Interface Description - Siemens SINUMERIK 840Di Manual

2 Hardware Descriptions
2.4 MCI board extension slot variation (SW 11.00 and higher)
2.4.3

Interface description

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