5X00238G01 Series(5X00238G06)Terminal Base Unit / I/O Terminal Block Assembly for Emerson Ovation DCS
June 12, 2026

5X00238G01 Series(5X00238G06)Terminal Base Unit / I/O Terminal Block Assembly for Emerson Ovation DCS

The 5X00238G06 is a dedicated field wiring terminal base unit (terminal carrier assembly) belonging to the 5X00238 series from Emerson (ex-Westinghouse) Ovation DCS, matched to corresponding pluggable electronic I/O main modules (AI/AO/DI/DO/RTD/HART modules). It undertakes external field instrument cable termination, signal splitting, field power distribution and wiring isolation functions, serving as the physical wiring bridge between field on-site sensors/actuators and the backplane-mounted I/O electronic module. G06 is a specific revision variant of this terminal base, optimized for wiring layout, terminal clamping structure and anti-loosening design, supporting online hot swapping of the upper I/O electronic module under specified safe operation conditions.

Description

1. Basic Product Information

  • Part Number: 5X00238G06

  • Manufacturer: Emerson Automation Solutions (Former Westinghouse)

  • Product Type: I/O wiring terminal base unit (field wiring carrier)

  • Matching object: Ovation standard single-slot I/O electronic modules (AI/AO/DI/DO/RTD/HART main modules + personality modules)

  • Installation Mode: Fixed installation on DIN rail inside control cabinet; upper side docks and locks with I/O electronic module

  • Maintenance feature: Supports hot swap of upper electronic I/O module one piece at a time when rack logic power is energized; non-sparking field circuits must be fully de-energized before plugging/unplugging the entire terminal base assembly

  • Protection Grade: IP20, exclusively used inside indoor DCS control cabinets

  • Structure: Integrated terminal strip + locking buckle + internal signal jumper circuit, standard FRU spare part

  • Origin: United States

2. Core Technical Specifications & Functional Features

2.1 Field Wiring Termination Function

  • Equipped with dense screw-type wiring terminals, compatible with multi-core shielded cables commonly used in industrial sites; independent terminals reserved for signal positive/negative, shield grounding, loop power supply and lead compensation wiring

  • Built-in fixed internal signal jumper circuit, no on-site manual jumper modification required; directly matches the channel definition of the upper I/O module

  • Supports centralized bus-type field power distribution, can cascade and share 24VDC field loop power among multiple adjacent terminal bases

2.2 G06 Version Upgrade Highlights

  1. Optimized terminal screw anti-loosening structure, effectively preventing cable loosening caused by long-term cabinet fan vibration and thermal expansion & contraction;

  2. Reinforced module locking buckle, tighter docking with upper I/O electronic module, stable gold finger contact;

  3. Added independent terminal grounding copper bar, convenient unified shielding grounding construction for instrument cables, enhanced EMC interference suppression effect;

  4. Pin-to-pin fully backward compatible with earlier G01/G02/G03/G04/G05 versions of the 5X00238 series, direct replacement without secondary wiring modification during renovation.

2.3 Electrical Safety & Protection Design

  • Isolation barrier design between adjacent channel terminals, preventing accidental short-circuit during wiring construction;

  • Each channel reserves space for external small fuses, convenient single-channel loop overload protection configuration;

  • Clear terminal number silk printing consistent with I/O module channel numbering, convenient on-site wiring inspection and later loop troubleshooting;

  • Built-in wiring surge diversion path, cooperates with upper I/O module to suppress field lightning induction and instantaneous voltage surge.

2.4 Environmental & Certification Indicators

  • Operating Temperature Range: 0℃ ~ +60℃

  • Storage Temperature Range: -40℃ ~ +85℃

  • Relative Humidity: 5%–95% RH, non-condensing

  • Complies with IEC 61000 series industrial EMC electromagnetic compatibility standards;

  • Passed CE, UL international industrial safety certifications, meets power plant and petrochemical site safety wiring specifications.

2.  Safe Operation Specification

  • Only one upper I/O electronic module can be plugged/unplugged at a time with system power on; simultaneous replacement of multiple modules is forbidden;

  • Intrinsically safe explosion-proof loops and AC power-containing non-sparking field circuits must cut off field power completely before disassembly;

  • The terminal base itself does not support live hot removal; only the docked upper electronic module allows single-card online replacement.

3. Application Fields

This wiring terminal base unit is the essential field wiring matching accessory of Ovation DCS I/O layer, widely deployed in thermal power generating units, combined-cycle power plants, oil refineries, natural gas transmission stations, metallurgical plants, municipal water supply & wastewater treatment plants and other continuous process industries.
It completes fixed termination of temperature, pressure, flow, liquid level measuring instruments and valve actuator cables, establishes stable wiring connection between field equipment and cabinet internal I/O modules, standardizes construction wiring specifications, greatly reduces wiring error rate and later maintenance difficulty, and provides reliable wiring guarantee for long-term stable operation of DCS measurement and control loops.


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