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General Rules The general rules for parameter usage is as follows:
1. Numeric parameters may have up 15 significant digits and their exponents can
be in the range ± -1.0E ± -20.
2. Including too many or too few parameters causes a command error.
3. Null parameters cause an error, e.g., the adjacent commas in OUT
1V, ,;OPER.
4. Expressions, for example 4+2*13, are not allowed as parameters.
Extra Space or Tab Characters
In the command descriptions in Chapter 5, parameters are shown separated by
spaces. One space after a command is required (unless no parameters are
required). All other spaces are optional. Spaces are inserted for clarity in the
manual and may be left in or omitted as desired. You can insert extra spaces or
tabs between parameters as desired. Extra spaces within a parameter are generally
not allowed, except for between a number and its associated multiplier or unit.
Chapter 5 contains examples for commands whose parameters or responses are not
self-explanatory.
Terminators
Table 4-9 summarizes the terminator characters for both the IEEE-488 and RS-232
remote interfaces.
Terminator
Function
Carriage Return (CR)
Line Feed (LF)
Backspace (BS)
Form Feed (FF)
Examples:
RS-232 Mode using a terminal
RS-232 Mode using a program
IEEE-488 Mode OUT 1 V
Table 4-9. Terminator Characters
ASCII Character
Number
Program
13
Chr(13)
10
Chr(10)
8
Chr(8)
12
Chr(12)
OUT 1 V <Enter>
Comm1.Output = "OUT 1 V" + Chr(10)
Remote Operation
Using Commands
Control Command
Terminator
<Cntl> M
<Cntl> J
<Cntl> H
<Cntl> L
4
Language
Command
Terminator
\n
\r
\b
\f
4-19
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