ABB Bailey INFBA01 Interface Module

Physical Dimensions and Mounting Details

The ABB Bailey INFBA01 connects Bailey controllers to Fieldbus networks seamlessly. This module measures 130mm in height, 65mm in width, and 95mm in depth. You can mount this unit on a standard 35mm DIN rail inside any control cabinet. The module weighs 0.44 kilograms , making it easy to install in dense panel layouts.

Internal Architecture and Component Density

The ABB Bailey INFBA01 contains 158 individual components on its six-layer PCB. A dedicated Fieldbus controller manages all protocol timing and message framing. Two isolation transformers provide 2500V AC separation between network and logic. Additionally, eight TVS diodes protect the Fieldbus port from voltage surges.

Energy Storage and Message Buffering

This interface module stores 19.6 joules across six electrolytic capacitors. This energy reserve powers message buffers for up to 40 milliseconds during power dips. The storage also maintains network configuration data while the system recovers. Consequently, the module prevents Fieldbus communication loss during brief interruptions.

Parameter	Value	Unit
Dimensions (H x W x D)	130 x 65 x 95	mm
Weight	0.44	kg
PCB layer count	6	layers
Total components	158	pieces
Fieldbus controller	Dedicated ASIC	–
Isolation transformers	2	units
TVS protection diodes	8	units
Electrolytic capacitors	6	units
Total energy storage	19.6	J
Message buffer hold time	40	ms
Fieldbus protocol	PROFIBUS DP	–
Baud rates supported	9.6 to 12000	kbps
Maximum network length	1200	meters
Station address range	0 to 125	–
Backplane interface	20-pin IDC	–
Fieldbus connector	9-pin D-sub	–
Operating voltage	5	V DC
Current draw	220	mA
Power dissipation	1.1	W
LED indicators	6	units

Interface and Connectivity Features

The ABB Bailey INFBA01 provides one 9-pin D-sub female connector for Fieldbus cabling. A single 20-pin IDC header links the module to the Bailey backplane. You will also find two 3-pin terminal blocks for external termination power. The D-sub connector follows standard PROFIBUS pinout for direct cable compatibility.

Fieldbus Protocol and Data Exchange

This module operates as a PROFIBUS DP slave on the Fieldbus network. The interface exchanges up to 244 bytes of I/O data per cycle with the master. You can configure diagnostic messages of up to 64 bytes for detailed status reporting. Furthermore, the module supports sync and freeze modes for synchronized I/O updates.

Configuration and Addressing Features

The ABB Bailey INFBA01 uses DIP switches for manual station address setting. You can select addresses from 0 to 125 using eight binary switches. The module also includes baud rate auto-detection for plug-and-play network integration. You can download the GSD file for seamless configuration with any PROFIBUS master.

Diagnostic and Status Indication

Six LED indicators provide immediate feedback for network and module status. Green PWR confirms the presence of valid backplane power. Amber BF (Bus Fault) lights up when the module loses communication with the master. Red SF (System Fault) alerts you to internal hardware or configuration errors. Two additional LEDs show data exchange active and parameterization done conditions.

Network Protection and Signal Quality

The ABB Bailey INFBA01 includes switchable termination resistors for end-of-cable applications. You can enable 390 ohm pull-up and pull-down resistors for proper bus biasing. The module also provides short-circuit protection on the Fieldbus transceiver outputs. Proper termination eliminates signal reflections on long network segments.

Environmental Specifications and Compliance

You can operate this interface module from 0°C to 55°C ambient temperature without derating. Storage temperature ranges from -40°C to 85°C for long-term preservation. Non-condensing humidity tolerance spans 5% to 95% for industrial environments. This module meets EN 50170 standards for PROFIBUS DP equipment.