Errors - Rs-232-C Reporting; Rs-232-C Interface Control Command; Sending Waveforms To The Model 75; Reading Waveforms From The Model 75 - Wavetek 75 Instruction Manual

3.31.6 Sending Waveforms to the Model 75 Table 3-4.
Waveforms are sent to the Model 75 by sending a 'K'
followed be a number representing the first address (X
Character
location) in the waveform, then sending successive data
values (Y values) preceded by 'L's until the end of the
!
waveform. Each timean 'L' issent followed byaY value
the waveform address is incremented. Sending a 'K'
followed by an address only affects the transfer of
waveform data and does not affect the waveform
directly. Any part of the 81 92 point waveform memory
can be written to whether or not it is between the cur-
rent start and stop addresses (active waveform). For
example, sending a 10 step ramp from X
=
20 to X
=
29
would be accomplished by sending the following to the
Model 75;
3.31.7 Reading Waveforms From the Model 75
$
Reading waveform data from the Model 75 toa computer
is accomplished by setting the talk mode to 7 by sending
an 'XT7' and then reading successive data values (Y
values) from the Model 75. Data values are read start-
ing at a location specified by sending a 'K' followed by
the address (Xvalue) of the first point. Each time a data
value is read, the waveform address is incremented.
Neither sending a 'K' followed by an address nor reading
a data value has any direct effect on the waveform out-
put. To read a data value over the RS-2326 interface,
send a '?' to cause the Model 75 to send the data value.
?
3.31.8 Programming Reference Guide
Except for "XV" (terminator), table 3-2 in the GPIB sec-
tion applies to the RS-232C interface as well as the GPIB
bus and can be used as a reference guide when sending
commands to the Model 75. It describes each pro-
XOFF
gramming character and which numeric characters are
to be used to program parameter values.
When programming the Model 75, keep in mind that at
initial power-up, the following remote settings have been
XON
defaulted.
Function ASCll Character Default Setting
RS-2324 Interface Control Commands
Causes the Model 75 to go into
remote mode. In remote mode
the instrument setup can only be
changed from the RS-232-C
interface and not from the front
panel. The front panel keys will
still be active arid can be used to
query the instrument setup con-
ditions. The instrument can be
returned back to local mode by
sending a
'$'
over the interface
or pressing the LOCAL soft key
(unless it locked out by
I * ' ,
see
below).
ASCII
Causes the Model 75 to go to
local mode. In local mode the
instrument setup can be
changed only from the front
panel and will ignore any com-
mands from the interface
(except '! ').
Function
Causes the Model 75 to disable
the LOCAL soft key. After this,
theonly way the instrument can
return to local mode is with a
'$'
character from the interface.
Causes the Model 75 to send the
talk message as set by the talk
mode (XTn) to the connected
device.
Causes the Model 75 to stop
transmitting data to the con-
nected device (see handshaking
above).
Cancels the XOFF condition
allowing the Model 75 to con-
tinue transmitting.
LF and send a CR Class 1 errors are caused by programming values out-
+
LF.)
side the legal limits of the selected parameter. For
example, programming an amplitude of 500 volts will
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O 2006
3.32 ERRORS
-
RS-2324 REPORTING
0
0 (Accept a CR or
3.32.1 Class 1 Errors
Talk Mode
Terminator
XT
XV