Fluke PM-3394B Initializing the CombiScope Instrument, How to reset the CombiScope instrument

2 - 4 GETTING STARTED WITH SCPI PROGRAMMING

2.2 Initializing the CombiScope Instrument

2.2.1How to reset the CombiScope instrument

The instrument itself can be reset by sending the *RST command. This sets the instrument to a fixed setup optimized for remote operation. The status and error data of the instrument can be cleared by sending the *CLS command.

PROGRAM EXAMPLE:

’*****

’Reset the instrument and clear the status data:

’*****	’Resets the instrument
CALL Send(0, 8, "*RST", 1)
CALL Send(0, 8, "*CLS", 1)	’Clears the status data

2.2.2How to identify the CombiScope instrument

The identity of the instrument can be queried by sending the *IDN? query, followed by reading the instrument response message. The options of the instrument can be queried by sending the *OPT? query, followed by reading the instrument response message.

PROGRAM EXAMPLE:

’*****

’Read and print the identity and options of the instrument:

’*****

response$ = SPACE$(65)

CALL Send (0, 8,	"*IDN?", 1)	’Requests for identification
CALL Receive (0,	8, response$, 256)	’Reads the ident string
PRINT "Ident: ";	LEFT$(response$, IBCNT%)	’Prints the ident string
CALL Send (0, 8,	"*OPT?", 1)	’Requests for options
CALL Receive (0,	8, response$, 256)	’Reads the options string
PRINT "Options: "; LEFT$(response$, IBCNT%)		’Prints the options string

2.2.3How to switch between digital and analog mode

After power on, a CombiScope instrument can be either in the digital or analog mode. After a *RST command the digital mode is selected. The INSTrument sub- system allows you to switch between the two modes. This can be done by speci- fying a predefined name (DIGital, ANALog) or the corresponding number (1 = digital, 2 = analog).

PROGRAM EXAMPLE:

’*****

’Initialize and change the operating mode of the CombiScope instrument:

’*****

CALL Send (0, 8, "INSTrument ANALog", 1) ’Switches to analog mode CALL Send (0, 8, "INSTrument:NSELect 1", 1) ’Switches back to digital mode