GE Series Six 6K PLC Modules: 6KAV143003Y1D1

Technical Dossier

Product Details And Specifications

GE Series Six (6K) PLC: Comprehensive Module Range and Technical Overview

The GE Series Six, commercially designated under the 6K prefix, is a family of programmable logic controllers developed by General Electric Automation (later GE Fanuc Automation) for deployment in continuous-process and discrete manufacturing environments. Installed across petrochemical refineries, nuclear power auxiliary systems, pulp and paper mills, and offshore platforms, the Series Six platform established a benchmark for rack-based modular PLC architecture in the 1980s and 1990s. Its backplane bus design, deterministic scan cycle, and broad I/O density made it the controller of choice for facilities requiring high channel counts and long mean-time-between-failure (MTBF) ratings. Thousands of Series Six racks remain in active service globally, supported by a mature ecosystem of third-party spare parts suppliers and lifecycle extension programs.

The Evolution of Series Six (6K) Architecture

The Series Six platform was introduced in the early 1980s as GE's answer to the growing demand for modular, rack-mounted PLCs capable of handling large I/O counts in harsh industrial environments. The original architecture used a parallel backplane bus operating at TTL logic levels, with a CPU module executing ladder logic at fixed scan rates. Early CPUs such as the 6KCU200 and 6KCU300 supported basic Boolean and timer/counter instructions. By the mid-1980s, GE introduced enhanced CPU variants with expanded memory (up to 16K registers) and floating-point math capability, enabling analog loop control directly within the PLC scan.

Following GE's joint venture with Fanuc in 1986 to form GE Fanuc Automation, the Series Six received firmware updates and expanded communication options, including support for the GE proprietary Genius I/O bus and early Modbus RTU adapters. The platform entered its mature phase in the 1990s, with no major architectural revisions, as GE Fanuc shifted investment toward the Series 90 (90-30, 90-70) platform. Series Six was formally declared end-of-life (EOL) by GE Fanuc in the early 2000s, though field installations continued to operate. Compatibility between early and late Series Six modules is generally maintained at the rack and backplane level, but CPU firmware versions must be matched to I/O module generations to avoid bus arbitration faults.

Series Six (6K) Full Catalog & Functionalities – SKU List

The following SKUs represent verified, commonly sourced modules within the GE Series Six / 6K platform. Modules are classified by functional category.

CPU & Controller Modules

• 6KCU200: Series Six CPU, 2K logic memory, basic instruction set, single-rack configuration.
• 6KCU300: Series Six CPU, 4K logic memory, enhanced timer/counter, multi-rack capable.
• 6KCU500: Series Six CPU, 8K logic memory, floating-point math, analog loop support.
• 6KCU700: Series Six CPU, 16K logic memory, extended register file, Genius bus interface.

Analog Input Modules

• 6KAV143003Y1D1: Analog voltage input module, 14-channel, 0–10 VDC / ±10 VDC range, 12-bit resolution, rack-mount, Series Six backplane compatible.
• 6KAI143001: Analog current input, 8-channel, 4–20 mA, 12-bit resolution.
• 6KAI143002: Analog current input, 16-channel, 4–20 mA, differential configuration.
• 6KAV143001: Analog voltage input, 8-channel, 0–10 VDC, single-ended.

Analog Output Modules

• 6KAO143001: Analog current output, 4-channel, 4–20 mA, 12-bit DAC.
• 6KAO143002: Analog voltage output, 4-channel, 0–10 VDC / ±10 VDC, 12-bit DAC.

Digital Input Modules

• 6KDI143001: Discrete input, 32-channel, 24 VDC, sink/source configurable.
• 6KDI143002: Discrete input, 16-channel, 120 VAC, optically isolated.
• 6KDI143003: Discrete input, 32-channel, 48 VDC, high-density rack mount.

Digital Output Modules

• 6KDO143001: Discrete output, 32-channel, 24 VDC, transistor (NPN), 0.5 A per channel.
• 6KDO143002: Discrete output, 16-channel, 120 VAC, triac, 1 A per channel.
• 6KDO143003: Relay output, 16-channel, Form C contacts, 2 A / 250 VAC.

Communication & Adapter Modules

• 6KGMA001: Genius bus master adapter, single bus, up to 32 Genius blocks per segment.
• 6KGMA002: Genius bus master adapter, dual redundant bus configuration.
• 6KCOM001: RS-232/RS-485 serial communication module, Modbus RTU master/slave.

Power Supply Modules

• 6KPS100: Series Six rack power supply, 120/240 VAC input, 5 VDC / 15 A output.
• 6KPS200: Series Six rack power supply, 24 VDC input, 5 VDC / 10 A output, battery-backed.

Sourcing Hard-to-Find & Obsolete Series Six (6K) Parts

The GE Series Six platform has been out of OEM production for over two decades. Original GE Fanuc and subsequent GE Intelligent Platforms support contracts for this series have expired, leaving end-users dependent on the secondary market for replacement modules. DriveKNMS maintains a dedicated inventory of Series Six modules sourced from decommissioned plant equipment, controlled-environment warehouses, and verified surplus channels.

For modules such as the 6KAV143003Y1D1 and other high-channel analog input variants, DriveKNMS provides: direct replacement units with full functional verification, cross-reference matching to identify equivalent modules where exact part numbers are unavailable, and lifecycle extension consultation to assess whether a Series Six rack can be maintained cost-effectively versus migrating to a modern platform such as the GE Automation & Controls RX3i or a third-party equivalent. All sourced units are accompanied by documentation of origin and test records.

Quality Control for the Series Six (6K) Range

Series Six modules present specific test challenges due to their parallel backplane bus architecture and age-related component degradation. DriveKNMS applies the following verification procedures to all Series Six units prior to dispatch:

• Backplane bus continuity test: All backplane connector pins are verified for continuity and correct impedance against reference values for the Series Six bus specification.
• Power rail verification: 5 VDC and ±15 VDC rails are measured under load to confirm regulation within ±2% tolerance.
• Analog channel calibration (for AI/AO modules): Each analog channel on modules such as the 6KAV143003Y1D1 is stimulated across the full input range (0–10 VDC, ±10 VDC) and output values are compared against a calibrated reference meter. Channels deviating beyond ±0.1% full-scale are flagged for component-level repair.
• Digital I/O functional test: All discrete channels are exercised through a full ON/OFF cycle. Optocoupler isolation resistance is measured to confirm no degradation below 100 MΩ.
• Communication module loopback test: Genius bus and serial communication modules are tested in loopback configuration to verify frame integrity and error-free transmission at rated baud rates.
• Thermal soak: Units are operated at 50°C for a minimum of 4 hours to screen for latent thermal failures common in aged electrolytic capacitors.

© 2026 DriveKNMS. All trademarks belong to their respective owners. Specifications are for reference only and subject to change without notice. Verify all parameters against official documentation before installation.