HEIDENHAIN TNC 407 (243 020) Technical Manual - Manual (Page 84)

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TNC 407/TNC 415/TNC 425 11 PLC inputs/outputs 01.98
11.2 Connector assignment
Power supply see section "PLC power supply"
11.2.1 PLC inputs
The PLC inputs I0 to I31 are on connector X42 (PLC input).
The PLC inputs I128 to I152 are on the connector for the machine control panel (X46).
See also the heading "Machine control panel".
X42 PLC input D-sub 37-pin female connection
Pin number Assignment Pin number Assignment
1 I0 19 I18
2 I1 20 I19
3 I2 21 I20
4 I3 Acknowledgment for
"Control is operational" test 22 I21
5 I4 23 I22
6 I5 24 I23
7 I6 25 I24
8 I7 26 I25
9 I8 27 I26
10 I9 28 I27
11 I10 29 I28
12 I11 30 I29
13 I12 31 I30
14 I13 32 I31
15 I14 33, 34 Do not use
16 I15 35, 36, 37 0 V (PLC) test output; Do not
use
17 I16 Housing Outer screen
18 I17