ABB 3ASC25H204 DAPU100
The ABB 3ASC25H204 DAPU100 is a 32-channel analog input board used in ABB’s legacy Advant OCS / S100 I/O process-control architecture. ABB identifies it as an I/O module / analog input board, with the catalog description “DSAI 133A Analog Input Board, 32 Channels.”
Product Positioning
3ASC25H204 DAPU100 is a high-density analog signal acquisition module. Its role is to collect continuous analog signals from field instruments—such as transmitters and sensors—and make those measurements available to the higher-level control system.
It is primarily associated with ABB Advant Master / Advant OCS systems, rather than being a modern S800 I/O module.
Core Functions
- 32 analog input channels
- Acquires process measurements from field devices
- Converts analog measurements into digital values for controller processing
- Provides high channel density for process-control applications
- Supports integration into ABB’s legacy Advant control architecture
- Suitable for monitoring variables such as pressure, flow, level, temperature and other process measurements
ABB-related product listings consistently identify the unit as a 32-channel analog input board.
Design Features
High channel density
With 32 analog inputs in one board, the DSAI 133A is designed for applications requiring many measurement points while minimizing cabinet space.
Legacy-system compatibility
Its principal value today is maintaining or replacing hardware in installed ABB Advant OCS / S100 I/O systems.
Industrial signal acquisition
The board is intended for continuous process signals rather than discrete ON/OFF signals.
Important: Online sources disagree considerably on the detailed electrical specifications—particularly input ranges, resolution and isolation. For engineering replacement, the ABB hardware documentation and the exact board revision should be treated as authoritative rather than relying on reseller specifications.
Hardware Composition
| Item | Description |
|---|---|
| Manufacturer | ABB |
| Model | 3ASC25H204 DAPU100 |
| Order No. | 3BSE018290R1 |
| Product type | Analog Input Board / I/O Module |
| Number of channels | 32 |
| System family | ABB Advant OCS / S100 I/O |
| Net weight | Approx. 0.29 kg |
| Dimensions reported by ABB-derived listings | Approx. 324 × 225 × 22.5 mm |
The 32-channel designation and the 0.29 kg net weight are consistently reported across multiple listings.
Typical Applications
The DSAI 133A can be encountered in legacy ABB control installations such as:
- Power generation
- Chemical and petrochemical plants
- Oil & gas
- Water and wastewater treatment
- Mining and metals
- Pulp and paper
- General process automation
Its typical function is to bring large numbers of analog field measurements into the ABB control system for process monitoring, regulation and closed-loop control.
Maintenance Considerations
For replacement or maintenance, pay particular attention to:
- Exact part number: 3BSE018290R1
- Board revision / hardware revision
- System compatibility: Advant OCS / S100 I/O configuration
- Channel wiring and termination
- Input signal type and configured ranges
- Status/diagnostic indications
- Condition of connectors and backplane/interface hardware
Because this is legacy automation hardware, form-factor compatibility alone is not sufficient. The replacement board should be verified against the existing system configuration.
Overall Evaluation
The ABB 3ASC25H204 DAPU100 is best viewed as a legacy, high-density 32-channel analog input board for ABB Advant process-control systems. Its main importance today is in plant maintenance, system expansion and replacement of obsolete Advant/S100 I/O hardware.
Identification:
ABB DSAI 133A → 3BSE018290R1 → Analog Input Board → 32 Channels → Advant OCS / S100 I/O.
Main Brand:
ABB Allen-Bradley Alstom Bently GE MOOG
Schneider Woodward HIMA Honeywell Emerson Foxboro
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•Shipping Port: Xiamen
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•Package: Original packing with cartons
Our Main Brands
DCS/PLC/TSI Manufacturers:
ABB, GE, Allen Bradley, Honeywell, Emerson, Bently Nevada, Prosoft, Siemens, Westinghouse, Triconex, Foxboro, ICS Triplex, Hima, Schneider, Yokogawa, Woodward, B&R, KEBA, etc.
Product Categories & Models
1. Distributed Control System (DCS)
- ABB:3AUA0000110429, SYSCON2 746924
- Invensys Foxboro:FBM214, FBM242, B0123HE
- Invensys Triconex:3625, 3700A, 3604E
- Woodward:5462-758B
- HIMA:F2-DO-16-02, F8650E
- Yokogawa:SAI143-S03 S1, F9342L-02
- Honeywell:51402497-200, 51403519-160, 51199194-100, CC-PDO801
- Emerson:KJ4001X1-NB1, 12P3368X012
2. Programmable Logic Controller (PLC)
- Rockwell/Allen Bradley:1734-IB8, 1734-OB8, 1769-L18ER-BB1B, 1756-IM16I
- ICS Triplex:T8461, T8850, T8403, T8431, T8831, T8310
- Schneider Modicon:140DDI85300
- GE Fanuc:IS210AEPSG2B, IS220UCSAH1A, IS215ACLEH1A, IS210AEAAH1B
- Siemens:6ES7331-1KF02-0AB0
- Prosoft:MVI46-DFNT
- Bachmann:MPC240
- Woodhead:9905-068 2301A
3. Turbine Supervisory Instrumentation (TSI)
- Bently Nevada:3500/22M, 138607-01, 3500/25, 3500/53, 3500/32M 149986-02
- EPRO:MMS6110, MMS6120, MMS6220, MMS6312, MMS6410, 6423, 6424
- ENTEK:EK C6622HS, XM124, 1440-SDM02-01RA
Frequently Asked Questions (FAQ)
Delivery & Shipping
Q: What is the earliest time you can make delivery?
A: Delivery is processed immediately upon receipt of payment.
Returns & Warranty
Q: If the product doesn’t work, can it be returned?
A: Yes, we provide a one-year warranty for all products.
Product Availability
Q: How easy is it to obtain items?
A: These items are no longer in continuous production, making supply limited. However, SAUL specializes in sourcing hard-to-find products. While lead times vary, the average delivery window is 5-7 business days.
Pricing
Q: What is the typical price for the items?
A: SAUL ELECTRIC offers highly competitive pricing while maintaining excellent service. Final pricing may vary based on delivery requirements and availability.
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