Omega Engineering OMB-NETSCAN 1500, User Manual

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API Command Reference Appendix A
A-50 NetScan User’s Manual
X - Execute
TYPE System
EXECUTION
Immediate
SYNTAX X Execute preceding command string.
DESCRIPTION
Most commands are interpreted and processed as they are received but are not executed until the Execute ( X )
command is issued. Commands sent without an X are stored in an internal buffer and are not executed until an
X is received.
While a command line is being interpreted, the front panel LEDs will not be updated. These LEDs will only be
updated when the unit is in a ready state. In order to determine if the unit is in a ready state, perform a Serial
Poll for the ready bit (4).
If multiple system commands are used in the same string, each use of the command must be followed by the
Execute (
X ) command. Any number of Execute commands may be inserted into the same command string.
EXAMPLE
PRINT#1,"C" ‘ Clear the current channel configuration
PRINT#1,"C1-16,1 C17,2 C18-32,3"
‘ Send channel configuration
PRINT#1,"U4" ‘ Get HLL for the new channel configuration
‘ (ERROR light turns ON)
PRINT#1,"X" ‘ Instruct the unit to execute its command input buffer.
Now the unit has its new channel configuration
PRINT#1,"E?X" ‘ Find out what caused the error
INPUT#1,A$ ‘ Retrieve Error response
PRINT A$ ‘ Screen shows E128 - Conflict Error due to fact that no
channels were configured ( C is a deferred command)
when the U4 was executed ( U4 is an immediate
command)