ABB RETA-02 Ethernet Adapter — Drive-to-Network Bridge
The RETA-02 from ABB is an optional Ethernet adapter for ABB drives. It turns the drive into a slave on an Ethernet network. The module speaks Modbus/TCP and PROFINET IO. It sends start, stop, and run enable commands. It feeds speed or torque references. Therefore, it also passes process values to the drive PID controller. Moreover, it reads status and actual values. It also resets drive faults. The RETA-02 mounts in the drive option slot. A 34-pin parallel bus connector links it to the control board. Meanwhile, the RJ-45 port handles 10/100 Mbps traffic. An 8-way DIP switch sets the intranet IP address. This module suits panel builders and integrators who need fast drive networking without a full protocol gateway.
What the RETA-02 Controls
- Control commands include Start, Stop, and Run enable.
- Motor speed or torque reference goes through the module.
- Process actual value or PID reference passes to the drive.
- Drive status and actual values read back to the master.
- Parameter value changes are supported.
- Drive fault reset is available remotely.
Technical Data
- Brand: ABB
- Model: RETA-02
- Mounting is the drive option slot on the control board.
- Degree of protection is IP20.
- Ambient conditions follow the drive Hardware Manual.
- Settings come through drive parameters and an 8-way DIP switch for intranet IP address.
- Connectors include a 34-pin parallel bus connector and RJ-45.
- Current consumption is 380 mA average at 5 V, supplied by the control board.
- Estimated minimum lifetime is 100 000 h.
- All materials are UL/CSA-approved.
- EMC compliance covers EN 50081-2 and EN 50082-2.
Ethernet Link Data
- Compatible devices follow IEEE 802.3 and 802.3u.
- Medium is 10base-TX or 100base-TX.
- Termination is internal.
- Wiring uses CAT 5 UTP, CAT 5 FTP, or CAT 5 STP (recommended).
- Connector type is RJ-45.
- Maximum segment length is 100 m.
- Topology supports bus or star.
- Duplex modes cover half and full.
- Transfer rate reaches 10/100 Mbps.
- Carrier protocol is TCP/IP.
- Application protocols are Modbus/TCP and PROFINET IO.
Protocol Notes for Integrators
- Modbus/TCP works with any master that supports it.
- PROFINET IO needs masters that support sub-slots.
- Functionality is limited if the master ignores multiple sub-slots per slot.
- Set the IP address with the DIP switch before first connect.
- Confirm drive firmware supports the module type.
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