Kepco MST 488 Programmer Manuale Utente Scaricare il pdf (Pagina 64)

C-2

MST 488-27 SVC 013004

FIGURE C-2. INX — INITIATE OP CODE COMMAND

FIGURE C-3. FTH — FETCH COMMAND

Syntax:

INX VOLT (initiate voltage reading)

INX CURR (initiate current reading)

Function

: Commences a data acquisition process in accordance with the preceding FNC command.

Description: The response to the INX command is a dynamic time-out value, unless a catastrophic error condition

exists, in which case an error message will be returned. If the time-out value returned is not zero, this

indicates the power supply’s output voltage or current has not yet settled. A time delay should be

observed before proceeding with the FTH command, or the command may be repeated until a zero

value is returned, but the preceding FTH command must also be repeated.

Example: INX VOLT Power supply initiates voltage reading)

FTH VOLT Power supply sends voltage reading to controller)

INX

Syntax: FTH VOLT (fetch voltage reading)

FTH CURR (fetch current reading)

Function: Commands the previously designated power supply to return the requested data reading.

Description: This command must immediately follow an INX command. The value returned is the value of the out-

put voltage or current, whichever was requested, unless a catastrophic error condition exists, in which

case an error message will be returned. The value observed will be in scientific notation.

Example: INX VOLT Power supply initiates voltage reading)

FTH VOLT Power supply sends voltage reading to controller)

FTH

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Kepco MST 488 Programmer Manuale Utente Pagina 64