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 Descriptions
Содержание SINUMERIK 840Di
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