VIPA 972-0DP01 – PROFIBUS DP right‑angle connector with switchable termination for reliable fieldbus wiring

The VIPA 972-0DP01 is a compact PROFIBUS DP connector designed for dependable RS‑485 bus connections on PLCs, drives, remote I/O, and HMIs. From my experience, this right‑angle style is a go‑to in dense panels because it clears cable bend radii while keeping strain relief neat. You might notice that the termination switch is easy to access, which typically cuts down troubleshooting time at the end stations of a segment.

Although it’s often used alongside ABB controllers and drives, the 972-0DP01 is vendor‑agnostic: it fits any device with a standard 9‑pin D‑Sub PROFIBUS port and supports the full DP speed range up to 12 Mbit/s.

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Key Features

• Right‑angle housing – Helps with tight cabinets and keeps cable routing clean next to PLC racks or drives.
• Switchable termination – Built‑in 220/390/390 Ω termination for end‑of‑line stations; reduces the need for external terminators.
• High‑speed PROFIBUS DP – Supports common baud rates from 9.6 kbit/s up to 12 Mbit/s for legacy and modern networks.
• Solid shielding and strain relief – Full shield contact and clamp to maintain EMC performance and minimize intermittent faults.
• Service-friendly wiring – Clearly marked A/B lines and shield point; quicker to verify and rework during maintenance windows.
• Wide device compatibility – Works with ABB, Siemens, VIPA/Yaskawa, and other PROFIBUS-compliant equipment using a 9‑pin D‑Sub port.

Technical Specifications

Application Fields

Used anywhere a PROFIBUS DP segment needs a dependable device connection:

• PLC racks and distributed I/O stations (e.g., VIPA/Siemens/ABB controllers)
• Drives and motion systems on PROFIBUS DP
• Process instrumentation gateways and HMI panels
• Factory retrofit projects where connectors and shielding quality often solve “random bus errors”

Advantages & Value

• Reliability – Consistent EMC contact and proper termination typically reduce CRC errors and retries on busy networks.
• Compatibility – Standard D‑Sub pinout ensures drop‑in use with multi‑vendor PROFIBUS devices, including ABB drives and PLC interfaces.
• Time savings – Quick access to the termination switch speeds commissioning and end‑of‑line checks.
• Cost control – A simple, durable connector that prevents costly downtime due to loose shields or poor bends.

A maintenance tech told us they chased intermittent bus faults for days until they swapped old plugs for 972‑0DP01 units. The shielding clamp alone, he said, “seems to be the difference between red and green LEDs” on their line.

Installation & Maintenance

• Cabinet environment – Keep inside a dry, ventilated panel; avoid tight bends immediately at the exit to maintain impedance.
• Wiring – Use PROFIBUS‑certified shielded twisted pair; connect A/B correctly and clamp the braided shield 360° to the plug.
• Termination – Set termination ON only at both physical ends of the segment; OFF for intermediate nodes.
• Segment practices – In most cases limit to 32 devices per segment (without repeater) and observe length vs. baud rate rules.
• EMC – Separate bus cabling from power by at least a few centimeters; cross at 90° when needed.
• Routine checks – Verify clamp tightness and shield continuity during planned outages; re-seat connectors after panel work.
• Safety – De‑energize equipment where required and follow lockout/tagout; avoid handling the bus under live fault conditions.

Quality & Certifications

• Conformity – CE compliant; manufactured under ISO 9001 quality systems
• RoHS – RoHS compliant in most cases for connector materials
• Warranty – 365‑day warranty coverage

One thing I appreciate is how forgiving this connector is during service—fast to open, fast to verify A/B lines, and the right‑angle exit usually means less stress on the cable jacket. If you’re mixing vendors on the same PROFIBUS ring, this model keeps things straightforward.