HEIDENHAIN iTNC 530 (340 49x-04) - Manual (Page 627)

HEIDENHAIN iTNC 530 627
1
1
.8 A
d
ditional F
unctions
FN 20: WAIT FOR: NC and PLC synchronization
With function FN 20: WAIT FOR you can synchronize the NC and PLC
with each other during a program run. The NC stops machining until
the condition that you have programmed in the FN 20 block is fulfilled.
The TNC can check the following PLC operands:
The following conditions are permitted in the FN 20 block:
Example: Stop program run until the PLC sets marker 4095 to 1
This function may only be used with the permission of
your machine tool builder.
PLC
operand
Abbreviation Address range
Marker M 0 to 4999
Input I 0 to 31, 128 to 152
64 to 126 (first PL 401 B)
192 to 254 (second
PL 401 B)
Output O 0 to 30
32 to 62 (first PL 401 B)
64 to 94 (second PL 401 B)
Counter C 48 to 79
Timer T 0 to 95
Byte B 0 to 4095
Word W 0 to 2047
Double
word D 2048 to 4095
Condition Abbreviation
Equal ==
Less than <
Greater than >
Less than or equal <=
Greater than or equal >=
32 FN 20: WAIT FOR M4095==1