HEIDENHAIN MANUALplus 620 Technical Manual page 1666

8.15.3 LOAD NOT (LN)
Logic processing
with the LOAD NOT
command
1666
Syntax: LN (LOAD NOT)
Operands: M, I, O, T, C
Action:
Load the one's complement 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 inverted logical state of inputs I4 and I5 with AND, and assign the
result to output O2.
Initial state:
Input I4 = 0
Input I5 = 1
Output O2 = ?
Function
Load the inverted 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.
STL Accumulator
content
LN I4 0
A I5
= O2
HEIDENHAIN Technical Manual MANUALplus 620
Operand content
1
1