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B&R 3IF661.9 PROFIBUS DP Interface Module
The B&R 3IF661.9 is a SYSTEM 2005 interface module providing one electrically isolated, network-capable RS485 interface for PROFIBUS DP. Designed as a plug-in insert for B&R SYSTEM 2005 CPUs and interface processors, it lets existing SYSTEM 2005 control systems communicate with PROFIBUS DP fieldbus networks. Galvanic isolation, status LEDs and BCD address dials make it straightforward to install, address and monitor in industrial environments.
- 1 × RS485 interface for PROFIBUS DP
- Electrically isolated (galvanically isolated) and network-capable
- Plugs into SYSTEM 2005 CPU and interface module slots
- BCD dials for station address setting
- RXD / TXD status LEDs
- CE, UKCA and UL (cULus E115267) certified
Key Features & Functions
PROFIBUS DP Connectivity
Adds a PROFIBUS DP connection to SYSTEM 2005 racks, enabling communication with PROFIBUS remote I/O, drives and field devices.
Electrical Isolation
The RS485 interface is electrically isolated, protecting the controller from ground loops and noise on long fieldbus runs.
Long-Distance Communication
Supports cable lengths up to 1000 m, with adaptive baud rates reaching up to 12 Mbit/s over short distances.
Compact ASIC-Based Design
An SPC3 PROFIBUS ASIC with 1.5 KB RAM handles data transfer with low power consumption of approximately 2 W.
Simple Addressing & Diagnostics
BCD dials allow quick station address configuration, while RXD/TXD LEDs give immediate visual status feedback.
Modular Insert Format
Fits directly into the interface module slot of CP260, IF260 or IF060 modules for flexible system expansion.
Technical Specifications
| Model / Order Number | 3IF661.9 |
|---|---|
| Brand | B&R (Bernecker & Rainer) |
| Platform / Series | SYSTEM 2005 |
| Module Type | Interface module (plug-in insert) |
| Interface | 1 × RS485, electrically isolated, network-capable |
| Transfer Protocol | PROFIBUS DP |
| Bus Controller | ASIC SPC3 |
| Buffer RAM | 1.5 KB |
| Max. Baud Rate | 12 Mbit/s |
| Max. Cable Length | Up to 1000 m |
| Power Consumption | Approx. 2 W |
| Status Indicators | RXD, TXD LEDs |
| Address Setting | BCD dials |
| Compatible Modules | CP260, IF260, IF060 (interface module slot) |
| Optional Accessory | 0G1000.00-090 RS485 PROFIBUS bus connector |
| Certifications | CE, UKCA, UL (cULus E115267 Industrial Control Equipment) |
Source note: Basic product data is taken from B&R Industrial Automation's official product page for 3IF661.9. Detailed electrical and timing figures are compiled from published distribution data — please confirm against the official B&R datasheet (revision 1.0) before ordering or commissioning.
Typical Application Scenarios
- PROFIBUS DP Fieldbus Networks: integrating SYSTEM 2005 controllers with PROFIBUS remote I/O and field devices.
- Remote I/O Expansion: connecting distributed I/O stations over long cable runs up to 1000 m.
- Drive & Motion Systems: fieldbus communication with PROFIBUS-enabled drives and actuators.
- Legacy SYSTEM 2005 Retrofits: restoring or extending the fieldbus capability of existing CP260, IF260 and IF060 installations.
- Process & Manufacturing Automation: multi-device communication across production lines and process plants.
Frequently Asked Questions
What is the B&R 3IF661.9 used for?
It is a SYSTEM 2005 interface module that adds one electrically isolated RS485 interface for PROFIBUS DP communication, allowing SYSTEM 2005 controllers to connect to PROFIBUS fieldbus networks.
Which modules is it compatible with?
It plugs into the interface module slot of CP260, IF260 and IF060 modules within the B&R SYSTEM 2005 platform.
What baud rates and distances does it support?
It supports baud rates from 9.6 kbit/s up to 12 Mbit/s, with communication distances up to 1000 m at lower speeds.
How is the PROFIBUS station address set?
The station address is configured using BCD dials on the module. RXD and TXD LEDs provide status indication for setup and monitoring.
Is a bus connector included?
No. The 0G1000.00-090 RS485 PROFIBUS bus connector is an optional accessory and must be ordered separately, along with proper bus termination.
Where can I find the official datasheet?
The official B&R datasheet for 3IF661.9 (revision 1.0) is available on the B&R Industrial Automation product page and through authorized distributors.
