Req. 5.2.2.1.2: "Command Rates"

The SIU FSW shall receive commands across the CTDB at a rate of up to 20 commands per second.

Basis (help)

[2] (3.2.6.1.2)

2: "LAT Instrument - Spacecraft Interface Requirements Doc." (NASA 433-IRD-0001)

3.2.6.1.2: "LAT Real-Time Command Frequency"

The SC shall transmit real-time commands to the LAT across the CTDB at a rate of up to 20 commands per second.

Context (help)

Test(s)

002a: Command Functional

This test shall verify that all LAT commands are exercised through the 1553 interface, with command execution and completion status reported in telemetry when command verification features are switched on. The test shall also verify that the SIU FSW validates commands and command parameters prior to command execution. Finally, the test shall verify that the SIU executes individual commands received directly from the SC or executes preprogrammed command sequences (block commands) when triggered by a command from the SC, and can properly execute single commands and block command items in an interleaved or serial fashion, as necessary.