Counters - HEIDENHAIN TNC 426 PB/M Technical Manual

7.2.4 Counters

December 2001
The PLC has 32 counters, which you control through special markers with the
symbol C. After you have set a marker from the C0 to C31 range, the TNC
loads the counter with the value that is saved in machine parameter
MP4120.x. The marker range C48 to C79 indicates whether the counter is
finished. With markers C96 to C127 you can start and stop the counter.
Example:
Logic diagram for counter C1
Preset value in MP4120.1 = 10 (PLC cycles)
Set counter Counter is
running
C0 C48
C1 C49
C2 C50
C3 C51
C4 C52
C5 C53
C6 C54
C7 C55
C8 C56
C9 C57
C10 C58
C11 C59
C12 C60
C13 C61
C14 C62
C15 C63
C16 C64
C17 C65
C18 C66
C19 C67
Operands
Counter is Machine parameter
starting
C96 MP4120.0
C97 MP4120.1
C98 MP4120.2
C99 MP4120.3
C100 MP4120.4
C101 MP4120.5
C102 MP4120.6
C103 MP4120.7
C104 MP4120.8
C105 MP4120.9
C106 MP4120.10
C107 MP4120.11
C108 MP4120.12
C109 MP4120.13
C110 MP4120.14
C111 MP4120.15
C112 MP4120.16
C113 MP4120.17
C114 MP4120.18
C115 MP4120.19
7 – 19