Agilent Technologies EPM-P Series Programming Manual page 350

TTL
[1|2]
Note: Either single or double quotes may be used. However, quotes are mandatory.
1. The numeric value must be the same for both LOW and UP.
Example
OUTP:TTL1:FEED "CALC1:LIM:UPP"
Reset Condition
On reset, the TTL output will represent an upper limit fail.
Query
OUTPut:TTL[1|2]:FEED?
The query command returns one of the strings shown in the table above,
indicating whether the asserted state of the TTL Output represents a fail
in the lower limit, upper limit or either limit for the selected
window/measurement.
Query Example
OUTP:TTL1:FEED?
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String
All the above strings must be matched exactly - long forms and omission of the
sub-op code are not permissible.
OUTput Subsystem
OUTPut:TTL[1]|2:FEED <string>
Description
This command asserts TTL
Output 1 whenever there is an
upper limit fail in the upper
window/upper measurement.
This command returns the string
for TTL Output 1.
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