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Refer to Chapter 4 of the Programming guide for more information on the status registers. Protect Press this key to access the protection menu list. Display Command Function PROT:CLEAR Clear the status registers of all activated protection signals. The fault causing a signal must be corrected or removed before the register can be cleared. CURR:PROT Set overcurrent protection function (ON or OFF). VOLT:PROT Set the overvoltage protection level1 DELAY Set the time delay for activating a protection fault after programming the output Shift Status Press this key to access the status menu list. Note that in the following list, commands ending in ? clear the registers when they are read. For this reason the registers are read only after you press Enter , not when you scroll to the command Display Command Function *CLS Executes the clear status (*CLS) command STATUS:PRESET Execute the STATus:PRESet command *ESR? Return Event Status register value *STB Return Status Byte register value OPER:EVEN? Return STAT:OPER:EVENT? value OPER:COND Return STAT:OPER:COND? value QUES:EVEN? Return STAT:QUES:EVENT? value QUES:COND Return STAT:QUES:COND? value Notes: 1Programmed in peak volts. (Other voltage parameters are programmed in rms volts) value = a numeric value char = a character string parameter . and . scroll through the command list. . and . scroll through the parameter list. Front Panel Operation - 4 Trigger and List Control Keys The Trigger Control key controls output transient triggers. The List key controls the generation of output lists. A list can contain up to 100 points, each of which can specify an output change (or transient). Refer to Chapter 4 of the Programming Guide for more information about programming triggers and lists. Trigger Press this key to access the trigger control menu list. Control Display Command Function INIT:IMMED Initiate the transient trigger sequence immediately. INIT:CONT Set continuous trigger initiation (ON or OFF). TRIG:SOUR Select transient trigger source (BUS, EXT, TTLT or IMM). DELAY Set trigger delay in seconds. ABORT Abort all trigger sequences. SYNC:SOUR Select trigger sync source (PHASE or IMM). SYNC:PHASE Set synchronous phase reference angle in degrees. Shift List Press this key to access the list commands Display Command Function COUNT Specifies the number of times a list repeats. DWEL: List of output dwell times. FREQ: List of output frequencies. FSLW: List of output frequency slew rates PHASE: List of output voltage phase angles (f) SHAP: List of output waveform shapes.1 (SINE, SQUARE or CSIN) CSIN = clipped sine wave STEP Response of list to triggers (ONCE or AUTO). TTLT: List of Trigger Out pulses (0=no pulse; 1=pulse). VOLT: List of ac output voltages (f) VSLW: List of output voltage slew rates (f) Notes: 1User-defined waveshapes will also appear in this list when created. f = phase selectable on Agilent 6834B value = a numeric value char = a character string parameter index = a numeric value that represents a list point from 0 to 99 p.pIndex and q°qIndex scroll through the command list. and scroll through the parameter list. and scroll through the desired list points. EOL is displayed when the end of the list is reached. When a value is edited, pressing Enter automatically advances to the next list point. Pressing Clear Entry truncates or clears the list at the presently displayed list point. 4 - Front Panel Operation Entry Keys Refer to the examples later in this chapter for more details on the use of these keys. - 321 0 . 7 8 9 4 5 6 ENTRY E Calibration Enter Clear Entry Figure 4-4. Entry Keys . . These keys let you scroll through choices in a parameter list that apply to a specific command. Parameter lists are circular; you can return to the starting position by continuously pressing either key. If the command has a numeric range, these keys increment or decrement the existing value. 0 -9 0 through 9 are used for entering numeric values. . is the decimal . point. For example, to enter 33.6 press: 3 3 . 6 Enter. • The backspace key deletes the last digit entered from the keypad. This key lets you correct one or more wrong digits before they are entered. Enter This key executes the entered value or parameter of the presently accessed command. Until you press this key, the parameters you enter with the other Entry keys are displayed but not entered into the ac source. Before pressingEnter you can change or abort anything previously entered into the display. After Enter is pressed, the ac source returns to Meter mode in most cases. In Harmonic or List mode, the ac source displays the next point in the list. Shift E This key specifies an exponential power of 10. For example, the value for 100ms can be entered as either . 0 0 0 1 , or ...

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