Ieee-488 Communication; Setup; Ieee-488 Interface Address; Interface Commands - Fluke 9116A User Manual

face commands are discussed in Section 7.3. All commands are ASCII charac-
ter strings terminated with a carriage-return character (CR, ASCII 13).
7.2

IEEE-488 Communication

The IEEE-488 interface is available as an option. Instruments supplied with this
option may be connected to a GPIB type communication bus that allows many
instruments to be connected and controlled simultaneously. To eliminate noise,
the GPIB cable should be shielded.
7.2.1

Setup

To use the IEEE-488 interface first connect an IEEE-488 standard cable to the
back of the calibrator. Next set the device address. This parameter is pro-
grammed within the IEEE-488 interface menu.
To enter the IEEE-488 parameter programming menu first press "EXIT" while
pressing "SET" and release to enter the secondary menu. Press "SET" repeat-
edly until the display reaches "PrObE". This is the menu selection. Press "UP"
repeatedly until the IEEE-488 interface menu is indicated with "IEEE". Press
"SET" to enter the IEEE-488 parameter menu. The IEEE-488 menu contains
the IEEE-488 address parameter.
7.2.2

IEEE-488 Interface Address

The IEEE-488 address is prompted with "AddrESS". Press "SET" to program
the address. The default address is 22. Change the device address of the calibra-
tor if necessary to match the address used by the communication equipment by
pressing "UP" or "DOWN" and then "SET".
IEEE-488 Operation Commands may now be sent via the IEEE-488 interface
to read or set the temperature or access other controller functions. All com-
mands are ASCII character strings and are terminated with a carriage-return
(CR, ASCII 13). Interface commands are listed below.
7.3

Interface Commands

The various commands for accessing the calibrator functions via the digital in-
terfaces are listed in this section (see Table 3). 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 inter-
face makes no distinction between upper and lower case letters therefore either
may be used. Commands may be abbreviated to the minimum number of letters
that determines a unique command. A command may be used to either set a pa-
rameter or display a parameter depending on whether or not a value is sent with
the command following a "=" character. For example: "s" returns the current
set-point and "s=150.00" sets the set-point to 150.00 degrees.
In the following list of commands, characters or data within brackets, "[" and
"]", are optional for the command. A slash, "/", denotes alternate characters or
7 Digital Communication Interface
IEEE-488 Communication
41