Download Kloehn Pump Manual - First Ten Angstroms

4.9.2 Flags
Flags are software switches which can be set (“turned on”), cleared (“turned off”),
and tested. Flags are used to indicate the status of something or to change the
way something is done after the first time.
There are six general-purpose flags (f1...f6) and three special-purpose flags (f7...f9).
The flag instructions require a “R” command to execute immediately. The test-andjump instructions must be used within a program.
fn+
set flag “n”
(n:
1...9) [n/a]
fn-
clear flag “n”
(n:
1...9) [n/a]
fn?
query the status of flag “n”. Return a “0" is cleared or a “1" if set.
(n:
1...9) [n/a]
fnp
test the status of flag “n”. If it is set, then clear it and jump to program label
“p”. This is useful for altering the way something is done the first time this
instruction is encountered. The first time will see the flag set and subsequent
times will see it cleared.
(n:
1...8) [n/a]
fn-p
test the status of flag “n”. If it is clear, then jump to program label “p”. This
is useful for altering the way something is done after the first time it is
encountered.
(n:
1...8) [n/a]
4.9.3 SET HOME Button Control
The SET HOME button on the front panel can be inhibited, thus preventing it from
being inadvertently activated by a user. There are two ways this can be done, one
of which is a long-term control and one of which is intended to be dynamically set
“on-the-fly”.
When the button is enabled, pressing the button will perform the “W5" command
function, which sets the current syringe position as the “zero”, or top-of-stroke
position and stores the result into non-volatile memory. This is an operation which
should be done only when the valve, syringe, or washer has been changed or when
the top-of-stroke position needs to be changed.
When the button is disabled, pressing the button has no effect. The two means of
controlling the activation of the SET HOME button are:
~Hn
Set the SET HOME button mode. If no parameter “n” is entered, the current
value of "n" is returned. Use this as a long-term enable or inhibit. The
number times the SET HOME function can be done is limited to 10,000.
(n:
0 = the button operation is enabled.
1 = the button operation is disabled.) [0]
P/N 23454 Rev. C, 06-13-03
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