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ODOT CANopen Bus Coupler Remote IO Modular
ODOT CANopen Bus Coupler Remote IO Modular
ODOT CANopen Bus Coupler Remote IO Modular
ODOT CANopen Bus Coupler Remote IO Modular
ODOT CANopen Bus Coupler Remote IO Modular

ODOT CANopen Bus Coupler Remote IO Modular

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Product Attributes

Model No.CN-8021

Packaging & Delivery

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Product Description
ODOT CN-8021 CANopen Bus Coupler Remote IO Modular
CANopen is an open and flexible high-level protocol with more and more applications. Based on the CAN bus, it combines low cost and high performance, and provides an attractive distributed control solution for Industrial Automation, medical devices, public transportation, elevators, maritime electronics, and other applications.
It could support max 128 PDO, 64 TPDO, and 64 RPDO.
CANopen Node ID supports the value ranges from 1 ~ 99.
CANopen conforms to DS301 and DS401 standards.
The bus communication baud rate is from 10Kbps ~ 1Mbps.
It supports NMT, PDO, SDO, Heartbeat and SYNC.
It could use physical switches to control terminal resistance access, baud rate, slave address and other parameters.
WTP -40~85℃
Power Supply 24VDC
Field Power Supply Current Max. DC 8A
Isolation System Power to Field Power Isolation
Power Supply Nominal:24VDC, Range: 19.2~28.8VDC
Field Power Current Max. DC 8A
IO Modules Supported 32 pcs
Wiring Max.1.5mm²(AWG 16)
Mounting Type 35mm Size DIN-Rail 
Size 115*51.5*75mm
Weight 130g
Hardware Parameter
System Power
Nominal:24VDC, Range: 19.2~28.8VDC
Current: Max.2A@24VDC
Reverse Protection: YES
Power Consumption 50mA@24VDC
Internal Bus Supply Current Max.: 2.5A@5VDC
Isolation System Power to Field Power Isolation
Power Supply Nominal:24VDC, Range: 19.2~28.8VDC
Field Power Current Max. DC 8A
IO Modules Supported 32 pcs
Wiring Max.: AWG 18   Min.: AWG 24
Installation 35mm DIN-Rail
Size 115*51.5*75mm
Weight 130g
Environment Specification
Operating Temperature of Vertical Installation -35℃~70℃
Operating Temperature of Horizontal Installation -35℃~60℃
Relative Humidity 5~ 95%RH (No Condensation)
Storage Temperature -40℃~85℃
Storage Humidity 5~ 95%RH (No Condensation)
Manufacturing Test Temperature -40℃~75℃
Ingress Protection Rating IP20
CANOPEN Parameter
Protocol CANopen DS401
Connect the interface 5PIN terminal
Station Address Dial code setting(1-99)
Process Data Input Max. 512 Byte      Output Max. 512 Byte
Configuration Interface Type-C
Transmission Rate 10 kbit/s, 20 kbit/s, 50 kbit/s, 100 kbit/s, 125 kbit/s, 250 kbit/s, 500 kbit/s, 800 kbit/s,1000 kbit/s
Application scenarios:
CN-8021
FQA
Q:How many TPDO/RPDO does CN-8021 support?
A:Supports 64 TPDOs and 64 RPDOs, enabling high-speed data exchange and real-time control.
Q:What is the maximum input/output capacity of CN-8021?
A:Maximum input 512 bytes, output 512 bytes, suitable for small to medium distributed Control Systems.
Q:How many C-series Remote IO Modules can CN-8021 expand?
A:Up to 32 modules can be expanded.
ODOT Solutions
Certifications & Quality Assurance:
ODOT Products comply with international industrial standards, including CE and RoHS, and undergo strict quality control to ensure long-term reliable operation in industrial environments.
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ODOT maintains sufficient inventory for standard models.
Most products can be shipped within 1-3 working days, helping customers accelerate project schedules.
Professional technical support and application assistance are available throughout the project lifecycle.
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