Allen-Bradley 20-COMM-C Communication Adapter

FAQ

Q1. What is the main function of the 20-COMM-C module?
It provides ControlNet network communication for Allen-Bradley PowerFlex drives via the DPI interface.

Q2. Which drives are compatible with this module?
It works with PowerFlex 70, PowerFlex 700 series drives and other DPI-based motor control devices.

Q3. What communication protocol does it use?
It uses ControlNet over coaxial media with a fixed 5 Mbps data rate.

Q4. Does it support redundant networking?
Yes, it supports redundant coax channels and hot backup communication for higher reliability.

Q5. How is it installed in the drive system?
It mounts internally and connects through the DPI port of the drive, with external ControlNet BNC connections.

Q6. What is its power consumption?
It typically draws around 275–350 mA at 5 V DC supplied by the host drive.

Q7. What are its physical size and weight?
Its dimensions are 103 × 80 × 16 mm, and it weighs approximately 0.2 kg.

Q8. What is its typical application?
It is used in industrial automation systems where PowerFlex drives need to be integrated into ControlNet-based PLC networks for coordinated control.

20-COMM-C Allen Bradley

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