HEIDENHAIN TNC 335 Technical Manual - Manual (Page 67)

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TNC 360 11 PLC inputs/outputs 8/95
11.2.2 PLC output
The PLC outputs O0 to O30 and the "Control is operational" output are on connector X21 (PLC
output). The PLC outputs O0 to O7 are also to be found on the connector for the machine control
panel (X27).
See also Section "Machine control panel".
X21 PLC output
D-sub connector (37-pin female insert)
Pin Number Assignment
1 O0
2 O1
3 O2
4 O3
5 O4
6 O5
7 O6
8 O7
9 O8
10 O9
11 O10
12 O11
13 O12
14 O13
15 O14
16 O15
17 O16
18 O17
19 O18
20 O19
21 O20
22 O21
23 O22
24 O23
25 O24 1)
26 O25 1)
27 O26 1)
28 O27 1)
29 O28 1)
30 O29 1)
31 O30 1)
32 Do not use
33 0 V (PLC) 1)
34 Control operational
Housing Outer screen
1) Cannot be switched off via EMERGENCY STOP