Set (S) - HEIDENHAIN TNC 426 PB/M Technical Manual

7.7.15 SET (S)

Function
Load the operand
content into the logic
accumulator.
Gate the content of
the logic
accumulator and
input I5 with OR
Since the result of
the operation is 1,
set output O2.
Since the result of
the operation is 1,
set marker M500.
7 – 98
Syntax: S (SET)
Operands: M, I, O, T, C
Action:
If the logic accumulator = 1, then set the addressed operand to 1, otherwise
do not change it. Use the S command at the end of a sequence of logical
gating operations in order to influence an operand independently from the
result of gating. This command can be used several times in succession (see
example).
Example:
Gate input I4 and I5 with OR. If the gating result is 1, then set output O2 and
marker M500.
Initial state:
Input I4 = 1
Input I5 = 0
Output O2 = ?
Marker M500 = ?
STL Accumulator contents [bit]
31..15 ..................... 7 ................. 0
L I4 x ..... x x x x x x x x 1 x x x x x x x
O I5 x ..... x x x x x x x x 1 x x x x x x x
S O2 x ..... x x x x x x x x 1 x x x x x x x
S M500 x ..... x x x x x x x x 1 x x x x x x x
HEIDENHAIN Technical Manual TNC 426, TNC 430
Operand contents [bit]
1
0
1
1