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Key Technical Specifications
ABB DSDI110A (57160001-AAA)
| Parameter | Value |
|---|---|
| Part Number | 57160001-AAA |
| Type Designation | DSDI 110A |
| Module Type | Digital Input Board |
| Number of Channels | 32 (4 × 8 groups) |
| Input Voltage | 24 V DC |
| Isolation | Opto-isolated, event-detection capable |
| Control Mode | Scanning or interrupt-controlled |
| Platform | ABB Advant OCS, S100 I/O subrack |
| Dimensions (H × W × D) | ~225 mm × 18 mm × (rack depth per S100) |
| Weight | 0.34 kg |
| Certifications | CE (RoHS-exempt per documentation) |
| Typical Use | Discrete field signals: switches, proximity sensors, status contacts |
ABB DSDI131 (57160001-GV)
| Parameter | Value |
|---|---|
| Part Number | 57160001-GV |
| Type Designation | DSDI131 |
| Module Type | Digital Input Module |
| Input Voltage | 115 V AC nominal |
| Number of Channels | 16 (typical for 115 VAC variant) |
| Isolation | Optical isolation (field-to-backplane) |
| Platform | ABB Advant OCS, MOD 300 DCS |
| Dimensions (H × W × D) | ~102 mm × 86 mm × 58 mm (varies by listing) |
| Weight | ~0.24–0.30 kg |
| Operating Temperature | −20°C to +60°C |
| Typical Use | High-voltage discrete inputs: motor contactors, HV switches, status feedback |
ABB DSTD150A (57160001-UH)
| Parameter | Value |
|---|---|
| Part Number | 57160001-UH |
| Type Designation | DSTD 150A |
| Module Type | Connection Unit for Digital Input Board |
| Number of Channels | 32 |
| Max Voltage | 60 V (field side) |
| Platform | ABB Advant / MOD 300 digital input boards |
| Function | Field termination and signal routing to DI board |
| Weight | ~0.255 kg |
| Dimensions (H × W × D) | ~134 mm × 56 mm × 70 mm |
| Typical Use | Termination unit paired with DSDI-type digital input boards |
Product Introduction
The ABB 57160001 series covers digital input boards and connection units used in Advant OCS, MOD 300, and S100 I/O architectures. The 57160001-AAA (DSDI110A) is a 32-channel 24 VDC digital input board with opto-isolation and event-detection, commonly deployed in power, oil & gas, and pulp & paper plants.
The 57160001-GV (DSDI131) handles 115 VAC discrete inputs for higher-voltage field devices, while the 57160001-UH (DSTD150A) is a 32-channel connection/termination unit rated up to 60 V that interfaces field wiring to the digital input board. These modules are chosen for their proven reliability in legacy DCS installations where replacement availability is critical.
57160001-AAA
57160001-AAA
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No LEDs on power-up | Backplane power or I/O subrack supply failure | ❌ Low | Measure 24 V DC (or 115 VAC as applicable) at subrack power terminals with multimeter | Check PSU, fuses, and subrack power distribution before replacing board |
| All inputs read “0” or frozen | Field wiring fault or termination unit issue | ⚠️ Medium | Verify voltage at DSTD150A or field terminal block for each channel | Issue is likely at wiring or termination unit, not the DI board itself |
| Intermittent channel dropouts | Loose ribbon cable or backplane contact | ⚠️ Medium | Reseat DI board and ribbon cables; inspect backplane pins for corrosion | Clean contacts, reseat firmly; replace only if problem persists after reseating |
| Single channel stuck ON/OFF | Field device failure or wiring short/open | ❌ Low | Measure field voltage at terminal for that channel; disconnect field device and test | Replace or repair field device/wiring; DI board likely OK |
| ERR or COMMS LED flashing | Board not communicating with controller | ✅ High | Read diagnostic buffer in Advant OCS/MOD 300 engineering tool | Usually requires board replacement or configuration check |
| Board fails after swap | Wrong voltage type (24 VDC vs 115 VAC) or revision mismatch | ✅ High | Compare old board label (voltage, part number suffix) before removal | Match exact part number and voltage rating on replacement |
If you’re stuck, send photos of the board label, subrack slot, and any diagnostic logs from the DCS. We’ll review them before you commit to a swap.
Frequently Asked Questions (FAQ)
Q: Is the 57160001-AAA (DSDI110A) hot-swappable?
A: No. The S100 I/O boards in Advant OCS are not designed for hot-swap. Pulling or inserting them under power can damage the backplane or adjacent cards. Follow your plant’s approved procedure—usually this means taking the subrack or controller offline before swapping.
Q: What’s the difference between 57160001-AAA, 57160001-GV, and 57160001-UH?
A:
- 57160001-AAA (DSDI110A): 32-channel 24 VDC digital input board.
- 57160001-GV (DSDI131): 115 VAC digital input module (typically 16 channels).
- 57160001-UH (DSTD150A): 32-channel connection/termination unit (up to 60 V) used with DI boards.
They are not interchangeable—each serves a different voltage level and function.
Q: Can I use these modules in non-ABB DCS systems?
A: No. These boards and termination units are built for ABB Advant OCS, MOD 300, and S100 I/O backplanes and communication architecture. They won’t work in Allen-Bradley, Siemens, or other vendor racks.
Q: Will my configuration and tag mapping survive a board swap?
A: Yes. The logic, tag mapping, and scaling live in the DCS database, not on the DI board itself. As long as you replace it with the same model and keep wiring identical, the database remains valid. Always back up your area database before hardware changes.
Q: Why is this cheaper than buying direct from ABB?
A: This is new surplus or inspected stock from decommissioned systems and authorized distributors. It’s genuine ABB hardware, function-tested, but sold as surplus rather than factory-direct new. That’s why the price is lower while still carrying a 1-year replacement warranty.
Q: What condition is the unit in—new, used, or refurbished?
A: We list each unit explicitly: “New Original / New Surplus” means factory-sealed or unused surplus with original packaging; “Refurbished (tested)” means cleaned, electrically tested, and verified functional on an Advant OCS/MOD 300 test rig. The product page or quote will state which applies.
Q: Do you provide test reports or power-up videos?
A: Yes. For refurbished units, we can supply a basic functional test report (power-on self-test, communication handshake, sample channel verification) and short power-up video on request. Just ask before purchase.
