mbus CSDB Update Labels.vi
Description
The CSDB Update Labels function updates data attached to multiple CSDB labels in a periodic transmit. The CSDB labels must have already been created and have its rate defined. Refer to mbus CSDB Send Labels At Rates to first add CSDB labels.
The SI parameter is an optional advanced parameter. It can be kept unwired or wired to false for non-advanced needs.
When SI is set to true, the scheduler treats outgoing messages using the same label but different Source Identifiers (SI) as separate messages.
The SI 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 SI is enabled, the pair label-SI are the message ID and each label-SI 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 | out | number of CSDB messages to update |
| labels | in | CSDB labels to update |
| messageWords | in | CSDB new data to override |
| si | 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 1.3 and later.
See Also
mbus CSDB Send Labels At Rates.vi