Example - Agilent Technologies EPM-P Series Programming Manual

Using STATus
You can use the STATus subsystem to generate an SRQ to interrupt your
program when a limit failure occurs. This is a more efficient method than
using SENSe or CALCulate, since you do not need to check the limit
failures after every power measurement.
Refer to "Status Reporting", on page 1-76 and "STATus Subsystem", on
page 10-2 for further information.
Configuring the TTL Outputs
The TTL Outputs on the rear panel Rmt I/O port can be used to determine
when a predefined limit in either, or both, windows has been exceeded.

Example

The following program segment shows how to use TTL output 1 to indicate
when a measurement is outside the range -30 dBm to -10 dBm. It is
assumed that the measurement has already been set up in the upper
window (window 1).
CALC1:LIM:LOW -30
CALC1:LIM:UPP -10
CALC1:LIM:STAT ON
OUTP:TTL1:FEED
"CALC1:LIM:LOW,CALC1:LIM:UPP"
OUTP:TTL1:ACT HIGH
OUTP:TTL1:STAT ON
EPM-P Series Power Meters Programming Guide
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Power Meter Remote Operation
Setting Measurement Limits
Sets the lower limit for the upper
window to -30 dBm.
Sets the upper limit for the
upper window to -10 dBm.
Turns the limits on.
Specifies that TTL output 1
should be asserted when the
upper or lower limit fails on the
upper window.
Specifies that TTL output 1
should be active-high.
Activates TTL output 1
1-67