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C 1.3)
AND-Command:
U
With the aid of the U-command,
two input variables
can be gated according
to the logical AND-function
The first
input variable
is either:
the logic result of an imrnediately
preceding
gating operation
(II, UN, 0, ON, X0, XON)
or
logic "1"
in the event of an immediately
preceding
operation
bluing R, RN, S, SN or =.
The second
input variable
is self-addressed
with
the U-command.
Symbol
PLC-Programme
U E27
C 1.4)
AND-Command
with
inverted
operand:
UN
With the aid of the UN-command,
two input variables
can be gElted according
to the logical AND-function.
The first
input variable
is either:
the logic result
of an immediately
preceding
gating operation
(II, UN, 0, ON, X0, XON)
or
logic "1"
in the event of an immediately
preceding
operation
being R, RN, S, SN or =.
The second
input variabk
is self-addressed
with
the UN-command
and inverted.
Command
Abbreviation
Symbol
PLC-Programme
1 Precedirlg
;;;Iq
1 UN E12
!p4;th
1 UN
C
1.5)
OR-Command:
0
With the aid of the 0-command,
two input variables
can be gated according
to the logical OR-function.
The first input variable
is either:
the logic result of an immediately
preceding
gating operation
(II, UN, 0, ON, X0,
XON)
or
logic "0"
in the event of an immediately
preceding
operation
being R, RN, S, SN or =.
The second
input variable
is self-addressed
with
the 0-commanc.
Command
Abbreviation
*
Symbol
PLC-Programme
OR
0 E8
16
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