GE Series 90-30 IC693 Modules IC693CPU350

Name: GE Series 90-30 IC693 Modules IC693CPU350
Brand: GE Automation & Controls

Model: IC693CPU350

Brand GE Automation & Controls

Series Series 90-30

Model IC693CPU350

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Product Details And Specifications

GE Series 90-30 IC693 Series Technical Notes

The GE Series 90-30 (IC693) programmable logic controller platform is one of the most widely deployed mid-range DCS/PLC architectures in global heavy industry. Installed across petrochemical refineries, nuclear power auxiliary systems, chemical processing plants, and continuous manufacturing lines, the IC693 rack-based architecture has maintained a significant installed base since its commercial introduction in the late 1980s. Its modular backplane design — supporting 5-slot, 10-slot, and expansion rack configurations — allowed engineers to build scalable control systems with deterministic scan times and robust I/O density. The platform's longevity is a direct result of its compatibility with GE's Proficy Machine Edition programming environment and its adherence to IEC 61131-3 ladder logic standards, making it a reference architecture for brownfield plant maintenance programs worldwide.

The Evolution of IC693 Architecture

The Series 90-30 platform was introduced by GE Fanuc Automation in 1988 as a successor to the Series Six and Series Five PLC families. The initial CPU offerings — including the IC693CPU311 and IC693CPU313 — provided basic ladder logic execution with limited memory. Through the 1990s, GE Fanuc progressively expanded the CPU tier with models such as the IC693CPU321, IC693CPU331, and IC693CPU340, each adding program memory capacity, floating-point math support, and enhanced communication options.

The IC693CPU350, introduced in the mid-1990s, represented a significant step in the platform's evolution: 240 KB of user program memory, support for up to 2,048 discrete I/O points, and native compatibility with the SNP/SNP-X communication protocol. The IC693CPU360 and IC693CPU374 followed, adding Ethernet TCP/IP capability and expanded data table sizes. By the 2000s, GE Fanuc (later rebranded GE Intelligent Platforms, then GE Automation & Controls) positioned the RX3i (IC695 series) as the strategic successor, while continuing to support the IC693 installed base through spare parts and firmware maintenance. The IC693 series is now in a mature/end-of-life phase; GE no longer manufactures new units, making third-party MRO sourcing the primary supply channel for plant maintenance teams.

IC693 Full Catalog & Functionalities (SKU List)

CPU Modules

IC693CPU311: Entry-level CPU, 6 KB program memory, Series 90-30 base controller.
IC693CPU313: 12 KB program memory CPU, supports up to 512 discrete I/O points.
IC693CPU321: 32 KB CPU with floating-point math, enhanced instruction set.
IC693CPU331: 80 KB CPU, supports up to 1,024 I/O, SNP communications.
IC693CPU340: 240 KB CPU, high-speed interrupt inputs, expanded data tables.
IC693CPU350: 240 KB CPU, 2,048 I/O capacity, SNP/SNP-X, primary MRO target.
IC693CPU360: Ethernet-enabled CPU, 240 KB, TCP/IP SRTP protocol support.
IC693CPU374: High-performance CPU, 512 KB, Ethernet + serial, expanded PID.

Discrete Input Modules (DI)

IC693MDL230: 8-point 120 VAC discrete input module, isolated commons.
IC693MDL240: 16-point 120 VAC discrete input, standard rack mount.
IC693MDL241: 16-point 24 VDC positive logic discrete input module.
IC693MDL260: 32-point 24 VDC discrete input, high-density I/O module.

Discrete Output Modules (DO)

IC693MDL310: 8-point relay output module, 2A per point, Form C contacts.
IC693MDL340: 16-point 120/240 VAC triac output, 0.5A per point.
IC693MDL390: 32-point 24 VDC transistor output, high-density sourcing.

Analog Modules (AI/AO)

IC693ALG220: 4-channel analog input, 4–20 mA / 0–10 V configurable.
IC693ALG390: 8-channel analog input, 12-bit resolution, current/voltage.
IC693ALG442: 4-channel analog output, 12-bit, 4–20 mA / 0–10 V.

Communication & Specialty Modules

IC693CMM311: Serial communications module, RS-232/RS-485, SNP/Modbus RTU.
IC693CMM321: Ethernet TCP/IP communications coprocessor module.
IC693PBS301: PROFIBUS-DP slave adapter for Series 90-30 rack integration.

Power Supply Modules (PS)

IC693PWR321: 120/240 VAC input power supply, 30W output for 10-slot rack.
IC693PWR330: 24 VDC input power supply, 30W, high-noise-immunity design.

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