User`s manual

AFG Arming
Sources
The arming sources set by the ARM[:STARt]:LAYer2:SOURce <source>
command are:
• BUS – The GPIB Group Execute Trigger (GET) command or the
IEEE-488.2
*TRG common command.
• ECLTrg0 and ECLTrg1 – The VXIbus ECL trigger lines.
• EXTernal – The Agilent E1445A’s front panel “Start Arm In” BNC
connector (TTL levels).
• HOLD – Suspend arming. Use the ARM:STARt:LAYer2:IMMediate
command to start the waveform.
• IMMediate – Immediate arming. An arm is internally generated two
to three reference oscillator cycles after the start trigger sequence
enters the wait-for-arm state.
• TTLTrg0 through TTLTrg7 – The VXIbus TTL trigger lines.
AFG Arm Count The arm count specifies the number of arms the AFG is to receive before it
returns to the Idle state. The arm count is set with the
ARM[:STARt]:LAYer2:COUNt command. The range is 1 through 65535, or
INFinity. The default value is 1.
Waveform
Repetition Count
The waveform repetition (cycle) count specifies the number of cycles per
arm. The cycle count is specified with the
ARM[:STARt][:LAYer[1]]:COUNt
<
number> command. The range for the cycle count is 1 through 65536, or
INFinity. The default value is INFinity.
Stop Trigger
Sources
Stop triggers abort the waveform cycle (repetition) count at the end of the
current cycle. The stop trigger sources set with the
TRIGger:STOP:SOURce
command are:
• BUS – The GPIB Group Execute Trigger (GET) command or the
IEEE-488.2
*TRG common command.
• EXTernal – The AFG’s front panel “Stop Trigger/FSK/Gate In”
BNC connector (TTL levels).
• HOLD – Suspend stop triggering. Use the TRIGger:STOP:IMMediate
command to terminate a start arm cycle (default source).
• TTLTrg0 through TTLTrg7 – The VXIbus TTL trigger lines.
Chapter 5 Arming and Triggering 199