User manual

148
Program description - Logical switches
Logical switches
Programming logical switches
This option is available as standard on the
mc-20 HoTT transmitter only.
Use the selection keys of the left or right
four-way button to scroll to the »Logical
switches« menu option in the Multi-function menu:
Switch display
Channel 1 curve
Phase settings
Phase assignment
Control switch
Logical switch
Open this menu option with a tap on the center SET
key of the right four-way button:
AND
AND
AND
L1
L2
L3
–––
L4
Logical switch
AND
–––
–––
–––
SEL
L1
L2
L3
L4
–––
–––
–––
–––
This function, which is available as standard on the
mc-20 HoTT and can be unlocked on the mc-
16 HoTT as an extra-cost option, can be used to
link together two switches, control switches and / or
logical switches, or any combination of the above, in
an “AND” or “OR” arrangement. A total of eight logi-
cal switches “L1 … L8” can be programmed in every
model memory.
The result of such a logical switch function – shown
in the display’s rightmost column – can be used as
another switch function. Allocation of a switch to a
logical function is done in the familiar manner in the
columns labeled by the two switch symbols, as de-
scribed in the section “Physical control, switch and
control switch assignments” on page 68. That is,
by moving the respective switch from OFF to ON or,
after a tap on the center SET key of the right four-way
button, by selecting one of the expanded switches
with the selection keys:
AND
L4
Logical switch
SEL
L4
Move desired switch
to ON position
(ext. switch: SET)
Logical switch
SEL
Control/Logic/fix sw
C2 C3 C4 FX
FXi L1 L2 L3 L4
C1
Potential applications for this:
Multiple functions, which are normally independent of
one another, are to be put into a defined state by way
of an »Emergency switch«.
“AND” / “OR”
Once a given value field has been activated in the
column labeled SEL, the “AND” and “OR” logic opera-
tor can be selected with the selection keys.
• “AND” function
The logical switch is only closed when both input
switches are closed.
• “OR” function
The logical switch is closed when at least one of
the input switches is closed.
Note:
The difference between AND and OR logic switches
is made clear by the settings and input states of the
display figure below.
OR
AND
AND
L1
L2
L3
–––
L4
Logical switch
AND
4
2
L1
L2
L3
L4
–––
3
1
SEL
L1
L2
“L3” is only closed when both the “L1” and “L2”
switches are closed. This means that both switches,
1 and 2, must be closed and, at the same time, either
3 or 4.
Anwendung
In order to make these logical switches usable, they
can be specified in those menus which use switches
by calling them up via the additional “expanded
switches” selection menu:
Move desired switch
to ON position
(ext. switch: SET)
A brief tap on the center SET key of the right four-way
button will afford access to the expanded switches:
Control/Logic/fix sw
C2 C3 C4 FX
FXi L1 L2 L3 L4
C1
Now use the selection keys to pick the desired control
switch “C1 … C4”, fixed switch “FX” or logical switch
“L1 … L8” or the respected inverted switch “C1i …
C4i”, “FXi” or “L1i … L8i”, for example, “L3i”:
Control/Logic/fix sw
C2i C3i C4i L1i L2i
L4i
L3i
L5i L6i L7i
A brief tap on the center SET key of the right four-way
button will adopt the selected switch into the menu:
mc
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