Fluke 5790A, Руководство оператора

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5790A
Operators Manual
5-8
Table 5-1. Operating State Transitions
From To Use
1722A Gpib
Command
Serial
Command
Local Remote MLA + REN REMOTE REMOTE
Local Local With Lockout LLO + REN LOCKOUT LOCKOUT
Remote Local
GTL, or "GO TO LOCAL
CONTROL" softkey
LOCAL LOCAL
Local With
Lockout
Remote/Lockout MLA + REN
REMOTE, or any
5790A command
REMOTE
Remote/Lockout LLO + REN LOCKOUT LOCKOUT
Remote/Lockout Local REN not LOCAL LOCAL
5-13. Command Syntax Information
The following syntax rules apply to all the remote commands. (A command consists of a
word by itself or a word followed by one or more parameters.) The rules for parameter
syntax are provided first (including proper usage of units and multipliers), followed by
the rules for extra spaces, followed by the rules for terminator usage. A description of
how the 5790A processes incoming characters provides the basis for answering other
possible questions about syntax. Information about syntax of response messages is also
given.
5-14. Parameter Syntax Rules
Many of the remote commands require parameters. Improper use of parameters causes
command errors to occur. When a command error occurs, bit CME (5) in the Event Status
Register (ESR) goes to 1 (if enabled in ESE register), and the error is logged in the error
queue. Table 5-2 lists the vocabulary of units accepted in command parameters and used
in responses.
General rules for parameter usage are:
1.
When a command has more than one parameter, the parameters must be separated by
commas. For example: "CLOCK 133700,071791").
2. Numeric parameters may have up 15 significant digits and their exponents can be in
the range +/-1.0E+/-20.
3. Including too many or too few parameters causes a command error.
4. Null parameters cause a command error (e.g., the adjacent commas in "CLOCK
133700, , 071791").
5. Expressions, for example "(4+2*13)", are not allowed as parameters.
6. Binary Block Data can be in one of two forms. The first form accepts data bytes after
the #0 until the ASCII Line Feed character is received with an EOI signal. In the
second form, the non-zero digit specifies the number of characters that will follow in
the <digits> field. These characters must be 0 through 9 (ASCII 48 through 57
decimal). The value of the number in the <<digits> field defines the number of user
data bytes that will follow in the <<user data> field.
#0 <<user data> <<ASCII Line Feed with EOI>
or
#<<non-zero digit> <<digits> <<user data>
or
"string"