Here is a refined technical overview of the WAGO 750-338 CANopen DSUB Fieldbus Coupler with End Module Set:
📋 Technical Specifications
| Parameter | Description |
|---|---|
| Model | WAGO 750-338 |
| Type | CANopen fieldbus coupler (DSUB) with end module set |
| Bus Interface | CANopen (ISO 11898−2) |
| Connector | 9-pin D-sub (DSUB) for CAN bus |
| Supply Voltage | 24 V DC (typical industrial standard) |
| Current Consumption | ~ 100 mA (typical, device only) |
| I/O Modules Interface | WAGO 750 series backplane bus |
| Number of I/O Slots | Up to 8 standard 750 I/O modules (depends on bus load) |
| End Module Set | Supplies termination resistor and diagnostics |
| Status LEDs | RUN, ERR, BUS status indicators |
| Operating Temperature Range | –25 °C to +60 °C |
| Storage Temperature | –40 °C to +85 °C |
| Relative Humidity | 5 % to 95 %, non-condensing |
| Shock / Vibration | Conforms to IEC/EN 60068 standard categories |
| Protection Class | IP20 (when mounted in cabinet) |
| Dimensions | Standard 750 modular block size (approx. 12.5 mm width per module) |
| Mounting | DIN-rail mounting or flush cabinet mounting via backplane |
| Diagnostics | Bus error detection, module failure flag, status readout via CANopen objects |
🧰 Features & Application Notes
The 750-338 functions as a bridge between a CANopen network and the WAGO 750 I/O modular system. Through its DSUB interface, it connects to a CANopen master or higher-level controller, enabling the exchange of process data and diagnostic information.
Key features include:
- Seamless Integration: It supports a variety of 750 I/O modules (digital input, output, analog modules), enabling mixed I/O configurations.
- Termination Handling: The accompanying end module set includes termination resistors required for proper CAN bus operation, plus biasing and fail-safe components.
- Robust Diagnostics: LEDs and status bits in the CANopen object dictionary provide transparent feedback on bus health, module states, and error conditions.
- Scalable Architecture: Up to eight I/O modules can be attached in series, providing flexibility for medium-scale distributed control tasks.
- Industrial Design: Optimized for harsh environments with wide temperature and humidity tolerances, conforming to industrial shock and vibration requirements.
Typical applications:
- Factory Automation: Distributed I/O nodes in production lines or cell controllers.
- Machine Control: Insertion into machine modules where CANopen is preferred for deterministic communication.
- Process Control: Integration in systems where modular I/O is needed at remote locations on a CANopen backbone.
For more details on modular automation solutions, you can consult FY-Module.
