China Electronics Technology Instruments AV3672 Series, User Manual

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9 Remote control
9.1 Basis of Remote Control
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Table 9.4 SCPI Command Parameters and Response Types
Parameter type Response Data Types
Numeric Real or integer
Extended Numeric Integer
Discrete Discrete
Boolean Numeric Boolean
String String
Piece
Block with Definite Length
Block of uncertain length
Non-decimal Numeric
Hexadecimal system
Octal
Binary system
Numerical parameter
Special instrument commands and general commands can be expressed as numeric parameters. All kinds of
common decimal counting can be applied for reception of numeric parameters, including the plus or minus,
decimal and scientific counting methods. If one device can only receive the specific numeric type, such as the
integer, the received numeric parameter will be automatically rounded.
The following are examples of numeric parameters:
0 no decimal point required
100 fractional digits optional
1.23 leading signs allowed
4.56e<space>3 space allowed after the E in exponential
-7.89E-01 use either E or e in exponential
+256 l allowed
5 digits left of decimal point optional
Extended Numeric Parameters
The numeric parameter is extended to specify the physical quantity in the majority of measurements related to
special instrument commands. Extended numeric parameters accept all numeric parameter values and other special
values as well. The extended numeric parameters include the MAXimum and MINimum. Other special values,
such as UP and DOWN, are received depending on the analysis capability of the instrument. All effective
parameters are listed in the SCPI command table.
Note: The extended numeric parameters are not applicable to general commands or STATus subsystem commands.
The following are examples of extended numeric parameters:
101 Numerical parameter
1.2GHzGHz can be used as the index (E009).
200MHzMHz can be used as the index (E006).
-100mV negative 100 millivolts
10 degrees 10 degree
MAXimum sets parameter to largest possible value
MINimum sets parameter to smallest possible value
UP a stepper up
DOWN a stepper down
Discrete Parameters