mbus A429 Send Labels At Rates.vi
Description
Periodic transmit of labels.
ARINC 429 Sent Labels At Rates function transmits labelCount ARINC 429 words onto any port with adjustable word rates. ARINC 429 words are composed of the labels and data.
The SDI Discriminate parameter is an optional advanced parameter. It can be kept unwired or wired to false for non-advanced needs.
When SDI Discriminate is set to true, the scheduler treats outgoing messages using the same label but different Source-Destination Identifiers (SDI) as separate messages.
The SDI is the two Least Significant Bits of the data. It serves as a label extension and can help differentiate two identical units in the same environment.
When SDI discrimination is enabled, the pair label-SDI are the message ID and each label-SDI pair can have its own rate.
| Parameters | ||
|---|---|---|
| error in | in | error conditions that occur before entering the function |
| portHandle | in | reference to the configured port |
| labelCount | in | number of ARINC 429 labels sent to the data bus |
| labels | in | ARINC 429 labels |
| data | in | ARINC 429 data |
| rates | in | ARINC 429 word rates in milliseconds |
| sdiDiscrimination | in | Advanced settings, refer to above description for details. Set to false by default |
| portHandle | out | reference to the configured port |
| error out | out | error information |
| function return | out | function execution status |
Handle parameters are available as input and output. Output is a copy of the input and may be used to daisy chain successive VIs and reduce wire density.
Availability
Available in Multibus VI 1.0 and later.
See Also
Examples
A429 Schedule Labels.vi A429 Suspend Resume.vi A429 Update Labels.vi