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D19: transfer values to plc, D20: nc and plc synchronization, Programming: q parameters 8.7 additional functions – HEIDENHAIN TNC 320 (34055x-06) ISO programming User Manual

Page 234

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Programming: Q Parameters

8.7

Additional functions

8

234

TNC 320 | User's Manual for DIN/ISO Programming | 5/2013

D19: Transfer values to PLC

The

D19 function transfers up to two numerical values or Q

parameters to the PLC.

Increments and units: 0.1 µm or 0.0001°

Example: Transfer the numerical value 10 (which means 1 µm or
0.001°) to the PLC

N56 D19 P01 +10 P02 +Q3 *

D20: NC and PLC synchronization

This function may only be used with the permission
of your machine tool builder.

With the

D20 function you can synchronize the NC and PLC during

a program run. The NC stops machining until the condition that you
have programmed in the D20 block is fulfilled. The TNC can check
the following PLC operands:

PLC
operand

Abbreviation

Address range

Markers

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