Duplex Mode; Linefeed; Serial Operation; Ieee-488 Communication (Optional) - Fluke 7341 User Manual

ature measurements transmitted from the serial interface. If the sample period
is set to 5, the bath transmits the current measurement over the serial interface
approximately every five seconds. The automatic sampling is disabled with a
sample period of 0. Press "SET" to choose to set the sample period. Adjust the
period with "UP" or "DOWN". Press "SET" to set the sample period to the
new value or "EXIT" to abort and skip to the next parameter.
10.1.2.3

Duplex Mode

The next parameter is the duplex mode indicated with "dUPL". The duplex
mode may be set to half duplex ("HALF") or full duplex ("FULL"). With full
duplex, any commands received by the bath via the serial interface are executed
and immediately echoed or transmitted back to the device of origin. With half
duplex, the commands are executed but not echoed. The default setting is full
duplex. The mode may be changed using "UP" or "DOWN". Press "SET" to
save the new setting or "EXIT" to abort and skip to the next parameter.
10.1.2.4

Linefeed

The final parameter in the serial interface menu is the linefeed mode. This pa-
rameter enables ("On") or disables ("OFF") transmission of a linefeed charac-
ter (LF, ASCII 10) after transmission of any carriage-return. The default setting
is with linefeed on. The mode may be changed using "UP" or "DOWN". Press
"SET" to set the sample period to the new value or "EXIT" to abort and skip to
the next parameter.
10.1.3

Serial Operation

Once the cable has been attached and the interface set up properly the control-
ler will immediately begin transmitting temperature readings at the pro-
grammed rate. The set-point and other commands may be sent to the bath via
the serial interface to set the bath and view or program the various parameters.
The interface commands are discussed in Section 10.3, Interface Commands.
10.2

IEEE-488 Communication (optional)

The IEEE-488 interface is available as an option. Baths supplied with this op-
tion may be connected to a GPIB type communication bus, which allows many
instruments to be connected and controlled simultaneously. To eliminate noise,
the GPIB cable should be shielded.
10.2.1

Setup

To use the IEEE-488 interface connect an IEEE-488 standard cable to the back
of the bath, set the device address, and set the transmission termination
character.
To enter the IEEE-488 parameter menu, press "EXIT" while holding down
"SET", then release both buttons to enter the secondary menu. Press "SET" re-
peatedly until the display reaches "PrObE". Press "UP" repeatedly until the
10 Digital Communication Interface
IEEE-488 Communication (optional)
59