V DC and 0.15 A @ 24 V DC.

Gather tools: Phillips screwdriver, torque wrench (2.5 N·m for rack screws), Ethernet cable, RS-485 cable, RS-232 programming cable, and PC with Proficy Machine Edition (v9.0+).

Verify environment: 0°C to 60°C temperature, 5%-95% RH (non-condensing), and minimal vibration (≤5 g).

Commissioning Steps

Install the IC693CPU374-GP into slot 1 of the rack: align the backplane connector, slide the module into place, and secure with screws (torque to 2.5 N·m).

Connect external devices:

Ethernet: Connect to network switch for SCADA/HMI communication.

RS-485: Wire to Modbus RTU devices (daisy-chain topology, shielded to ground).

RS-232: Connect to PC for programming.

Power on the rack: confirm green Power LED, green Run LED (after initialization), and no red Fault LED.

Program the CPU: Launch Proficy Machine Edition, connect to the CPU via RS-232 or Ethernet, and upload the control program (e.g., ladder logic for packaging line control).

Test functionality: Switch CPU to RUN mode and verify I/O operation (e.g., activate a digital output and check corresponding module LED). Test communication by polling a Modbus RTU sensor and verifying data appears in the HMI.

Maintenance Guidelines

Daily: Inspect LEDs—green Power, green Run, and no red Fault LED indicate normal operation. Check Ethernet Link LED (green) and RS-485 Activity LED (amber blinking).

Weekly: Clean CPU vents and backplane connector with compressed air (low pressure <30 psi) to remove dust—prevents overheating.

Monthly: Use Proficy Machine Edition to back up the program and memory data. Check for firmware updates on GE’s support portal (update annually).

Quarterly: Verify power supply stability (measure 5 V DC and 24 V DC at rack backplane; tolerance ±5%). Test watchdog timer by intentionally causing a software fault (e.g., divide by zero).

Annually: Inspect CPU terminals for corrosion (especially in humid environments) and clean with isopropyl alcohol if needed. Check rack mounting screws for tightness.

Service and Guarantee Commitment

The GE IC693CPU374-GP is backed by a 2-year standard manufacturer’s warranty from GE Industrial Solutions, covering defects in materials, workmanship, and performance (e.g., processing speed, memory reliability) under normal industrial use. During the warranty period, GE will repair or replace faulty units free of charge, with 48-hour shipping for standard applications.

Beyond warranty, GE offers support options tailored to 90-30 systems:

Technical Support: 8×5 phone/email access to 90-30 specialists for programming troubleshooting and system optimization.

Extended Service Plans: Annual on-site maintenance (CPU health checks, program backup, firmware updates) with priority response times.

Legacy Support: Guaranteed spare part availability for 10 years from product discontinuation, ensuring long-term support for installed bases.

Migration Services: Consulting to upgrade to PACSystems RX3i, including program conversion from 90-30 to RX3i format.