Product details
ABB RETA-02 Ethernet Adapter – Connect Your Drive to Modbus/TCP or PROFINET IO
Model: RETA-02 | Brand: ABB | Series: RETA Ethernet Adapter | Type: Optional Drive Module
Give your ABB drive a network voice. The RETA-02 plugs into the drive option slot. It makes the drive a slave on an Ethernet network. You get fast control, clear data, and simple parameter changes.
What You Can Do
- Send control commands: Start, Stop, Run enable.
- Set motor speed or torque reference.
- Feed process values to the drive PID controller.
- Read status and actual values.
- Change drive parameter values.
- Reset a drive fault.
Compatibility Tree
- Master stations
- Modbus/TCP – full support.
- PROFINET IO – works with masters that support PROFINET IO and sub-slots.
- Note: Limited function if master lacks multiple sub-slots per slot.
- Ethernet devices
- IEEE 802.3 and 802.3u
- 10base-TX or 100base-TX
- CAT 5 UTP, CAT 5 FTP, or CAT 5 STP (recommended)
Technical Data
- Brand: ABB
- Model: RETA-02
- Series: RETA
- Type: Ethernet Adapter Module
- Mounting: Drive control board option slot
- Protection: IP20
- Ambient conditions: Same as drive (see drive Hardware Manual)
- Settings: Drive parameters; 8-way DIP switch for intranet IP selection
- Connectors: 34-pin parallel bus; RJ-45
- Current: 380 mA average at 5 V (from drive control board)
- Lifetime: Min. 100,000 hours
- Materials: UL/CSA approved
- EMC: EN 50081-2 and EN 50082-2
Ethernet Link Details
- Medium: 10base-TX or 100base-TX
- Termination: Internal
- Connector: RJ-45
- Max segment length: 100 m
- Topology: Bus, star
- Duplex: Half and full
- Speed: 10/100 Mbps
- Carrier protocol: TCP/IP
- Application protocols: Modbus/TCP, PROFINET IO
What’s in the Box
- RETA-02 Ethernet Adapter module
- Two screws (M3x10)
Expert Review
The RETA-02 is a simple, proven bridge from ABB drives to Ethernet. Setup is quick with the DIP switch and drive parameters. It fits many drive models. The module runs cool and stable. Network engineers like the clear Modbus/TCP mapping.
Manager’s Insight
Stock this module for retrofits and OEM builds. It cuts wiring time. Customers often ask for it when moving from hard-wired control to Ethernet. Fast shipping keeps projects on schedule.
Best Devices and Applications
- ABB drives with an option slot
- Factory automation lines
- Pump and fan control
- Conveyor systems
- Remote drive monitoring
- Process PID loops
Professional FAQ
Q: Can I use RETA-02 with a master that supports only one sub-slot?
The module still works, but some PROFINET IO functions are limited. Check your master manual first.
Q: Do I need a special cable?
Use CAT 5 UTP, FTP, or STP cable with an RJ-45 plug. Keep segment length under 100 m.
Q: How do I set the IP address?
Use the 8-way DIP switch for the intranet address, or set it through drive parameters. No software tool is needed.
Q: What is the warranty?
We offer a 12-month warranty. Ships in 12–24 hours by FedEx, UPS, or DHL.
Q: Which drive models fit?
The module fits ABB drives with a compatible option slot. Check your drive Hardware Manual or ask us before ordering.
Q: How do I choose the right adapter for my line?
Match the master protocol first: Modbus/TCP or PROFINET IO. Then confirm your drive has an option slot. RETA-02 covers both protocols in one module.
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