GE Fanuc VersaMax IC200ALG326 Modules

Technical Dossier

Product Details And Specifications

GE Fanuc VersaMax Series Technical Notes

The GE Fanuc VersaMax series is a modular, rack-based programmable logic controller (PLC) platform deployed across heavy industrial sectors including petrochemical refining, nuclear power generation, offshore oil & gas, pulp and paper, and continuous process manufacturing. Its distributed I/O architecture and compatibility with GE's PACSystems ecosystem have made it a long-term fixture in plant-floor automation infrastructure globally. The IC200ALG326 is a 4-channel analog output module within this platform, providing 0–10V or 4–20mA configurable output signals for process control loops, valve positioners, and variable-speed drive references.

The Evolution of VersaMax Architecture

The VersaMax platform was introduced by GE Fanuc Automation in the mid-1990s as a successor to the Series 90 Micro and Series 90-30 distributed I/O systems. Its initial architecture centered on a standalone CPU module (IC200CPUE05) with a local rack and remote I/O expansion via the Genius Bus or Profibus-DP. In the early 2000s, GE introduced the VersaMax Nano and Micro sub-families for compact standalone applications, while the main VersaMax rack system was extended with EtherNet/IP and DeviceNet communication adapters. By 2010, GE's PACSystems RX3i platform began absorbing VersaMax's role in new installations, but the VersaMax installed base remained dominant in brownfield sites due to its backward-compatible I/O bus. As of 2026, the VersaMax series is in a mature/end-of-active-development lifecycle phase. GE (now part of Emerson's automation portfolio following various divestitures) continues to provide limited firmware support, but new hardware production has been discontinued for most modules. Long-term maintenance of VersaMax installations now depends on certified aftermarket suppliers and refurbished spare parts channels.

VersaMax Full Catalog & Functionalities (SKU List)

CPU & Controller Modules

• IC200CPUE05: VersaMax CPU, 14KB user memory, Ethernet port, standalone rack controller
• IC200CPUE05S: Enhanced CPU variant with expanded diagnostics and safety-rated firmware support
• IC200CPU001: Base VersaMax CPU, serial port only, 6KB program memory, legacy installations
• IC200CPU002: CPU with expanded 10KB memory and dual serial ports for multi-drop networks

Analog Input Modules

• IC200ALG230: 4-ch analog input, 0–10V / 4–20mA, 12-bit resolution, configurable per channel
• IC200ALG240: 8-ch analog input, voltage/current selectable, high-density process monitoring
• IC200ALG260: 4-ch thermocouple input module, J/K/T/E/R/S/B type, cold junction compensation
• IC200ALG264: 4-ch RTD input, PT100/PT1000, 3-wire configuration, temperature measurement

Analog Output Modules

• IC200ALG320: 2-ch analog output, 0–10V or 4–20mA, 12-bit DAC, single-ended output
• IC200ALG326: 4-ch analog output, 0–10V or 4–20mA selectable, 12-bit resolution, process setpoint reference
• IC200ALG328: 8-ch analog output, high-density valve and drive reference applications

Digital Input Modules

• IC200MDL640: 16-ch 24VDC digital input, sink/source configurable, standard field wiring
• IC200MDL650: 32-ch 24VDC digital input, high-density, dual-connector terminal block
• IC200MDL730: 8-ch 120VAC digital input, isolated, for legacy AC field devices

Digital Output Modules

• IC200MDL740: 8-ch relay output, 2A per channel, NO contacts, mixed voltage field wiring
• IC200MDL741: 16-ch relay output, 2A per channel, high-density relay switching applications
• IC200MDL750: 16-ch 24VDC transistor output, sourcing type, fast switching for solenoids

Communication & Network Adapters

• IC200PBI001: Profibus-DP slave adapter, 12Mbps, connects VersaMax I/O to Profibus master networks
• IC200ETM001: EtherNet/IP adapter module, 10/100Mbps, SRTP and Modbus TCP protocol support
• IC200GBI001: Genius Bus Interface Unit, legacy GE Genius network integration for brownfield sites

Power Supply Modules

• IC200PWR002: 24VDC input power supply, 30W output, standard VersaMax rack power
• IC200PWR101: 120/240VAC input power supply, 30W, universal input for global installations

Quality Control for the VersaMax Range

VersaMax modules use a proprietary backplane bus for inter-module communication within the rack. Functional testing of VersaMax I/O modules requires rack-level energization with a compatible CPU and power supply to validate backplane communication integrity, not just standalone power-on checks. DriveKNMS applies the following test protocol to all VersaMax units: (1) Visual inspection for PCB damage, capacitor condition, and connector pin integrity. (2) Rack-level power-on test with IC200PWR002 or IC200PWR101 supply and IC200CPUE05 CPU. (3) Channel-by-channel I/O verification using calibrated signal sources and measurement equipment — for the IC200ALG326, each of the 4 output channels is verified at 0%, 25%, 50%, 75%, and 100% of full-scale range in both voltage and current output modes. (4) Communication bus integrity check via GE's Proficy Machine Edition diagnostic tools. (5) Burn-in cycle under load for a minimum of 4 hours prior to packaging. Units that fail any stage are quarantined and not offered for sale.