Scientech S200 Vector User Manual

Page 30

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Remote interface messages consist of zero or more commands or queries separated by semicolons and
terminated by a linefeed (IEEE488) or a carriage return(RS232). A command or query consists of a
command or query header followed by zero or more arguments separated by commas.

cmd1 arg1;cmd2 arg1,arg2;cmdN arg1

Typical Remote Message

Messages must be less than 75 characters.

The queries RPT?, SND?, COL?, and *OPC?, and the commands COL and *OPC are intended to be placed
as the last command in a message. Placing them elsewhere will not result in harm to the instrument, but it
may produce results which seem unusual.
Queries which have not finished will be aborted by the receipt of additional commands or queries. This will
result in Query Errors in the IEEE488 interface. If a RPT? COL? or SND? query is immediately followed by
another command, it is likely that no data will be transmitted. If COL is followed by another command,
statistics gathering will be halted unless the command *WAI appears between the two commands.


REMOTE INTERFACE LANGUAGE COMMANDS AND QUERIES

Most commands and queries may be used with D200's, S200's, and AD30's. Some commands; however,
are suitable only for use on the D200; and others work only with the IEEE interface. The commands common
to all instruments are presented first, followed by those used only for the D200, then those used only by the
AD30, and finally by those commands used only in the IEEE488 interface. In the descriptions that follow, the
command will be presented first, followed optionally by one or more arguments, separated by commas.
When the vertical bar "|" is used, it denotes the word "or", and signifies that one of the items separated by
bars may be inserted into the space of the argument. For example, the command:

*XXX A | B,C

has two arguments, the first of which may be 'A' or 'B', and the second of which is the letter 'C'.


COMMON COMMANDS

Commands in this group are available on the AD30, D200P, D200PC, D200C, and S200 from either the
RS232 or the IEEE488 remote interface.

*IDN? This query takes no arguments, and returns a comma separated collection of four strings,
describing respectively the manufacturer of the instrument (Scientech Inc), the model number (D200,S200, or
AD30), the serial number, and the firmware version number.

*SAV 0 This is the IEEE488.2 common command. It takes the single argument 0 (zero). When used from
either remote interface, it saves the current instrument configuration to the configuration save area. The next
time the instrument is powered up, or the *RST or *RCL 0 command is executed, the configuration will be
restored to the values saved.


RANGE? The RANGE query returns a decimal number between 1 and the maximum range of the
instrument. The meaning of the number returned varies depending upon the particular instrument, certain

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