Coupler I/O Modbus ODOT CN-8011

CN-8011 Modbus RTU Coupler

C Series Remote I/O System

The C Series is a remote I/O system composed of a network adapter module and extended I/O modules. The network adapter module is responsible for fieldbus communication and can establish communication with the master controller or host computer software. The CN-8011 Modbus-RTU network adapter supports standard Modbus-RTU communication and function codes 01/02/03/04/05/06/15/16/23. This device allows real-time monitoring of the IO module communication status.

Technical Parameters

• Reverse polarity protection: Yes
• Nominal voltage: 24Vdc, Range: 19.2-28.8Vdc
• Power consumption: 30mA@24Vdc
• Internal Bus Power:
  • Maximum current: 2.5A@5VDC
  • Isolation: Isolation between system power supply and field power supply
  • Nominal voltage: 24Vdc, Range: 19.2-28.8Vdc
  • Maximum field current: 8A DC
• Supported IO Modules: 32 units
• Wiring: Max. 1.5mm² (AWG 16)
• Mounting Type: 35mm DIN rail
• Dimensions: 115 x 51.5 x 75mm
• Weight: 130g

Environmental Specifications:

• Operating temperature: -35 ~ 70℃
• Operating humidity: 5%-95% (non-condensing)
• Protection: IP20

Modbus-RTU Parameters

• Protocol: Modbus-RTU/ASCII
• Supported Function Codes: 01 / 02 / 03 / 04 / 05 / 06 / 15 / 16
• Transmission Speed (Baud Rate): 2400~115200bps
• Number of Stations:
  • 1~63 (configured via selector)
  • 64~247 (configured via software)
• Interface: 5-pin screw terminal
• Data Bits: 7, 8
• Parity: None, Even, Odd
• Stop Bits: 1, 2
• Maximum Bus Length: 1200m (RS485, 2400 baud)
• Termination Resistance and Offset: Configured via selector.

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