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Fn 20: wait for: nc and plc synchronization, 8 a d ditional f unctions – HEIDENHAIN iTNC 530 (340 49x-04) User Manual

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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