GE Mark VIe IS220P Series Modules: IS220PPRAH1A

Technical Dossier

Product Details And Specifications

GE Mark VIe IS220P Series Technical Notes

The Evolution of IS220P Architecture

The IS220P series was introduced as part of the Mark VIe platform launch in the early 2000s, succeeding the Mark VI (IS200 series) and Mark V (DS200 series) control architectures. The transition from Mark VI to Mark VIe introduced a shift from VME-bus backplane topology to the proprietary IONet Ethernet-based I/O network, enabling distributed I/O placement across turbine enclosures without dedicated I/O racks adjacent to the controller. IS220P modules communicate via the IONET protocol over 100BASE-TX Ethernet, with redundant network paths supported through dual-port configurations on select modules. Hardware revision levels (suffix characters such as A, B, C appended to base part numbers) reflect incremental changes to FPGA firmware, component sourcing, and EMC compliance updates — earlier revisions remain backward-compatible with Mark VIe R04.x through R07.x software releases, while later revisions may require minimum software version R05.2 or above. As the Mark VIe platform has entered its mature/sustaining lifecycle phase, GE has transitioned new turbine projects to the Mark VIe-IS (Integrated System) and Mark VIe-E architectures; however, the IS220P series remains the dominant installed-base module family requiring long-term spare parts support through 2035 and beyond.

IS220P Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked modules within the GE Mark VIe IS220P series, classified by functional category:

Analog & Process I/O Modules

• IS220PPRAH1A: Analog I/O module, 16-ch 4–20 mA process input/output with HART pass-through capability
• IS220PPROH1A: Analog output module, 8-ch isolated 4–20 mA current output for final control elements
• IS220PPRIH1A: Analog input module, 16-ch differential voltage/current input, ±10 V / 4–20 mA selectable
• IS220PTCCH1A: Thermocouple input module, 16-ch universal TC input (J, K, T, E, R, S, B types), cold-junction compensated
• IS220PRTDH1A: RTD input module, 8-ch 3-wire/4-wire PT100/PT1000 resistance temperature detector input
• IS220PVIBH1A: Vibration monitoring module, 8-ch dynamic signal input for proximity probes and accelerometers per API 670

Digital I/O Modules

• IS220PDIAH1A: Digital input module, 24-ch 24 VDC discrete input, wet contact, optically isolated
• IS220PDOAH1A: Digital output module, 16-ch 24 VDC sourcing output, 0.5 A per channel, short-circuit protected
• IS220PDIOH1A: Mixed digital I/O module, 16 DI / 8 DO, 24 VDC, for compact I/O node configurations
• IS220PDIBH1A: Digital input module, 48-ch high-density 24 VDC discrete input for large contact arrays
• IS220PDOCH1A: Digital output module, 32-ch 24 VDC, relay-driven contact output variant for solenoid valve applications

Communication & Network Modules

• IS220PCOMH1A: Communication gateway module, Modbus RTU/TCP and DNP3 protocol bridge for legacy field device integration
• IS220PSCAH1A: Serial communication adapter, RS-232/RS-485 dual-port for third-party device interfacing
• IS220PENET1A: Ethernet network interface module, dual 100BASE-TX IONET ports with managed switch functionality

Power Supply & Backplane Modules

• IS220PPWRH1A: Power supply module, 24 VDC regulated output, 10 A, for IS220P I/O node backplane power distribution
• IS220PBPSH1A: Backplane segment module, 8-slot passive backplane for IS220P I/O node expansion