Keithley 706 Instruction Manual page 68

20 CLEAR 7 (END LINE)
30 OUTPUT 718; "U3X"
(END LINE)
40 ENTER 718; A$
50 DISP A$
60 END
Clears Model 706.
Sends time and date.
Obtain data string.
Display data string.
End of program.
The commands are as follows:
UO-Sending UO command outputs the present channel
number. The present channel number can be sent with
or without a prefix depending on the present prefix
mode (G). Refer to the flowchart in Figure 3-6 for the se-
quence of sending the U and G modes. Refer to
paragraph 3.5.8 step 7 for information concerning the
prefix modes and their formats.
Ul-Sending the Ul command outputs all the channel
numbers. All the channel numbers can be sent with or
without a prefix depending on the present prefix mode
(G). Refer to the flowchart in Figure 3-6 for the se-
quence of sending the U and G modes. Refer to
paragraph 3.5.8 step 7 for information concerning the
prefix modes and their formats.
U2-Sending the U2 command outputs the digital I/O port
status. The digital I/O port status can be sent with or
without a prefix depending on the present prefix mode
(G). Refer to flowchart in Figure 3-6 for the sequence of
sending the U and G modes. Refer to paragraph 3.5.8
step 7 for information concerning the prefix modes and
their formats.
U3-Sending the U3 command outputs the time and date.
The time and date can be sent with or without a prefix
depending on the present prefix mode (G). Refer to the
. flowchart in Figure 3-6 for the sequence of sending the
U and G modes. Refer to paragraph 3.5.8 step 7 for in-
formation concerning the prefix modes and their for-
mats.
U4- Sending the U4 command outputs the status word. The
status word can be sent with or without a prefix depen-
ding on the present prefix mode (G). Refer to the
flowchart in Figure 3-6 for the sequence of sending the
U and G modes. Refer to paragraph 3.5.8 step 7 for in-
formation concerning the prefix modes and their for-
mats.
U5-Sending the U5 command outputs the channel settle
time. The channel settle time can be sent with or
without a prefix depending on the present prefix mode
(G). Refer to the flowchart in Figure 3-6 for the se-
quence of sending the U and G modes. Refer to
paragraph 3.5.8 step 7 for information concerning the
prefix modes and their formats.
UG-Sending the U6 command outputs the alarm time. The
alarm time can be sent with or without a prefix depen-
ding on the present prefix mode (G). Refer to the
flowchart in Figure 3-6 for the sequence of sending the
U and G modes. Refer to paragraph 3.5.8 step 7 for in-
formation concerning the prefix modes and their for-
mats.
U7-Sending the U7 command outputs the interval time. The
interval time can be sent with or without a prefix depen-
ding on the present prefix mode (GI. Refer to the
flowchart in Figure 3-6 for the sequence of sending the
U and G modes. Refer to paragraph 3.5.8 step 7 for in-
formation concerning the prefix modes and their for-
mats.
U8-Sending the U8 command outputs the programmed first
and last channel. The programmed first and last channel
can be sent with or without a prefix depending in the
present prefix mode (G). Refer to the flowchart in Figure
3-6 for the sequence of sending the U and G modes.
Refer to paragraph 3.5.8 step 7 for information concern-
ing the prefix modes and their formats.
US-Sending the U9 command outputs the previously :-
called buffer location. The buffer location can be sent
with or without a prefix depending on the present prefix
(G) mode. Refer to the flowchart in Figure 3-6 for the se-
quence of sending the U and G modes. Refer to
paragraph 3.5.8 step 7 for information concerning the
prefix modes and their formats.
FORMAT OUTPUT
FORMAT OUTPUT
ACCORDING TO ACCORDING TO
G MODE
U MODE
- - _ - . --. -.
OUTPUT
Figure 3-6. U and G Mode Sequence
3.6 STATUS BYTE FORMAT
The status byte contains information relating to data and er-
ror conditions within the instrument. The controller obtains
the status byte by using the serial polling sequence (SPE)
described in paragraph 3.4.2. Once the byte resides in the
3-27