VXI VT1538A Variable Pulse Width by angle, Preset Angular Position, Rotational Pulse Mode

ALG:SCALAR’ALG1’,’Pos3’,300

ALG:UPDATE INIT

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ALG:SCALAR 'ALG1','Pos1',NewPos1

ALG:SCALAR 'ALG1','Pos2',NewPos2

ALG:SCALAR 'ALG1','Pos3',NewPos3

ALG:UPDATE

preset ch 47’s pulse pos to 300°

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start algorithm execution

calculate values for NewPos(n)

later, adjust channel 45’s position while algorithm running later, adjust channel 46’s position while algorithm running later, adjust channel 47’s position while algorithm running values in update queue sent to variables

Figure 22. Variable Position, Width Preset by Time

Rotational Pulse Mode:

Variable Pulse Width (by angle), Preset Angular Position

In this mode, the angular pulse width is controlled by the algorithm, and the angular position is preset before INIT. See Figure 23. Use the following command sequence:

SOURce:FUNCtion:RPULse (@<ref_channel>),(@<ch_list>) to select the channels that will output angular positioned pulses, and to specify the reference channel.

Agilent E1538A Enhanced Frequency/Totalize/PWM SCP 33