MTS Series 793 Application - Manual (Page 264)

MTS MultiPurpose TestWare®
Road Surface Output Process
Command Processes 264
Relative Time Signal If selected, the process reads the current command value on each channel when
the process runs. These commands are added to each point in the time history
as it is read from its file. and the modified command is played out. With this
feature you can preload a channel and then play out the time history relative to
that preloaded value. If not checked, the time history will be played out as
stored in the disk file.
Drive has an offset When enabled and relative mode is not selected, the process will start by
ramping to the first command point in the time history, and end at the last
command point in the time history, without returning to zero.
When enabled and relative mode is selected, the process will start by ramping
to the first command point in the time history, and will end by returning to the
starting point after the last specified pass is completed.
Note The command signal will not return to zero (or to the starting point in
relative mode) between files in the sequence, but will transition directly
between the last command point of one drive file and the first
command point of the following drive file.
Status Displays messages about channel mapping and full-scale status after the
application checks the mapping and unit selections on the Mapping tab. These
messages are updated each time the user modifies the channel, mode, or unit
selection on the Mapping tab. The application will ensure that no two file
channels are mapped to the same station channel. When the check is complete,
the application will display either “Invalid Channel Map” or “Valid Channel
Map.” The process cannot be run with an invalid channel map.
If the mapping is valid, the application checks full scales of each channel in the
file against the range of the selected control mode for each channel. The
message “Full Scales Outside Limits” or “Full Scales in Limits” will display
the results. If the mapping is bad, the outside limits text will display.
The valid/invalid channel map message and full scale in/outside limits
messages reflect the validity of the channel mapping and the comparison of
each file channel’s full scale versus the station channel’s full scale.
Command Tab (part 2 of 2)
I TEM D ESCRIPTION