| Table | |
Command |
| Description |
|
|
|
DSP? |
| Queries the present status of the display (see page 78). Response is either a 1 (on) |
|
| or a 0 (off). |
DSP " xxxxxxxxxxxx” |
| Puts the quoted string on the power supply's front panel display (see page 79). |
|
| Only numerals, upper case letters, and spaces are allowed (12 characters max) in |
|
| the quoted string |
*ERR? |
| Queries the present programming or hardware error (see page 79). An error code |
|
| number is returned over the |
|
| pressing the ERR key will cause the appropriate error message (not the error |
|
| code) to be displayed at the front panel. The error register is cleared after being |
|
| read. |
*FAULT? < ch > |
| Queries the fault register of the specified output channel (see Mask and Fault |
|
| Register, page 74). A bit is set in the fault register when the corresponding bit in |
|
| both the status and the mask registers. The response is an integer 0 to 255. The |
|
| fault register is cleared after being read. |
ID? |
| Queries the identification (model number) of the supply. Response can be HP |
|
| 6621A, HP 6622A, HP 6623A, HP 6624A, or HP 6627A, as applicable (see ID |
|
| Query, page 79). |
IDATA < ch >, < Ilo >, < Ihi > |
| Sends data to calibrate the current setting and readback circuits of the specified |
|
| output channel. Ilo and Ihi are measured values which the supply uses to calculate |
|
| correction constants (see Appendix A). |
IHI < ch > |
| Causes the current of the specified output channel to go to the high calibration |
|
| point (see Appendix A). |
ILO <ch> |
| Causes the current of the specified output channel to go to the low calibration |
|
| point (see Appendix A). |
IOUT? < ch > |
| Queries the measured output current of the specified output channel (see page |
|
| 69). The response is a real number. The front panel display can be used to |
|
| monitor the measured output current (and voltage) of the selected output channel. |
*ISET < ch >, < current > |
| Sets the current of the specified output channel (see page 69). |
*ISET? <ch> |
| Queries the present current setting of the specified output channel (see page 69). |
|
| The response is a real number. |
*OCP < ch >, < on/off > |
| Enables the overcurrent protection circuit for the specified output channel. This |
|
| circuit, when enabled, causes the output to go to the off state when the output is in |
|
| the + CC mode. On/off is a 1 to turn on (enable) or a 0 to turn off (disable) the |
|
| circuit (see page 72). |
|
|
|
* Indicates that the command can be executed from the front panel.
106 Command Summary