ARM[:STARt]:SOURce[<n>]

[:STARt]:SOURce[<n>]

ARM[:STARt]:SOURce[<n >] <source > configures the arm system to respond to the specified source(s). Unless one of the two sources is set to HOLD, both will be active, and an occurrence of the selected event on either source will arm the system for measurement.

The sources available are:

BUS: The Group Execute Trigger (GET) HP-IB command or the IEEE-488.2 *TRG common command.

ECLTrg0 and ECLTrg1: The VXIbus ECL trigger lines.

TTLTrg0 through TTLTrg7: The VXIbus TTL trigger lines.

EXTernal1: The HP E1429’s front panel "Ext 1" BNC connector.

INTernal[1]: Arms the start trigger when the signal on channel 1 meets the conditions specified by ARM:STARt:LEVel1.

INTernal2: Arms the start trigger when the signal on channel 2 meets the conditions specified by ARM:STARt:LEVel2.

HOLD: Disable this arming source. If both sources are set to HOLD, then the ARM:STARt:IMMediate command must be sent before measurements will proceed.

IMMediate: Arm the start trigger as soon as the INITiate:IMMediate command is received. This choice is only valid for ARM:STARt:SOURce1, and requires that ARM:STARt:SOURce2 be set to HOLD.

196 Command Reference

ARM Subsystem

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HP E1429A manual ARMSTARtSOURcen