2 interface commands 35, Interface commands, 2 interface commands – Fluke 9140 Dry-well Calibrator User Manual

Page 40

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face commands are discussed in

Section

. All commands are ASCII character

strings terminated with a carriage-return character (CR, ASCII 13).

8.2

Interface Commands

The various commands for accessing the calibrator functions via the digital in-
terfaces are listed in this section (see

Table 2

). These commands are used with

the RS-232 serial interface. The commands are terminated with a carriage-re-
turn character. The interface makes no distinction between upper and lower
case letters, hence either may be used. Commands may be abbreviated to the
minimum number 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 “s”<CR> returns the current set-point and “s=150.0”<CR> sets the
set-point to 150.0 degrees.

In the following list of commands, characters or data within brackets, “[” and
“]”, are optional for the command. A slash, “/”, denotes alternate characters or
data. Numeric data, denoted by “n”, may be entered in decimal or exponential
notation. Characters are shown in lower case although upper case may be used.
Spaces may be added within command strings and will simply be ignored.
Backspace (BS, ASCII 8) may be used to erase the previous character. A termi-
nating CR is implied with all commands.

35

8 Digital Communication Interface

Interface Commands

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