Application Scenarios

In a large chemical processing plant, field engineers struggled with intermittent communication errors on a PROFIBUS DP network serving multiple remote I/O stations. The errors, caused by improper bus termination at the end of the trunk line, led to data packet loss and occasional process interruptions. After installing the ABB PCO011 with its switchable termination resistor enabled at both network endpoints, the impedance matching eliminated the signal reflections. The ABB PCO011 restored stable, error-free communication between the AC 800M controller and field devices, reducing fault-finding time by over 70% and allowing operators to focus on process optimization rather than network diagnostics.

 

Parameters

Main Parameters	Value/Description
Product Model	PCO011 (NDE220-NO)
Order Number	3BDZ000371R1
Manufacturer	ABB
Product Category	PROFIBUS DP Field Connector
Communication Protocol	PROFIBUS DP (V0/V1 compatible)
Maximum Data Rate	12 Mbit/s
Termination Resistor	Built-in 120Ω, DIP switch selectable ON/OFF
Connector Type	9-pin D-Sub male (standard PROFIBUS pinout)
Cable Outlet Angle	35° or 90° (variant dependent)
Protection Rating	IP67 (dust-tight and water-resistant)
Operating Temperature	-40°C to +85°C
Housing Material	High-durability plastic with metal shielding
Weight	0.05–0.15 kg (variant dependent)
Compatible Systems	ABB AC 800M, AC800F, 800xA, S900 I/O

 

 

Technical Principles and Innovative Values

Innovation Point 1: Switchable Integrated Termination
The ABB PCO011 features a built-in 120Ω termination resistor that can be enabled via a DIP switch . This eliminates the need for external terminators or specialized tools when configuring network endpoints. When activated, the resistor provides proper impedance matching, suppressing signal reflections that cause data corruption in high-speed PROFIBUS networks (9.6 kbps to 12 Mbps).

Innovation Point 2: Flexible Environmental Protection
The ABB PCO011 is available in IP20 and IP67-rated variants, allowing deployment in both clean control cabinets and harsh field conditions where dust and moisture ingress are concerns . The IP67 variant ensures reliable communication in washdown environments, outdoor installations, and applications subject to high humidity.

Innovation Point 3: Space-Optimized Design
The 35° angled cable outlet of the ABB PCO011 enables compact installation in tight control panels, reducing cable strain and improving wire routing efficiency . This design feature simplifies panel layout and minimizes the risk of accidental disconnection.

Innovation Point 4: High-Speed Data Integrity
Supporting data rates up to 12 Mbit/s, the ABB PCO011 maintains signal integrity through its metal-shielded housing and precision impedance-controlled contacts . This ensures error-free communication even in electrically noisy industrial environments.