Purchase now: Wago 750-340 PROFINET IO Coupler
Purchase now: Atlantech Drives provides you the Wago 750-340, a reliable and widely deployed **Fieldbus Coupler** for **PROFINET IO** networks. This device connects the modular WAGO-I/O-SYSTEM 750 to a higher-level control system (such as a Siemens Simatic S7 or other PN controllers). It identifies the connected I/O modules automatically and creates a process image for the PLC. Featuring an integrated **2-port Ethernet Switch**, it allows for easy line topology wiring, eliminating the need for external switches in the field cabinet.
Technical Specifications and Network Integration
The 750-340 supports standard PROFINET IO real-time communication (RT) at **100 Mbit/s**. It handles both digital and analog signal transmission with high reliability. The coupler provides galvanic isolation between the fieldbus system and the internal electronics. It is powered by 24V DC and passes this power to the connected I/O modules via the internal data bus contacts.
- Part Number: 750-340.
- Protocol: PROFINET IO.
- Baud Rate: 10/100 Mbit/s (Auto-negotiation).
- Connection: 2 x RJ-45 (Switch).
- Topology: Line, Star, Tree.
- Max Process Image: Check firmware (typ. 1024 bytes).
- Supply Voltage: 24 V DC.
- Addressing: DCP (Discovery and Configuration Protocol).
- Protection: IP20.
Expert Installation Advice: GSDML Files
Don’t struggle with hardware recognition. Expert Tip: To integrate the 750-340 into your PLC engineering software (like TIA Portal), you must install the correct GSDML file (Device Description File) from the Wago website. Ensure the GSDML version matches the firmware version of the coupler. If the LED «BF» (Bus Fault) is flashing red, it usually means a name mismatch: the «Device Name» assigned in the PLC project must match exactly the name stored in the coupler (assignable via Wago Ethernet Settings tool or the PLC itself).
Frequently Asked Questions (FAQs)
Q: Does it support Media Redundancy (MRP)?
A: Standard versions typically do not support being an MRP Manager, but usually support being an MRP Client (Slave) to pass data through in a ring. Check the manual for the specific hardware revision capabilities.
Q: How many modules can I connect?
A: You can connect up to 64 modules mechanically, but the limiting factor is usually the current consumption (internal 5V bus). Use a 750-613 Supply Module if you exceed the limit.
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