Serial Operation; Interface Commands - Fluke 9133 User Manual

8
Digital Communication Interface
8.1.3

Serial Operation

Once the cable has been attached and the interface set up properly the con-
troller immediately begins transmitting temperature readings at the pro-
grammed rate. The set-point and other commands may be sent to the
instrument via the serial interface to set the instrument and view or pro-
gram the various parameters. The interface commands are discussed in Sec-
tion 8.2, Interface Commands.
8.2

Interface Commands

The various commands for accessing the instrument controller functions via
the digital interfaces are listed in Table 2. These commands are used with
both the RS-232 serial interface and the IEEE-488 GPIB interface. In either
case the commands are terminated with a carriage-return character. The in-
terface makes no distinction between upper and lower case letters, hence
either may be used. Commands may be abbreviated to the minimum num-
ber of letters, which determines a unique command. A command may be
used to either set a parameter or display a parameter depending on
whether or not a value is sent with the command following a "=" character.
For example, an "s"<cr> returns the current set-point and an "s=50.00"<cr>
sets the set-point to 50.00 degrees.
In the following list of commands, characters or date within brackets, "["
and "]", are optional. A slash, "/", denotes alternate characters or data. Nu-
meric data, denoted by "n", may be entered in decimal or exponential nota-
tion. Characters are shown in lower case although upper case may be used.
Spaces may be added within command strings and are simply ignored.
Backspace (BS, ASCII 8) may be used to erase the previous character. A ter-
minating CR is implied with all commands.
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