Load (L) - HEIDENHAIN TNC 426 PB/M Technical Manual

7.7.3 LOAD (L)

Logic processing
with the LOAD
command
Function
Load the operand
content into the logic
accumulator.
Gate the content of
the logic
accumulator and
input I5 with AND.
Assign the gating
result to output O2.
7 – 86
Syntax: L (LOAD)
Operands: M, I, O, T, C
Action:
Load the value of the addressed operand into the logic accumulator. Always
use the L command at the beginning of a logic chain in order to be able to gate
the operand in the following program sequence.
Example:
Gate the inputs I4 and I5 with AND, and assign the result to output O2.
Initial state:
Input I4 = 1
Input I5 = 0
Output O2 = ?
STL Accumulator contents [bit]
31..15 ....................
L I4 x ..... x x x x x x x x 1 x x x x x x x
A I5 x ..... x x x x x x x x 0 x x x x x x x
= O2 x ..... x x x x x x x x 0 x x x x x x x
7 ................. 0
HEIDENHAIN Technical Manual TNC 426, TNC 430
Operand contents [bit]
1
0
0