HEIDENHAIN TNC 415 (259 9x0) Service Manual - Manual (Page 41)

SERVICE MANUAL TNC 415B/425
Page 38
Issue: 20.08.95
6.2.8 Pin Layout: PA 110
X1 Connection to Logic Unit or
1.PL X2, X3, X4, X5
Analogue Inputs
±
10V
Pin No. Assignment Pin No. Assignment
1, 2, 3 0 V 1 voltage input (+/- 10 V)
4 serial IN 2 2 0 V
5, 6, 17, 18 do not assign 3 shield
7 -RESET
8 -WRITE EXTERN
9 WRITE EXTERN X6 PA 110 Power Supply
10 -O5 Pin No. Assignment
11 -O3 1 +24 V
12 -O1 2 0V
13 shield
14, 15 + 12V
16 board ID (PK)
19 serial IN 1 X7, X8, X9, X10 Inputs for PT 100
20 control ready for operation Thermistors
21 -serial OUT Four-wire connector with const. current source
22 serial OUT Pin No. Assignment
23 -O4 1 I+ constant current for PT100
24 -O2 2 U+ measuring input
25 -O0 3 U- measuring input
4 I- constant current for PT100
5 shield
Allocation of Analogue Inputs to Internal PLC Memory Addresses
Input Internal Memory Address
PA as 1. expansion PA as 2. expansion
X2 W496 W464
X3 W498 W466
X4 W500 W468
X5 W502 W470
X7 W504 W472
X8 W506 W474
X9 W508 W476
X10 W510 W478