Purchase now: Wago 750-375 PROFINET Coupler
Purchase now: Atlantech Drives provides you the Wago 750-375, a high-performance **Fieldbus Coupler** designed to integrate the modular WAGO-I/O-SYSTEM 750 into a **PROFINET IO** network. This advanced coupler acts as a gateway, translating data between the real-time PROFINET protocol (used by Siemens S7 and other PLCs) and the local internal bus of the I/O modules. It features an integrated **2-port Ethernet Switch**, allowing for flexible line topology wiring without additional external hardware.
Technical Specifications and Advanced Features
The 750-375 automatically configures the local bus, creating a process image of all connected analog, digital, and specialty modules. Unlike the «Eco» version, this «Advanced» coupler supports a larger number of modules and extended diagnostic features. It supports transmission speeds of **100 Mbit/s** (Full Duplex) and assigns IP addresses via DCP protocol. The housing is compact and mounts directly onto a 35mm DIN rail.
- Part Number: 750-375.
- Protocol: PROFINET IO (RT).
- Baud Rate: 100 Mbit/s.
- Connector: 2 x RJ-45 (Switched).
- Max I/O Modules: 250 (depending on power).
- Supply Voltage: 24 V DC.
- Isolation: 500 V system/supply.
- Protection: IP20.
- Configuration: via GSDML file.
Expert Installation Advice: Topology Management
One of the best features of the 750-375 is the built-in switch. Expert Tip: You can daisy-chain this device from one coupler to the next (Line Topology), which drastically reduces cabling compared to a Star Topology. However, ensure you enable LLDP (Link Layer Discovery Protocol) in your PLC configuration. This allows the controller to detect the physical neighbor relationships, enabling «Device Replacement without Exchangeable Medium/PG» – meaning if a coupler fails, you can plug in a new empty one, and the PLC will automatically assign the correct IP and name based on its position in the line.
Frequently Asked Questions (FAQs)
Q: What is the difference between 750-375 and 750-377?
A: The 750-375 is the standard Advanced PROFINET coupler. The 750-377 typically refers to a variation with specific functionality or newer generation (v3), often related to MRP (Media Redundancy Protocol) support levels.
Q: Does it need a separate power supply module?
A: The coupler powers the internal electronics. However, for the field power (powering the sensors/actuators via the jumper contacts), you often need a separate feed module (750-602) if the current draw exceeds 10A.
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