Description
The 781673-01 is a part of the Industrial Communication Interfaces category, specifically the NI-9881 model. This model is an NI 9881, C Series CANopen Interface, 1 Port, designed for use with CompactRIO systems. It stands out for its ability to support PDOs and SDOs in accordance with CiA DS 301.
This module features 1 CANopen channel, allowing for efficient and reliable industrial communication. It supports a maximum baud rate of 1 Mbits/s, ensuring high-speed data transfer. The connection to the network is established via a 9-pin, D-Sub male connector, which is widely used in industrial environments for its robustness and reliability.
Additionally, the module includes two common pins, which are internally connected to the module’s isolated reference, enhancing safety and system integrity. For environments with high levels of electromagnetic interference, the module features an optional Shield Pin (SHLD). This pin is crucial for improved EMC performance and signal integrity, ensuring stable operation even in noisy environments.
Another significant feature of the NI-9881 is its software-selectable 120 Ω termination resistors between CAN_L and CAN_H. This flexibility allows for easy adaptation to different network configurations and requirements, optimizing communication efficiency.
| Specification | Detail |
|---|---|
| Part Number | 781673-01 |
| Category | Industrial Communication Interfaces |
| Model | NI-9881 |
| Short Description | NI 9881, C Series CANopen Interface, 1 Port |
| Description | CANopen Interface Module for CompactRIO systems, supports PDOs and SDOs according to CiA DS 301 |
| Channels | 1 CANopen channel |
| Maximum Baud Rate | 1 Mbits/s |
| Connector Type | 9-pin, D-Sub male connector |
| Common Pins | Two, internally connected to the module’s isolated reference |
| Optional Shield Pin (SHLD) | Yes, for improved EMC performance and signal integrity in noisy environments |
| Bus Termination | Software-selectable 120 Ω termination resistors between CAN_L and CAN_H |
Question 1: What is the part number for the NI 9881 module?
Answer 1: The part number is 781673-01.
Question 2: How many CANopen channels does the NI 9881 have?
Answer 2: It has 1 CANopen channel.
Question 3: What is the maximum baud rate of the NI 9881?
Answer 3: Up to 1 Mbits/s.
Question 4: What type of connector does the NI 9881 use?
Answer 4: It uses a 9-pin, D-Sub male connector.
Question 5: Does the NI 9881 support termination resistors?
Answer 5: Yes, it has software-selectable 120 Ω resistors.
