Key Features
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133 MHz AMD SC520 Processor – High-speed execution at 0.15 ms per 1K Boolean logic
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Dual 10/100 Mbps Ethernet Ports – Built-in network switch with auto-sensing for data rate, duplex, and cable crossover
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240 KB Configurable User Memory – Shared between program logic, %R registers, %AI analog inputs, and %AQ analog outputs
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Ethernet Global Data (EGD) Support – Deterministic producer/consumer data sharing between controllers
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Hardware Floating-Point Math Coprocessor – Faster process execution for advanced calculations
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Modbus TCP Client/Server Support – Direct integration with third-party SCADA and HMI systems
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Battery-Backed Clock – Maintains time/date through power cycles
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Single IP Address for Both Ports – Simplifies network configuration
Technical Parameters
Core Advantages
1. Highest Performance in the Series 90-30 Family
The CPU374 is the fastest CPU available for the Series 90-30 platform, featuring a 133 MHz AMD SC520 processor that delivers a typical scan rate of 0.15 ms per 1K Boolean logic . This makes it suitable for demanding applications requiring high-speed processing, such as test stands, inspection systems, and complex process control .
2. Built-in Dual-Port Ethernet Switch
The CPU374 eliminates the cost and space requirements of separate Ethernet modules by integrating a dual-port 10/100 Mbps Ethernet switch directly into the CPU . The ports auto-sense data rate, duplex mode, and cable crossover, simplifying network connections and enabling easy daisy-chain configurations. Both ports share a single IP address, reducing network complexity .
3. Comprehensive Protocol Support
The CPU374 supports SRTP server, Ethernet Global Data (EGD), and Modbus TCP Client/Server protocols . This enables deterministic peer-to-peer data exchange between controllers via EGD and direct integration with third-party SCADA and HMI systems via Modbus TCP. The built-in web server also allows users to check PLC data and fault tables via web-page access .
4. Flexible Memory Configuration
The 240 KB configurable user memory can be dynamically allocated between program storage and reference tables (%R, %AI, %AQ), allowing optimization for specific application requirements . The hardware floating-point math coprocessor further accelerates complex calculations .
5. Proven Series 90-30 Architecture
The CPU374 integrates seamlessly with the extensive Series 90-30 I/O and option module ecosystem, including Genius I/O, Profibus DP, and DeviceNet networks . It supports up to 8 baseplates (CPU plus 7 expansion/remote racks) and over 4,000 total I/O points .
Important Compatibility Notes
Power Supply Requirements
The CPU374 requires a High Capacity power supply — IC693PWR321 (Revision K or later), IC693PWR322, or IC693PWR330 . It uses approximately 60% of a standard power supply’s capacity, so verify your power budget before installation .
Hand Held Programmer Not Supported
The Series 90-30 Hand Held Programmer (IC693PRG300) cannot be used with the CPU374. Full configuration, including Ethernet setup, requires Proficy Machine Edition, Logic Developer, Control, or VersaPro software .
Power-Up Considerations
The CPU374 was placed on quality hold circa 2006 due to an intermittent power-up issue where the processor occasionally fails to enter Run mode on first power cycle . In electrically noisy environments with large inductive loads, the CPU may power up in Stop/Program mode instead of automatic Run mode. Mitigation measures include verifying battery condition before planned shutdowns, confirming ground integrity, and storing programs in non-volatile memory .
Applications
The IC693CPU374 is deployed across diverse industrial control applications:
Recommended Models & Related Products
What's Included
Note: Power supply, baseplate, I/O modules, 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 IC693CPU374?
It is the highest-performance CPU module for the Series 90-30 PLC platform, featuring a 133 MHz AMD SC520 processor, 240 KB configurable user memory, and embedded dual-port Ethernet switch .
Q2: What makes the CPU374 different from other Series 90-30 CPUs?
The CPU374 is the fastest CPU in the family (0.15 ms/K scan rate) and includes built-in dual 10/100 Ethernet ports with an integrated switch, eliminating the need for separate Ethernet modules .
Q3: How much user memory does the CPU374 have?
It has 240 KB (245,760 bytes) of total user memory, shared between program logic, %R registers, %AI analog inputs, and %AQ analog outputs .
Q4: What Ethernet protocols does the CPU374 support?
It supports SRTP server, Ethernet Global Data (EGD), and Modbus TCP Client/Server protocols .
Q5: Does the CPU374 support floating-point math?
Yes. It includes a hardware floating-point math coprocessor for faster process execution .
Q6: What power supply is required for the CPU374?
It requires a High Capacity power supply — IC693PWR321 (Revision K or later), IC693PWR322, or IC693PWR330. It uses approximately 60% of a standard power supply's capacity .
Q7: Can I use the Hand Held Programmer with the CPU374?
No. The Hand Held Programmer cannot view or edit user programs on the CPU374. Proficy Machine Edition, Logic Developer, Control, or VersaPro software is required for full configuration .
Q8: How many baseplates can the CPU374 support?
It supports up to 8 baseplates — one CPU baseplate plus seven expansion and/or remote baseplates .
Q9: What are the physical dimensions and weight?
The module is a single-slot Series 90-30 form factor. Weight is approximately 0.32 kg .
Q10: What is the operating temperature range?
The CPU374 operates from 0 to 60°C (32 to 140°F) .
