Front Panel Operation
4-39
GPIB
With this selection, bus triggers are used to con-
trol scan spacing. Operation will pass into the channel
layer when a bus trigger (GET or *TRG) is received by
the Model 7001. See Section 5 for detailed information
on bus triggers.
Note: The front panel STEP key (see MANUAL) is ac-
tive with bus triggering selected. Pressing the STEP
key after the completion of a scan will start the next
scan (assuming the Model 7001 is programmed for an-
other scan; see NUMBER OF SCANS).
Select bus triggering from the SELECT SCAN SPAC-
ING menu by placing the cursor on GPIB and pressing
ENTER. The display will return to the SCAN CON-
TROL menu.
Manual
With this selection, the front panel STEP key
is used to control scan spacing. Operation will pass
into the channel layer when STEP is pressed.
Note: The front panel STEP key is active when TIMER,
EXTERNAL, GPIB or TRIGGER LINK is selected.
Select manual triggering from the SELECT SCAN
SPACING menu by placing the cursor on MANUAL
and pressing ENTER. The instrument will return to the
SCAN CONTROL menu.
Triglink
With this selection, scan spacing is controlled
by the Trigger Link of the Model 7001. Trigger Link is
an enhanced trigger system that uses up to six lines to
direct trigger pulses to and from other instruments.
Operation passes into the channel layer when the Mod-
el 7001 receives a trigger over the Trigger Link. See
paragraph 4.11 for details on using the Trigger Link.
Note: The front panel STEP key (see MANUAL) is ac-
tive with the Trigger Link selected. Pressing the STEP
key after the completion of a scan will start the next
scan (assuming the Model 7001 is programmed for an-
other scan; see NUMBER OF SCANS).
Select the Trigger Link from the SELECT SCAN SPAC-
ING menu by placing the cursor on TRIGLINK and
pressing ENTER. The following menu will be dis-
played:
SELECT INPUT LINE
#1 #2 #3 #4 #5 #6
The position of the cursor indicates the currently se-
lected input line.
To select a trigger input line for the Model 7001, place
the cursor on the desired line number and press EN-
TER. The following message will be displayed:
SELECT OUTPUT LINE
#1 #2 #3 #4 #5 #6
The position of the cursor indicates the currently se-
lected output line.
To select a trigger output line for the Model 7001, place
the cursor on a different line number and press EN-
TER. Note that you cannot use the same trigger line for
both input and output.
Immediate
With IMMEDIATE selected, operation
passes immediately into the channel layer. Select im-
mediate scanning from the SELECT SCAN SPACING
menu by placing the cursor on IMMEDIATE and press-
ing ENTER. The instrument will return to the SCAN
CONTROL menu.
Hold
When HOLD is selected, scan spacing is sup-
pressed. As a result, operation will not continue until
HOLD is cancelled by selecting one of the other scan
spacing selections. Select HOLD from the SELECT
SCAN SPACING menu by placing the cursor on
HOLD and pressing ENTER. The instrument will re-
turn to the SCAN CONTROL menu.
NUMBER-OF-SCANS
Use this menu item to define the
number of scans to be performed by the Model 7001.
With the SCAN CONTROL menu displayed, select this
menu item by placing the cursor on NUMBER-OF-
SCANS and press ENTER. The following menu will be
displayed:
NUMBER OF SCANS
INFINITE ENTER-SCAN-COUNT
Infinite
Use this selection to continuously repeat the
scan. Select continuous scanning from the NUMBER
OF SCANS menu by placing the cursor on INFINITE
and pressing ENTER. The display will return to the
SCAN CONTROL menu.
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