Interface Description - Siemens SINUMERIK 840DiE sl Manual
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01/2007
2.3.3
Interface description
Interface overview
Cable distributor
(X121)
© Siemens AG 2007 All Rights Reserved
SINUMERIK 840Di sl Manual (HBIsl) – 01/2007 Edition
Interfaces of the MCI board extension slot variant
Table 2-5
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–pinSub D connector
(see cable distributor Section 2.4, Page2-61)
S
Pin assignment:
Table 2-6
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
30
MPG1_A
31
M
2.3 MCI board extension slot variant
Designation
Type
X121
Connector
X4
Plug connector
1)
Type
Function
VI/VO
24 V ground, 24 V output ground
VI/VO
24 V ground, 24 V output ground
2nd output 24 V
O
1st output 24 V
O
4th input 24 V
I
3rd output 24 V
I
2nd input 24 V
I
I
1st input 24 V
I
1st probe input (signal: 24 V)
I
1st probe input (reference: 0 V)
I
Input 2nd handwheel, track A inverted
VO
Optional 5 V handwheel power supply
Optional 5 V handwheel power supply
VO
I
Input 2nd handwheel, track B inverted
Input 1st handwheel, track A inverted
I
Optional 5 V handwheel power supply
VO
Optional 5 V handwheel power supply
VO
I
Input 1st handwheel, track B inverted
–
–
VI
24 V output load power supply
VI
24 V output load power supply
4th output 24 V
O
3rd output 24 V
O
24 V input ground
VO
24 V input ground
VO
24 V input ground
VO
VO
24 V input ground
I
2nd probe input (signal)
I
2nd probe input (0 V)
I
Input 2nd handwheel, track A
VO
Handwheel PS ground, TTL handwh. ground
2 Hardware Descriptions
2-57
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