HP E1563A, User Manual, Page: 98 / 166

98 Digitizer Command Reference
digitizer is placed in the wait-for-trigger state using the INITiate command.
•
When a Group Execute Trigger (GET) bus command or *TRG common
command is executed and the digitizer is not in the wait-for-trigger state, the
“Trigger ignored” error is generated.
•
TRIGger:SOURce INTernal1-2 (E1563A) or TRIGger:SOURce:INTernal1-4
(E1564A) triggers a reading when the level specified by the
TRIG:LEVel<channel> command is met. The TRIG:SLOPe setting
determines whether the trigger occurs when the signal rises above (POSitive)
or falls below (NEGative) the specified level on that channel.
Note
If TRIGger:SOURce INT<n> is set, CALCulate<n>:LIMit:LOWer[:STATe] or
CALCulate<n>:LIMit:UPPer[:STATe] are disabled if they were enabled.
<n> represents the channel number used for the internal trigger source and the
channel used for testing a limit. Refer to the first block diagram in chapter 2 for
information about how the internal trigger source is driven by the level signal.
•
TRIG:SOURce1 is set to the appropriate TTLT<n> line by the TRIG:MODE
MASTer | SLAVe command. TRIG:SOURce1 can not be changed unless the
trigger mode is NORMal. Attempting to change TRIG:SOURce1 when mode
is MASTer or SLAVe will cause a “settings conflict” error.
•
TRIG:SOURce2 is not affected by TRIG:MODE MASTer | SLAVe
operation.
•
Executable when initiated: No
•
Coupled command: Yes; TRIGger:LEVel, TRIGer:MODE,
OUTPut:TTLT<n>:SOURce TRIG and CALC:LIMit:LOWer[:STATe] and
CALC:LIMit:UPPer[:STATe]. Changes to TRIG:SOURce1 will cause a
“settings conflict” error if TRIG:MODE is set to MASTer or SLAVe.
•
Reset (*RST) condition: TRIGger:SOURce1 IMMediate
TRIGger:SOURce2 HOLD
TRIGger:SOURce[<n>]?
TRIGger:SOURce[<n>]?
queries present setting for the specified trigger source (1 or 2).
The command defaults to trigger source number 1 if “n” is not designated.
Parameters
Parameter
Name
Parameter
Type
Range of
Values
Default
Units
n
numeric 1 or 2 None