Product Overview
When your industrial automation system demands reliable and efficient communication between controllers and field devices, the Schneider TWDNCO1M CANopen bus master module delivers a robust solution. As part of the Twido product range, this module acts as the central communication hub, managing data exchange with up to 16 slave devices over a CANopen network. Designed for maintenance engineers who value ease of service and system uptime, the TWDNCO1M simplifies network integration while ensuring consistent performance in demanding environments.
Technical Specifications
The TWDNCO1M operates with a rated supply voltage of 24 V DC, drawing 50.5 mA at 24 V DC and 50 mA at 5 V DC. Power dissipation is just 1.2 W at 24 V DC, keeping thermal load low in control cabinets. Communication speeds are configurable: 125 kbit/s for distances up to 1640.42 ft (500 m), 250 kbit/s up to 820.21 ft (250 m), and 500 kbit/s up to 328.08 ft (100 m). The module supports 16 RPDO and 16 TPDO channels, providing ample data exchange capacity. A 9-way SUB-D connector ensures a secure physical connection, and the integrated status LED (PWR) gives immediate visual feedback on power status.
Industry Applications
In manufacturing lines where multiple sensors, actuators, and drives need coordinated control, the TWDNCO1M simplifies wiring and reduces downtime. For example, in a packaging machine, this module can manage communication between a Twido PLC and several servo drives, ensuring precise timing and reducing cable clutter. Its support for multiple baud rates allows maintenance teams to optimize network speed based on cable length, enhancing reliability in retrofit projects where existing cabling may limit distance.
Installation & Setup Guidance
Mount the TWDNCO1M in a dry, ventilated enclosure with an IP20 rating or higher. Connect the CANopen bus using a male SUB-D 9 connector with two twisted shielded pairs. Ensure the external 24 V DC supply is stable and within rated limits. The module is compatible with Twido base controllers such as TWDLMDA20DRT and TWDLCAA40DRF. Only one TWDNCO1M can be installed per base controller, so plan your network topology accordingly. Verify that all slave devices are correctly terminated and addressed before powering up.
Maintenance & Reliability
From a maintenance engineer's perspective, the TWDNCO1M offers straightforward diagnostics. The single PWR LED quickly confirms power status, reducing troubleshooting time. With an operating temperature range of 32…131 °F (0…55 °C) and storage range of -13…158 °F (-25…70 °C), this module suits typical industrial environments. Its IP20 protection means it should be installed in a clean, dry cabinet. Periodic inspection of the SUB-D connector for corrosion or loose connections helps maintain reliable communication. The low power dissipation of 1.2 W minimizes heat buildup, contributing to long service life.
Compatibility & Integration
The TWDNCO1M is designed exclusively for the Twido PLC family. It communicates via the CANopen protocol compliant with M10 DR 303-2 and M10 DS 301 V4.02. Compatible controllers include TWDLMDA20DRT, TWDLCAE40DRF, TWDLMDA20DTK, TWDLCDA40DRF, TWDLCAA40DRF, TWDLMDA40DUK, TWDLCAA24DRF, TWDLMDA40DTK, TWDLCDE40DRF, TWDLCDA24DRF, and TWDLMDA20DUK. Integration requires an external 24 V DC supply and proper bus termination. The module supports up to 16 slaves, making it suitable for medium-scale distributed systems.
Selection Guide & Purchasing Advice
Before ordering the TWDNCO1M, verify that your Twido base controller model is among the compatible list. Ensure your system requires CANopen master functionality and that you have the necessary 24 V DC supply. The module weighs only 5.47 oz (155.0 g) and ships in a single package. For current availability and lifecycle status, please contact SpareTechPLC. Our team can confirm stock, provide datasheets, and recommend alternatives if needed.
Troubleshooting & Common Issues
If the PWR LED does not illuminate, check the 24 V DC supply voltage and polarity. If communication fails, verify that all slave devices are properly addressed and terminated. Incorrect baud rate settings can cause network errors—ensure all nodes use the same speed. The SUB-D connector should be securely fastened; loose connections are a common source of intermittent faults. For persistent issues, review the CANopen network topology and cable length limits corresponding to your baud rate.
Frequently Asked Questions
Q1: Can the TWDNCO1M be used with non-Twido PLCs?
No, the TWDNCO1M is specifically designed for the Twido PLC family and is not compatible with other controller brands.
Q2: What is the maximum number of slaves supported?
The module supports up to 16 slave devices on the CANopen network.
Q3: Does the TWDNCO1M require an external power supply?
Yes, it requires an external 24 V DC supply. The module draws 50.5 mA at 24 V DC.
Q4: What baud rates are available, and what are the corresponding cable lengths?
Available baud rates are 125 kbit/s (up to 500 m), 250 kbit/s (up to 250 m), and 500 kbit/s (up to 100 m).
Q5: How many TWDNCO1M modules can be installed per base controller?
Only one TWDNCO1M module can be installed per base controller.
