FMBT-21 Modbus/TCP Adapter Module for ABB Drives | ABB

The Original New ABB FMBT-21 Modbus/TCP Adapter Module (3ABD50000049964) is a plug‑in communication module that enables ABB drives to operate on Modbus TCP networks. It offers flexible and cost‑effective Ethernet‑based integration for basic monitoring and control applications. Installed directly into the drive's option slot, the module acts as a Modbus TCP server, supporting ABB Drives and Transparent communication profiles. It also supports Modbus over UDP. Designed for compatibility with ACS380, ACS480, ACS580, ACH480, ACH580, ACQ580, and ACS880 drives, this fieldbus adapter is an ideal solution for integrating ABB drives into standard Ethernet-based automation networks.

Core Engineering Highlights:
2‑port Modbus/TCP adapter with integrated Ethernet switch | 10/100 Mbps data rates | Modbus/TCP and Modbus/UDP protocol support | Two simultaneous Modbus/TCP client connections | ABB Drives (Enhanced & Classic) and Transparent communication profiles | Powered directly from drive (≤400 mA @ +3.3V DC) | Integrated web server for configuration and diagnostics | IEEE 802.3 / IEEE 802.3u compliant

Key Features:

• Original New ABB FMBT‑21 module (3ABD50000049964)

• 2‑port Modbus/TCP adapter with integrated Ethernet switch for star or daisy‑chain topologies

• 10/100 Mbps data rates for standard Ethernet infrastructure connectivity

• Supports Modbus/TCP and Modbus/UDP protocols

• Two simultaneous Modbus/TCP client connections

• Communication profiles: ABB Drives (Enhanced and Classic), Transparent 16‑bit and 32‑bit

• Integrated web server for convenient setup and diagnostics

• Backup of all settings to the drive

• Supports automatic configuration of fieldbus settings

• Powered directly from the host drive via the option slot interface

• Supports star and daisy‑chain network topologies

Applications:

• ABB drive integration into Modbus TCP/IP networks

• Factory automation and process control systems

• Material handling and conveyor systems

• Pump, fan, and compressor control

• SCADA system connectivity for drive monitoring and control

• Energy management and utility infrastructure

• OEM machine building and panel integration

Technical Specifications:

System Compatibility:

• Compatible with ABB drives that support the FMBT‑21 Modbus/TCP communication adapter. Drive model and firmware compatibility should be verified before installation.

• Verified compatible drive families include: ACS380, ACS480, ACS580, ACH480, ACH580, ACQ580, and ACS880

• Also reported compatible with ACS355, ACSM1, and DCS880 drives

• Any Modbus TCP master controller (PLC, SCADA, HMI) supporting Modbus/TCP or Modbus/UDP

• Minimum firmware requirements: ACS880 v2.51.0.0+ / ACS580 v2.02.0.1+

Related Products:

• FPBA‑01 – PROFIBUS DP adapter module for ABB drives

• FENA‑01 – EtherNet/IP adapter module for ABB drives

• FCAN‑01 – CANopen adapter module for ABB drives

• FPNO‑21 – PROFINET IO adapter module for ABB drives

• NETA‑21 – Remote monitoring tool for ABB drives

• ACS‑CP‑C – Basic control panel for ABB drives

PLC ERA is an independent industrial automation distributor supplying genuine Original New products through established global supply channels. All products are factory sealed when applicable and undergo quality inspection prior to shipment. ABB is a trademark of ABB Group.