Description
ABB DSTD150 57160001-UH | S100 I/O Connection Unit | Digital Input Termination
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Type Designation | DSTD 150A |
| Product ID | 57160001-UH |
| Product Type | Module Termination Unit |
| Function | Digital Input Connection Unit |
| I/O Architecture | ABB S100 I/O |
| Number of Channels | 32 digital inputs |
| Maximum Process Voltage | 60 V |
| Compatible Digital Input Boards | DSDI 110A, DSDI 115 |
| Board Connection | DSTK 150 or DSTK 221, depending on application |
| Exchange Number | EXC57160001-UH |
| Length | 153 mm |
| Height | 36 mm |
| Width | 209.7 mm |
| Net Weight | 0.36 kg |
ABB documentation specifically shows the DSTD 150A connected to the DSDI 110A or DSDI 115 digital input board through the appropriate cable, providing the field connection for all 32 digital input channels.
Product Introduction
The ABB DSTD150 57160001-UH is a connection unit used in ABB’s S100 I/O architecture. It provides the field-side termination for a 32-channel digital input arrangement and interfaces with compatible DSDI digital input boards through the designated S100 I/O cabling.
This is a termination/connection unit rather than the actual digital input processing board. That distinction matters during replacement: the DSTD150 does not perform the same function as a DSDI 110A or DSDI 115 input board.
DSTD150
Application Scenarios & Field Pitfalls — Engineer’s Perspective
Engineering Pain Point
A failed DSTD150 can create what appears to be a digital input module or field-wiring problem. Since it sits between the field wiring and the S100 input board, loose terminals, incorrect cable selection, or a damaged connection unit can interrupt multiple channels simultaneously.
Typical Applications
- ABB Advant Controller 450 installations
- ABB S100 I/O systems
- Advant OCS process-control installations
- MasterPiece 200 / 200/1 systems using I/O
- 32-channel digital input field termination
ABB’s product classification also places DSTD 150A within the I/O architecture used with Advant Controller 450 and other Advant/ABB control-system configurations.
Technical Pitfalls to Avoid
- Do not substitute the DSTD150 for the digital input board.
The DSTD150 is the connection unit. The actual digital input processing is performed by boards such as the DSDI 110A or DSDI 115. - Verify the exact DSTD variant.
The family contains several DSTD connection units with different maximum voltage ratings and channel arrangements. Documentation lists DSTD 150A alongside variants such as DSTD 195, DSTD 196, DSTD 197, and DSTD 198. Do not select a replacement solely because the front designation begins with DSTD 150. - Check the interconnection cable.
The DSTD150A is connected to the digital input board using an I/O cable. A mechanically similar connection unit with the wrong cable or pin arrangement can result in incorrect channel mapping. - Verify the field voltage before reconnection.
The 57160001-UH version is documented with a maximum process voltage of 60 V. Field circuits should be checked against the actual system drawing before energizing the replacement. - Inspect the terminal block, not only the electronics.
Because this is a field connection unit, terminal condition, screw torque, corrosion, cable strain, and channel identification can be more important than cosmetic condition of the enclosure.
Related Products
- ABB DSDI 110A — 32-channel digital input board used with the DSTD 150A connection unit.
- ABB DSDI 115 — Alternative 32-channel digital input board supported by DSTD 150A.
- ABB DSDP 150 — Pulse counter board; the DSTD 150A can also provide its field connection in the documented architecture.
- ABB DSTK 150 — Interconnection cable used between DSTD 150A and applicable digital input boards.
- ABB DSTK 221 — Alternative I/O connection cable identified for the DSTD 150A arrangement.
- ABB DSTD 110A — Different digital connection unit; not a drop-in assumption for DSTD 150A.
- ABB DSTA 131 — analog input connection unit serving a different I/O function.
- ABB DSTA 180 — analog output connection unit.
- ABB DSRF 150 — I/O rack hardware associated with the broader legacy ABB I/O architecture.
Procurement Check
Before approving an , verify:
- Exact designation: DSTD 150A
- Product ID: 57160001-UH
- Exchange number: EXC57160001-UH
- 32-channel digital input application
- Maximum field voltage
- Installed DSDI 110A or DSDI 115 board
- Correct DSTK interconnection cable
- Terminal arrangement and field wiring
- Existing I/O rack and controller architecture
- Mounting hardware, including 3BSE021202R1 where required
- Terminal condition and insulation condition
Recommended procurement description:
ABB 57160001-UH / DSTD 150A Connection Unit, I/O Digital Input Termination Unit, 32 Channels, Maximum 60 V, for DSDI 110A / DSDI 115.
The key point for a plant replacement is that is a field connection/termination unit, not a standalone digital input module. Match the DSTD variant, DSDI board, cable, and I/O wiring scheme as one system.
