Oct 17, 2016 · A Boeing 787 incorporates ARINC 664 for the main network with some subsystems on ARINC 429 and a number of sensors and cockpit controls on CAN (ARINC 825). Almost all the switches on the B787 overhead panel go through a couple CAN busses, eliminating dozens of wire runs. There's also a significant difference in cost. $\endgroup$ –

Aug 31, 2015 · ARINC 429 transceivers have been implemented with 32-bit shift registers. Parallel access to that shift register is often octet-oriented. As such, the bit order of the octet access is the bit order of the accessing device, which is usually LSB 0; and serial transmission is arranged such that the least significant bit of each octet is ...

Nov 20, 2024 · Wondering if ARINC-664 (and ARINC-629) have backwards combability with ARINC-429. I realize -664 uses Ethernet while -429 is implemented using a two-wire data bus. However, wanted to see if any of the 32-bit ARINC-429 are "ported" upwards.

Jun 15, 2017 · ARINC 429 is a defined standard that not only describes the packet structure (32 bits) but also the data formats for different labels depending on the equipment ID. To know how to properly decode an ARINC 429 label you need to know the Equipment ID, which can then be used to look up the meaning of a specific label.

I think I have an understanding of the differences between the types of ARINC word formats, but would just like to get some input to see if my understanding is correct. In the ARINC 429 specification, it is discussed that there are some differences in how messages are handled between the two formats. Data Field

Sep 27, 2016 · The receiver has to be programmed. It's important to remember that A429 is a unidirectional hard-wired bus with a single transmitter and multiple receivers. Each connection is physically unique and the reason for all the pin-out diagrams …

Jan 27, 2022 · Appendix E of the ARINC 429 Part 1 spec dated 2004 provides the guidelines for label assignments such as: label ranges for BNR/BCD/Discrete data; Maintenance vs normal data; Label 000 should not be used and label 377 is reserved for the Equipment Identification.

There's only 8 questions with the ARINC-429 tag and no other ARINC type tags. While there are over 100 ARINC standards, I doubt there would be enough questions against them to justify a tag. The Avionics tag works well for these type questions. If there was interest, it might be more appropriate to have a general Industry Standards tag. $\endgroup$

Apr 8, 2017 · The ARINC 429 Data standard uses the serial bus to transmit packets of information, called labels. These labels are 4 bytes (32 bits) long. An ARINC 429 receiver is designed to expect a constant stream of labels to update the receiver's internal data within a certain time limit.

Jul 11, 2017 · The primary reason for moving away from ARINC-429 is that it is a single transmitter/multiple receiver architecture. This results in a large amount of physical wire. That adds weight and requires maintenance. A bus such as ARINC-664, which is based on Ethernet, can significantly reduce wire.