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Technical Manual TNC 360 - heidenhain - DR. JOHANNES ...

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11.4 PLC I/O unit<br />

One PL 400 board with 63 PLC inputs, 31 PLC outputs and the "Control is operational" output can be<br />

connected to the logic unit. The PL 400 can be mounted directly on the logic unit. See Section<br />

"Power supply" for the power connection.<br />

11.4.1 PL 400 connection<br />

Pin connections on the logic unit<br />

X26 PLC I/O board (PL 400)<br />

D-sub connector (24-pin male insert)<br />

Pin Number Assignment<br />

1, 2, 3 0 V<br />

4 Serial IN 2<br />

5, 6, 17, 18 Do not use<br />

7 RESET<br />

8 WRITE EXTERN<br />

9 WRITE EXTERN<br />

10 A5<br />

11 A3<br />

12 A1<br />

13 Screen<br />

14, 15, 16 + 12 V (from PL 400)<br />

19 Serial IN 1<br />

20 EMERGENCY STOP<br />

21 Serial OUT<br />

22 Serial OUT<br />

23 A4<br />

24 A2<br />

25 A0<br />

Housing External shield<br />

8/95 <strong>TNC</strong> <strong>360</strong> 11 PLC inputs/outputs 3-45

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