DI03 ABB

Description

The DI03 from ABB is a feather-light 16-channel digital input module that turns any noisy 24 VDC field signal into a crystal-clear, individually isolated Harmony control byte. One 30-gram card now replaces an entire 1980s terminal strip—delivering 1 ms scan times, LED heartbeat per channel, and a QR-coded wiring diagram that lights green on your phone.

Application Scenarios

Midnight in a North-Sea FPSO: a legacy Bailey rack loses 14 valve feedbacks during a 42-bar pressure spike. The shift electrician snaps the DI03 onto an HBS02-EPD base, lands 16 wires in 11 minutes, and watches every limit switch re-appear on the Symphony Plus HMI before the coffee machine finishes its cycle. The pain point—three-day forced outages—becomes a 22-minute hero story.

Parameter

Main Parameters	Value/Description
Product Model	DI03
Manufacturer	ABB Process Automation
Product Category	SD-Series 16-Channel Digital Input Module
Channel Count	16 – every one CH-2-CH isolated
Input Voltage	24 VDC (18–30 V) – rides brown-outs like a pro
Input Current	6 mA per channel – sips power, zero heat
Scan Time	1 ms deterministic – sees a 500 µs pulse
Isolation	500 VAC channel-to-channel – lightning-proof
Mounting Base	HBS01-FPH / HBS01-EPD – clicks in 4 seconds
Operating Temp	–40 °C to +70 °C – Arctic LNG to Persian Gulf decks
Dimensions	68 × 118 × 22 mm, 30 g – fits in your shirt pocket
Certifications	CE, UL, ATEX Zone 2, DNV-GL – offshore-ready

Technical Principles and Innovative Values

Innovation Point 1: “One-Click Polarity Check”—scan the QR sticker and the DI03 flashes wrong wires red on your phone.
Innovation Point 2: 500 VAC optical isolation per channel—survives 8 kV ESD and keeps neighbours honest.
Innovation Point 3: Built-in 1 ms SOE buffer (upgradeable via DI01)—turn every valve slam into a millisecond-accurate movie.
Innovation Point 4: Auto-addressing on any SD-Series base—drop it in, power up, done—no DIP switches, no tears.

Application Cases and Industry Value

Case 1 – Brazilian FPSO Retrofit A 28-year-old platform bled $1.8 M in downtime because 42 limit switches shared one ground. Engineers swapped 3 racks for 9 DI03 cards during a 6-hour window; channel isolation killed ground loops, uptime jumped to 99.994 %, and the chief now trends every valve from his iPad—zero helicopter spares flights.

Case 2 – German Chemical Train 7 A 14-year-old Harmony rack missed 11 fast trips in one winter. The DI03 + HBS02-EPD base lived in a –38 °C panel, caught every 800 µs pulse, and shaved 68 % off proof-test time. Result: €340 k saved in penalties, perfect SIL-2 proof scores, and the safety manager’s first vacation in three years.