ABB 3BDH000031R1  AC500 series PROFINET IO slave communication expansion module
June 04, 2026

ABB 3BDH000031R1 AC500 series PROFINET IO slave communication expansion module

This product is AC500 series PROFINET IO slave communication expansion module belonging to ABB AC500 PLC platform, manufactured in accordance with IEC industrial standards and ABB global production specifications. It is a pluggable optional component mounted on CPU dedicated expansion slot, which expands standard PROFINET IO industrial Ethernet interface for the controller to realize high-speed cyclic data exchange with PROFINET master PLC, remote distributed IO stations and intelligent field automation devices.

Description

1.Product Brief Introduction

This product is AC500 series PROFINET IO slave communication expansion module belonging to ABB AC500 PLC platform, manufactured in accordance with IEC industrial standards and ABB global production specifications. It is a pluggable optional component mounted on CPU dedicated expansion slot, which expands standard PROFINET IO industrial Ethernet interface for the controller to realize high-speed cyclic data exchange with PROFINET master PLC, remote distributed IO stations and intelligent field automation devices.

2.Model Definition Explanation

3BDH is fixed internal material coding prefix for ABB AC500 series PLC expansion accessory products.
000031 is exclusive part serial number of this PROFINET IO communication module inside ABB internal product catalog.
R1 stands for the first hardware revised version with optimized internal circuit layout compared with original prototype design.

3.Technical Specifications

The module obtains operating power from CPU internal backplane bus without independent external power supply. The Ethernet interface complies with IEEE802.3 standard with 10/100Mbps auto-adaptive transmission rate and conforms to international PROFINET IO specification. Working ambient temperature ranges from -25℃ to +60℃, storage temperature covers -40℃ to +85℃, protection grade is IP20 for cabinet inner installation. The whole module passes IEC61000 EMC anti-interference and industrial anti-vibration certification.

4.Interface and Communication Configuration

Front panel is equipped with standard RJ45 Ethernet port for industrial network cable connection with switch and PROFINET master equipment. Rear gold finger plug structure inserts into CPU reserved expansion slot to finish internal data transmission via CPU built-in bus circuit. The module runs as PROFINET IO slave device, no built-in RS485 or other fieldbus terminal on module housing.

5.Core Functions

It expands dedicated PROFINET IO high-speed Ethernet channel for AC500 main controller. The module cyclically uploads digital and analog signal data collected from local IO modules to upper PROFINET IO master station, and receives downlink control instructions from master to drive field executing components. It enables the local PLC to access standard PROFINET industrial Ethernet network and supports real-time industrial communication for distributed automation system.

6.Application Scenarios

It is widely equipped inside automation control cabinets of automobile assembly production lines, packaging automation equipment, metallurgical auxiliary control, material conveying system and large-scale process industry projects, used for networking with all kinds of PROFINET compliant servo drives and remote field IO modules.

7.Operation and Maintenance Instructions

Cut off total power supply of matched CPU before installation, insert the module vertically into CPU expansion slot until mechanical locking is fully completed. Connect standard industrial Ethernet cable into RJ45 port and configure device name and communication parameters in programming software as site network requirements. Perform routine maintenance every six months, remove dust on port and module shell with dry soft brush and forbid liquid cleaning solvent. Replace the entire module when persistent network communication fault exists after eliminating external wiring and master station faults, unauthorized disassembly and internal circuit modification are prohibited.


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