Purchase now: Wago 750-337 CANopen Coupler
Purchase now: Atlantech Drives provides you the Wago 750-337, a specialized **Fieldbus Coupler** for the **CANopen** protocol. Unlike standard D-Sub couplers, the 750-337 features the **MCS (Multi Connection System)** interface, allowing for a pluggable, vibration-resistant wiring connection directly to the cage clamps. This unit acts as a slave in the CANopen network (e.g., controlled by a motion controller or PLC) and maps the physical data from the Wago 750 I/O modules into **PDOs (Process Data Objects)** and **SDOs (Service Data Objects)**.
Technical Specifications and Configuration
The 750-337 automatically detects the connected input/output modules and generates the corresponding I/O map. It supports transmission speeds from **10 kbaud to 1 Mbaud**. The Node ID (Address) and the Baud Rate are configured manually via **DIP Switches** located under the transparent flap, ensuring the settings are visible and tamper-resistant without software tools.
- Part Number: 750-337.
- Protocol: CANopen (DS-301).
- Connection: MCS (Pluggable Terminal).
- Baud Rate: 10 kbaud… 1 Mbaud (DIP switch).
- Max PDOs: 5 Tx / 5 Rx (Typical).
- Emergency Message: Supported.
- Supply Voltage: 24 V DC.
- Protection: IP20.
- Profile: DS-401 (I/O Modules).
Expert Tips: Termination Resistors
The #1 cause of CAN errors is termination. Expert Tip: Since the 750-337 uses the MCS connector (terminals) and not a D-Sub plug with a built-in switch, you must manually install a **120 Ohm termination resistor** between CAN_H and CAN_L if this coupler is the last device in the physical line. Without this resistor, signal reflections will cause intermittent «Bus Off» errors, especially at higher speeds like 500k or 1M.
Frequently Asked Questions (FAQs)
Q: How do I map the I/O?
A: The coupler maps modules automatically based on their position. Analog modules are mapped first, then digital. You can modify this mapping using the EDS file in your master configuration software.
Q: What is the MCS connector?
A: MCS stands for «Multi Connection System». It is Wago’s proprietary pluggable terminal block system, allowing you to unplug the bus wiring without unscrewing each wire individually.
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