ABB S100 I/O 57160001-A/13 DSDI-110 Digital Input Board

Product Overview

The DSDI 110 (Product ID: 57160001-A/13) is a high-density Digital Input Board belonging to the ABB S100 I/O system. It is designed for use with Advant OCS with Master Software, 800xA, and MasterPiece 200/1 controllers. The board serves as a physical interface between external field sensors and the control system, processing discrete signals from switches, pushbuttons, and relay contacts. It features 32 input channels organized into groups, utilizing optical isolation to protect the internal controller logic from field-side electrical interference and transients.

Technical Specifications

Ordering Information

Engineering & Installation Guide

Wiring and Shielding

All digital input signals should be wired using twisted-pair cables. For high-noise environments, shielded cables are recommended. The shield should be grounded at a single point, typically at the subrack grounding bar, to prevent ground loops. Ensure that the 24 V DC field power supply is stable and meets the ripple specifications required by the S100 I/O bus.

Module Replacement Precautions

When replacing an existing 57160001-A/13 board with the new replacement model 3BSE018295R1, verify the hardware revision and jumper settings (if applicable) on the backplane or the board itself. The S100 I/O system supports hot-replacement in many configurations, but it is best practice to power down the specific I/O branch if the process safety allows, to prevent accidental short circuits during insertion.

Lifecycle and Obsolescence

The DSDI 110 is a legacy component within the Advant OCS and MasterPiece ecosystems. While still available as a spare part, users should consider the lifecycle status. The 3BSE018295R1 is the current functional replacement. It is highly recommended to maintain a critical spare stock of at least 10% of the installed base for plants running 24/7 operations, as lead times for legacy S100 parts can fluctuate.

Common Installation Mistakes

• Incorrect Polarities: Reversing the 24 V DC input common can lead to non-responsive channels or damage to the optocouplers.

• Backplane Seating: Ensure the board is fully seated in the rack and the locking screws are tightened. Poor contact with the S100 bus connector can cause intermittent "Module Missing" errors in the controller diagnostics.

FAQs

• Q: Can I use the DSDI 110 in an 800xA system?

• A: Yes, the DSDI 110 is compatible with 800xA systems that utilize S100 I/O racks connected via CI810 or equivalent bus extenders.

• Q: What is the difference between 57160001-A/13 and 3BSE018295R1?

• A: 57160001-A/13 is the original manufacturing part number. 3BSE018295R1 is the updated ABB global order number for the equivalent replacement unit. They are functionally identical.

• Q: How do I identify a faulty channel?

• A: Check the LED status on the front panel of the DSDI 110. If the input signal is present at the terminal block (measured with a multimeter) but the corresponding LED and controller variable do not update, the internal optocoupler for that channel may be failed.

• Q: Is external fuse protection required?

• A: While the board has internal protection, it is standard engineering practice to fuse the 24 V DC field power distribution in groups to prevent a single field short from taking down the entire I/O board.