GE Fanuc DS215 Modules - DS215UCIAG1AZZ05A

Technical Dossier

Product Details And Specifications

GE Fanuc DS215 Series Technical Notes

The GE Fanuc DS215 series constitutes the core I/O, control, and communication module family of the Mark V Turbine Control System (TCS), one of the most widely deployed distributed control platforms in heavy industrial environments globally. Installations span gas turbine power generation plants, combined-cycle facilities, petrochemical refineries, LNG terminals, and nuclear auxiliary systems across North America, Europe, the Middle East, and Asia-Pacific. The Mark V platform—and by extension the DS215 module family—remains operational in thousands of baseload and peaking power stations, many of which are committed to multi-decade operational lifespans. The DS215 series provides the physical hardware layer for turbine protection, sequencing, I/O conditioning, and inter-panel communication within the Mark V R, S, and T redundant control cores.

The Evolution of DS215 Architecture

The DS215 module family was introduced alongside the GE Fanuc Mark V platform in the early 1990s as a successor to the Mark IV system. The architecture is built around a proprietary backplane bus—the IONET serial communication network—which interconnects all I/O and processor modules within a Mark V panel. Early DS215 revisions (suffix codes A1A, A1B) established the baseline electrical and firmware specifications. Subsequent revisions introduced improved EMI shielding, enhanced EEPROM capacity, and revised conformal coating standards for high-humidity environments.

DS215 Full Catalog & Functionalities (SKU List)

Controllers & Processors

• DS215TCEAG1BZZ01A: Turbine Control Ethernet Adapter, Mark V IONET-to-Ethernet bridge module.
• DS215UCIAG1AZZ05A: Universal Control Interface, primary CPU/sequencing processor for Mark V R/S/T cores.
• DS215SDCIAG1AZZ01A: Simplex Distributed Control Interface, single-core control processor variant.
• DS215CPCIAG1AZZ01A: Central Processor & Communication Interface, handles inter-panel IONET arbitration.
• DS215DMCAG1AZZ01A: Distributed Motor Control Adapter, interfaces Mark V to motor control centers.

Analog & Digital I/O Modules

• DS215AIDAG1AZZ01A: Analog Input module, 16-channel, 4–20 mA / 1–5 V DC, for process variable acquisition.
• DS215AODAAG1AZZ01A: Analog Output module, 8-channel, 4–20 mA, for valve positioner and actuator drives.
• DS215DIDIAG1AZZ01A: Digital Input module, 32-channel, 24 V DC discrete contact sensing.
• DS215DODOAG1AZZ01A: Digital Output module, 16-channel, relay-isolated discrete output for solenoid and alarm circuits.
• DS215TBAIG1AZZ01A: Terminal Board Analog Input, field-wiring termination board for thermocouple and RTD inputs.
• DS215TBAIAG1AZZ01A: Terminal Board Analog Input (enhanced), supports J, K, T, E thermocouple types with CJC.
• DS215TBDOAG1AZZ01A: Terminal Board Digital Output, relay contact termination board, 24 V DC / 120 V AC rated.

Communication & Network Adapters

• DS215SLCCG1AZZ01A: Serial Link Communication Controller, RS-422/RS-485 multi-drop serial interface for HMI and historian connectivity.
• DS215GDDAG1AZZ01A: Global Data Distribution Adapter, peer-to-peer data exchange between Mark V panels via coaxial IONET.
• DS215PCIAG1AZZ01A: Panel Communication Interface Adapter, manages inter-panel voting logic data exchange in TMR configurations.

Power Supply Modules

• DS215PSDAG1AZZ01A: Power Supply Distribution module, 125 V DC to regulated 5 V / 15 V DC for backplane rail distribution.
• DS215PSMAG1AZZ01A: Power Supply Monitor module, supervises rail voltages and generates under-voltage trip signals.