Siemens SINUMERIK 840Di - Interface Description

06.03
2.4 MCI board extension slot variation (SW 11.00 and higher)
2-66
 Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
2.4.3 Interface description
Interfaces of the MCI board extension slot variation
Table 2-8 Interfaces of the MCI board extension slot variation
Interface
Designation Type
Cable distributor X121 Connector
MCI board extension X4 Plug connector
Interface description of the cable distributor interface (X121):
S Connector: 37-way Sub D connector
(see cable distributor Section 2.6, page 2-76)
S Pin assignment:
Table 2-9 Pin assignment: Interface X121
Pin Designation Type
1)
Function
1 M24EXT VI/VO 24V ground, 24V output ground
2 M24EXT VI/VO 24V ground, 24V output ground
3 DOUT_CON(1) O 2nd 24V output
4 DOUT_CON(0) O 1st 24V output
5 DIN_CON(3) I 4th 24V input
6 DIN_CON(2) I 3rd 24V input
7 DIN_CON(1) I 2nd 24V input
8 DIN_CON(0) I 1st 24V input
9 MEPU0_S I 1st Sensor probe input (signal: 24V)
10 MEPU0_C I 1st Sensor probe input (reference: 0V)
11 MPG1_XA I input 2nd handwheel, track A
12 P5 VO Optional 5V handwheel power supply
13 P5 VO Optional 5V handwheel power supply
14 MPG1_XB I input 2nd Input handwheel, track B
15 MPG0_XA I input 1st Input handwheel, track A
16 P5 VO Optional 5V handwheel power supply
17 P5 VO Optional 5V handwheel power supply
18 MPG0_XB I input 1st Input handwheel, track B
19 Not assigned – –
20 P24EXT VI 24V output load power supply
21 P24EXT VI 24V output load power supply
22 DOUT_CON(3) O 4th 24V output
23 DOUT_CON(2) O 3rd 24V output
24 MEXT VO 24V input ground
25 MEXT VO 24V input ground
26 MEXT VO 24V input ground
27 MEXT VO 24V input ground
28 MEPU1_S I 2nd Sensor probe input (signal:
29 MEPU1_C I 2nd Sensor probe input (0V)
Interface overview
Cable distributor
(X121)
2 Hardware Descri
p
tions