ABB SNAT-7120 Circuit Board – SNAZ7120J Series
ABB SNAT-7120 SNAZ 7120 J SNAZ7120J is listed for SNAZ7120J Series RFQ review. Confirm quantity, condition and destination before quotation.
Model: DSTDW130 57160001-YX
Product Overview
Commercial availability is handled through direct RFQ, model verification and export-oriented follow-up rather than public cart checkout.
Datasheet Preview
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Commercial Path
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Technical Dossier
The ABB DSTDW130 (57160001-YX) is a relay input module belonging to the ABB Advant Controller 450 (AC450) Distributed Control System platform — one of the most widely deployed process automation architectures in global heavy industry. The AC450 system, and its associated DSDT/DSTD I/O module family, maintains a significant installed base across petrochemical refineries, nuclear power generation facilities, pulp and paper mills, offshore oil and gas platforms, and large-scale chemical processing plants. The DSTDW130 specifically handles relay-type discrete input signals, interfacing field-level switching devices with the AC450 controller backplane via the Advant Fieldbus 100 (AF100) communication infrastructure. Its continued demand in the aftermarket reflects the long operational lifecycles typical of DCS installations in regulated industries, where system replacement cycles often span 20–30 years.
The Advant Controller 450 platform was introduced by ABB in the late 1980s as a successor to the MASTER series controllers, designed to address the growing demand for distributed, modular process control in continuous-process industries. The AC450 architecture is built around a dual-redundant processor module (PM450), a high-speed internal bus (S100 I/O bus), and the external Advant Fieldbus 100 (AF100) for distributed I/O communication. The DSDT/DSTD I/O module family — of which the DSTDW130 is a member — was engineered to provide galvanically isolated, field-hardened signal conditioning for a wide range of process signals including analog inputs/outputs, digital inputs/outputs, relay outputs, and pulse counting.
Over successive hardware revisions, ABB refined the backplane connector design, improved EMC shielding, and updated the onboard EEPROM firmware to address compatibility issues with later AF100 revisions. By the mid-2000s, the AC450 platform entered its mature/end-of-active-development phase. ABB's migration path leads toward the System 800xA platform (with AC800M controllers and S800 I/O), though the AC450 remains in active service at thousands of sites globally. For operators maintaining AC450 installations, sourcing original DSDT/DSTD modules — including the DSTDW130 — from qualified aftermarket suppliers is the primary strategy for lifecycle extension without full system migration.
The following SKUs represent verified modules within the ABB AC450 / Advant Controller ecosystem. Each entry reflects a distinct functional role within the system architecture.
Controllers & Processors
Digital Input Modules
Digital Output / Relay Output Modules
Analog Input Modules
Analog Output Modules
Communication & Fieldbus Adapters
Power Supply Modules
The DSTDW130 and related DSDT-family modules present specific quality verification challenges due to their relay-based signal architecture and S100 backplane communication interface. DriveKNMS applies the following test protocol to all AC450 I/O modules:
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