Setting The Address; Setting The Termination Character; Time Stamp; Remote Commands - Fluke 1504 User Manual

1504 Thermometer Readout
User's Guide
7.2.1
7.2.2
7.2.3
7.3
7.3.1
28

Setting the Address

The IEEE-488 bus requires that each device has a unique address. The default
address of the 1504 is 22 but can be changed if necessary. The IEEE-488 ad-
dress of the 1504 is set within the Comm menu after the serial linefeed param-
eter. (This menu option will not appear if the IEEE-488 interface is not
installed). Press the Menu button ("SEt?" appears) then press the Comm but-
ton. The display will briefly indicate "SErIAL", then "bAUd" and then display
the current baud rate. Press Enter several times until "IEEE" appears. The dis-
play will briefly indicate "AddreSS" and then display the current IEEE-488
address. Use the U and D buttons to change the number then press Enter.

Setting the Termination Character

The 1504 will normally terminate transmissions from the IEEE-488 port with a
linefeed (newline) character. Some systems may require a terminating carriage
return instead. The termination character can be changed if necessary. The ter-
mination character is set within the Comm menu after the IEEE-488 address
parameter. (This menu option will not appear if the IEEE-488 interface is not
installed). The display will briefly indicate "EOS" (end of string) and then dis-
play the current setting. Use the U and D buttons to change the termination
character then press Enter.

Time Stamp

Measurement data read from the GPIB interface can be stamped with the
time-of-day. For instructions on setting the time stamp and system clock see
Section7.1.3 above.

Remote Commands

ASCII commands are used to instruct the 1504 to perform certain actions.
ble 5 provides a complete list of commands. These commands can be used with
either the RS-232 or IEEE-488 interface. All commands sent to the 1504 must
be terminated with a carriage return or linefeed. Either upper or lower case let-
ters are accepted. Commands used to set a parameter are issued with the com-
mand header, an "=" character, and the parameter value. For example,
U=C<EOS> sets the units to Celsius. (The symbol <EOS> represents the termi-
nation character.) Commands used to request data are issued with only the
command header. For example, T<EOS> causes the 1502A to return the most
recent measurement. Basic operations using commands are explained in the fol-
lowing sub-sections.

Measurement Commands

The following commands relate to reading measurement data.
Ta-