Description
The National Instruments NI-9881 is a C Series CANopen Interface Module designed for a wide range of applications including industrial automation, maritime electronics, off-road vehicles, medical equipment, building automation, and public transportation. This module facilitates reliable communication in demanding environments utilizing the CANopen protocol on top of a CAN physical layer.
With a part number of 195433D-81L (781673-01), this module falls under the category of Industrial Communication Interfaces. It is specifically engineered to provide a robust solution for applications requiring high-speed, dependable communication networks.
The NI-9881 model supports a maximum baud rate of up to 1 Mbits/s, enabling efficient data transfer rates for industrial applications. It features one CANopen channel and utilizes a 9-pin, D-Sub male connector for physical connection. This module also includes two common pins that are internally connected to the isolated reference of the module, ensuring reliable signal transmission and reception. Additionally, an optional shield pin (SHLD) is available for enhanced signal integrity.
One of the key features of the NI-9881 is its software-selectable bus termination. This allows for the easy configuration of 120 Ω termination resistors between CAN_L and CAN_H, adapting the module to various network topologies and ensuring optimal performance in different operating conditions.
In summary, the National Instruments NI-9881 C Series CANopen Interface Module is a versatile and powerful solution for integrating CANopen communication protocols into a wide array of industrial systems. Its robust design and flexible configuration options make it an ideal choice for meeting the demanding requirements of modern industrial applications.
| Specification | Detail |
|---|---|
| Part Number | 195433D-81L (781673-01) |
| Category | Industrial Communication Interfaces |
| Model | NI-9881 |
| Description | National Instruments NI-9881 C Series CANopen Interface Module |
| Application | Industrial automation, maritime electronics, off-road vehicles, medical equipment, building automation, public transportation |
| Communication Protocol | CANopen on top of CAN physical layer |
| Number of Channels | 1 CANopen channel |
| Maximum Baud Rate | Up to 1 Mbits/s |
| Connector Type | One 9-pin, D-Sub male connector |
| Common Pins | Two, internally connected to the isolated reference of the module |
| Optional Shield Pin | Yes (SHLD) |
| Bus Termination | Software-selectable, 120 Ω termination resistors between CAN_L and CAN_H |
Question 1: What is the protocol used by NI-9881?
Answer 1: CANopen
Question 2: What is the max baud rate of the NI-9881?
Answer 2: Up to 1 Mbits/s
Question 3: How many channels does the NI-9881 have?
Answer 3: 1 channel
Question 4: What type of connector does NI-9881 use?
Answer 4: 9-pin, D-Sub male connector
Question 5: Can the NI-9881’s bus termination be adjusted?
Answer 5: Yes, it’s software-selectable
