HEIDENHAIN TNC 128 (77184x-01) - Manual (Page 211)

HEIDENHAIN TNC 128 211
8.8 A
d
ditional functions Example: Assign the value of the active scaling factor for the Z
axis to Q25
FN 19: PLC: Transfer values to the PLC
The function FN 19: PLC 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
FN 20: WAIT FOR: NC and PLC synchronization
With the FN 20: WAIT FOR 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 FN 20 block is fulfilled. The TNC can
check the following PLC operands:
Execution status, 992 10 - Block scan active
1 = Yes, 0 = No
11 - Search phase
14 - Number of the last FN14 error
16 - Real execution active
1 = Execution , 2 = Simulation
Group name, ID no. Number Index Meaning
55 FN 18: SYSREAD Q25 = ID210 NR4 IDX3
56 FN 19: PLC=+10/+Q3
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