GE Series 90-30 Modules: 109W3914P002

Technical Dossier

Product Details And Specifications

GE Series 90-30 Technical Notes

The GE Series 90-30 (also marketed as GE Fanuc Series 90-30) is a mid-range programmable logic controller platform that has maintained a dominant installed base across global heavy industry since its commercial introduction in the late 1980s. Deployed extensively in chemical processing plants, petroleum refineries, nuclear auxiliary systems, pulp and paper mills, and municipal water treatment facilities, the 90-30 architecture is characterized by its modular rack-based design, deterministic scan-cycle execution, and broad compatibility with GE's Logicmaster and Proficy Machine Edition programming environments.

The platform supports rack configurations from 5-slot to 10-slot backplanes, with CPU modules ranging from the entry-level IC693CPU311 to the high-performance IC693CPU374 with embedded Ethernet. Its I/O subsystem covers discrete, analog, high-speed counter, and specialty function modules, all communicating over a proprietary parallel backplane bus. The 109W3914P002 is a module card component within this ecosystem, used in rack assembly and backplane interface applications.

The Evolution of Series 90-30 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 release centered on the IC693CPU311 and IC693CPU321 processors, which offered 6K and 12K word program memory respectively, with I/O expansion via the IC693CHS series rack chassis.

By the mid-1990s, GE Fanuc introduced the IC693CPU340 and IC693CPU350, adding floating-point math capability and expanded data table sizes. The IC693CPU360 followed with integrated serial communications, reducing the need for dedicated CMM modules in smaller applications. The late 1990s saw the IC693CPU363 and IC693CPU364, which introduced embedded 10Base-T Ethernet and support for SRTP (Service Request Transfer Protocol), enabling direct integration with SCADA systems without an intermediate Ethernet Interface Unit (EIU).

Compatibility note: 90-30 modules are not electrically or mechanically interchangeable with GE's Series 90-70, VersaMax, or PACSystems RX3i platforms. Migration to RX3i requires a full I/O remapping exercise and updated Proficy ME project files.

Series 90-30 Full Catalog & Functionalities (SKU List)

CPU Modules

• IC693CPU311: 6K word program memory, 512 discrete I/O, no floating point
• IC693CPU321: 12K word program memory, 1024 discrete I/O, RS-232 port
• IC693CPU340: 20K word memory, floating-point math, 2048 I/O points
• IC693CPU350: 32K word memory, enhanced instruction set, 4096 I/O
• IC693CPU360: Embedded serial port, 32K word, reduced CMM dependency
• IC693CPU363: Embedded 10Base-T Ethernet, SRTP support, 32K word
• IC693CPU364: Dual serial + Ethernet, 64K word program memory
• IC693CPU374: 240KB program, 32MB storage, dual Ethernet, peak 90-30 CPU

Discrete I/O Modules

• IC693MDL340: 24VDC 8-point discrete input module, sink/source configurable
• IC693MDL341: 24VDC 16-point discrete input, high-density rack mount
• IC693MDL390: 120VAC 8-point discrete input module
• IC693MDL740: 12/24VDC 8-point discrete output, 0.5A per point
• IC693MDL741: 24VDC 16-point discrete output, sourcing type
• IC693MDL930: Relay output, 8-point, 2A per contact, Form A

Analog I/O Modules

• IC693ALG220: 4-channel analog input, 4–20mA / 0–10V selectable
• IC693ALG390: 4-channel analog output, 12-bit resolution, 4–20mA
• IC693ALG442: 8-channel analog input, 16-bit resolution, thermocouple/RTD

Communications & Specialty Modules

• IC693CMM311: Serial communications module, RS-232/RS-485, ASCII/RTU Modbus
• IC693CMM321: Genius Bus Controller, interfaces 90-30 to GE Genius I/O network
• IC693PBS301: PROFIBUS-DP slave adapter, 12Mbps, 244-byte I/O
• 109W3914P002: Module card assembly component, backplane interface, rack-mount hardware for Series 90-30 chassis integration

Power Supply Modules

• IC693PWR321: 120/240VAC input power supply, 30W output, standard rack
• IC693PWR330: 24VDC input power supply, 30W, for DC-powered panels
• IC693PWR331: High-capacity 120/240VAC supply, 40W, for fully populated racks

Quality Control for the Series 90-30 Range

Series 90-30 modules present specific test challenges due to their parallel backplane bus architecture and the age-related degradation patterns common in CMOS logic ICs manufactured in the late 1980s and 1990s. DriveKNMS applies the following test protocol to all 90-30 units prior to shipment:

• Visual inspection: PCB examination for capacitor bulge, corrosion on edge connectors, cracked solder joints on through-hole components, and UV-induced plastic embrittlement on housing assemblies.
• Backplane bus functional test: Each module is seated in a live 90-30 test rack and interrogated via the CPU's I/O configuration scan. Modules that fail to enumerate or return incorrect module ID codes are rejected.
• Analog calibration verification: For ALG-series modules, input and output channels are verified against a calibrated reference source at 0%, 25%, 50%, 75%, and 100% of rated range. Offset and gain errors exceeding ±0.1% of full scale trigger recalibration or rejection.
• Communications loopback test: CMM and PBS modules are tested under active Modbus RTU and PROFIBUS-DP traffic at rated baud rates to confirm framing integrity and error-free data exchange.
• Thermal soak: Units are operated at 50°C ambient for 2 hours to screen for latent thermal failures in aging electrolytic capacitors and voltage regulators.
• Firmware version logging: CPU module firmware revisions are recorded and disclosed to the customer prior to shipment to ensure compatibility with existing Logicmaster or Proficy ME project files.