ABB HEIR318072R0002 UNS0024b Replacement for HESG Series

Product Overview

ABB HEIR318072R0002 UNS0024b: Seamless Replacement & Upgrade Solution for HESG Series

The ABB HEIR318072R0002 UNS0024b is a conduction monitoring sub-module designed for the ABB HESG Series distributed control system platform. As legacy HESG installations age and original spare parts become increasingly difficult to source, this module serves as the authoritative direct replacement — preserving your existing wiring infrastructure, rack geometry, and communication architecture without requiring a full system overhaul. Whether you are managing a planned maintenance window or responding to an unplanned failure of a discontinued component, the HEIR318072R0002 UNS0024b delivers a validated, drop-in upgrade path that minimizes engineering rework and reduces total downtime exposure.

Industrial facilities running ABB HESG-based control cabinets frequently encounter obsolescence challenges across the broader module family. The HEIR318072R0002 UNS0024b integrates directly into the same backplane slot as its predecessor, maintaining full compatibility with the HESG316 processor board and associated I/O sub-modules. Field engineers report that no re-termination of existing signal cables is required in the vast majority of installations, as the module preserves the original terminal assignment and connector pinout. This is a critical advantage when working within tight control cabinet enclosures where rewiring would introduce significant labor cost and risk.

From a communication protocol standpoint, the UNS0024b variant maintains native compatibility with the ABB Advant fieldbus (AF100) and PROFIBUS DP segments commonly deployed in HESG-era architectures. Plants that have partially migrated to ABB System 800xA or ABB Freelance controller platforms can continue to operate legacy HESG sub-racks in hybrid configurations, with the HEIR318072R0002 UNS0024b functioning as a stable monitoring node within the mixed-generation system. This interoperability is particularly valuable during phased migration projects where a full cutover is not operationally feasible.

Power supply compatibility is another key consideration for retrofit projects. The HEIR318072R0002 UNS0024b operates within the standard HESG rack power envelope, accepting the 24 VDC bus voltage distributed by the HESG316 power supply module. No auxiliary power conditioning is required, and the module’s low thermal dissipation profile ensures it does not exceed the thermal budget of densely populated control cabinets. For installations where the original NTDI09 or NTDI90 I/O termination units are still in service, the UNS0024b interfaces correctly without adapter hardware.

During system commissioning and post-replacement verification, the module supports standard ABB diagnostic routines accessible through ABB Control Builder and legacy Advant Station 500 Series engineering workstations. Fault codes, conduction status registers, and channel diagnostics are fully readable via the existing engineering interface, eliminating the need for specialized test equipment or firmware updates on the host controller. This significantly reduces the skill requirement for on-site commissioning personnel and shortens the verification phase of any planned maintenance outage.

For procurement teams evaluating replacement strategies, TOPNLMS maintains verified stock of the HEIR318072R0002 UNS0024b sourced from authorized distribution channels. Each unit undergoes functional verification prior to dispatch, and all modules are shipped with original manufacturer packaging where available. Lead times from our Xiamen warehouse to major industrial hubs in Europe, Southeast Asia, and the Middle East are typically 3–7 business days via DHL Express or FedEx International Priority, with full tracking provided from point of dispatch.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful HESG system migration rarely involves a single module in isolation. In practice, the HEIR318072R0002 UNS0024b is most commonly sourced alongside a broader set of components that collectively restore or modernize the control architecture. The HESG316 processor module is the most frequent companion purchase, as aging CPUs in the same rack often exhibit correlated failure modes with monitoring sub-modules. Similarly, the NTDI09 digital input termination unit and NTDI90 analog input termination unit are frequently replaced in the same maintenance cycle to eliminate latent wiring faults that can trigger false conduction alarms.

For facilities upgrading their communication backbone, the ABB NCOM01 communication module and PROFIBUS DP repeater units are often integrated during the same outage window to extend network reach or improve segment isolation. Power integrity is another common concern: the HESG316 power supply module and associated 24 VDC redundant power units are evaluated as part of any comprehensive HESG health assessment. Where HMI modernization is also on the project scope, the ABB CP600 operator panel series provides a compatible front-end that can be configured to communicate with retained HESG sub-racks during a phased transition. Signal isolation requirements are addressed by ABB RISH series signal isolators, which are commonly inserted between legacy field wiring and new I/O modules to protect against ground loop interference during the cutover period.

Retrofit Guidance FAQ

Q: Do I need to modify existing field wiring when installing the HEIR318072R0002 UNS0024b?
A: In standard HESG configurations, no wiring modification is required. The module preserves the original terminal assignment and connector pinout of the predecessor unit. Verify your specific sub-rack revision against the HESG316 wiring diagram before installation.

Q: Is the UNS0024b firmware variant compatible with my existing Control Builder project?
A: Yes. The UNS0024b hardware revision is recognized by both legacy Advant Station 500 Series engineering tools and current ABB Control Builder versions. No project file modification or re-download is required in most cases; however, a forced re-initialization of the module address is recommended after physical replacement.

Q: Can this module operate on a PROFIBUS DP segment alongside newer ABB AC500 or AC800M controllers?
A: The HEIR318072R0002 UNS0024b is designed for the HESG platform’s native AF100 fieldbus. In hybrid architectures where PROFIBUS DP bridging is implemented via an ABB CI854 or CI857 communication interface module, the HESG sub-rack can participate in a mixed-generation network. Consult your system integrator for segment load calculations.

Q: What is the physical installation clearance requirement?
A: The module occupies a standard HESG sub-module slot with no additional side clearance beyond the original design. Ventilation requirements are identical to the predecessor unit. No cabinet modification, DIN rail adaptation, or mounting bracket is required.

Q: How do I verify correct operation after replacement?
A: After seating the module and restoring rack power, use the ABB diagnostic tool to read the module status register. A green LED on the module front panel and a “Module OK” status in the engineering interface confirm successful initialization. Run a full I/O channel scan and compare conduction readings against your baseline commissioning records.

Warranty Assurance

Every ABB HEIR318072R0002 UNS0024b dispatched by TOPNLMS is covered by a 12-month replacement warranty from the date of delivery. Prior to shipment, each unit is subjected to a functional verification procedure that confirms power-up integrity, communication interface response, and channel monitoring output within specification. Units that do not pass verification are quarantined and not offered for sale.

In the event of a warranty claim, TOPNLMS provides a replacement unit dispatch within 2 business days of fault confirmation, with no requirement to return the defective unit before the replacement is shipped for critical production environments. Our after-sales response team is reachable via email at [email protected] and by phone at +86 18359293191 during business hours (UTC+8). Detailed fault documentation, including installation photos and diagnostic readouts, accelerates claim processing.

For procurement managers requiring formal documentation, TOPNLMS can provide a certificate of conformity, packing list, and commercial invoice compliant with customs requirements for import into the EU, ASEAN, and GCC regions. All export shipments are classified under the correct HS code for industrial electronic control modules, and we assist with any documentation queries prior to order confirmation.