HEIDENHAIN TNC 306 Technical Manual - Manual (Page 393)

3/2000
TNC 416/TNC 406/TNC 306 Commands 7-103
3.14.4 Overwriting of a STRING (OVWR)
Abbreviation for PLC Editor: OVWR (OVERWRITE)
Execution time [µs] < 80
Number of bytes STRING memory 10
Immediate STRING —
STRING from error message or dialog files —
Operands: S
Operation:
With the OVWR command a STRING from the STRING Accumulator is stored in a STRING memory.
This command functions in a similar manner to the = command, with the difference that the
character "STRING-End" is not transferred alongside. By this means, the beginning of a STRING
which is already in the STRING memory, can be overwritten.
The selection of the memory, into which the STRING should be copied, proceeds using the
Argument after the operand designation. Whereby only the Arguments 0 – 3, which address a
STRING memory (S0 – S3) are valid here.
Example for storing a string:
1
S0
S1
128
S2
S3
Initial condition: PLC ERROR MESSAGE (Line 10):HYDRAULIC OIL
2 = S0
1 L S#E10
Line Instruction STRING Accumulator
H Y D R A U L I C O I L
1 128
Final condition:
Line 1: Load the STRING from PLC ERROR MESSAGE line 10 into the STRING accumulator.
Line 2: The contents of the STRING accumulator is loaded into the STRING memory S0
128
S0
S1
S2
S3
H Y D R A U L I C O I L
H Y D R A U L I C O I L
Instructions