Siemens Sinumerik 840D Series Function Manual page 26

2 Configuration
2.2 Integration in SINUMERIK 840D/SIMODRIVE 611 digital
J
S7-300
H1
E
B
B1
G3
Device bus
A
MS
Battery and plug-in fan
H2
unit
H3
Digital I/O
H9
(high-speed NC I/O)
SITOP power
(external PS)
P
External 26.5 V
supply
Fig. 2-3 System components
2-26
G4
G1
MCP
H4
G2
I1
H10
K
I
NCU HLA
module
H11
H12
Measure-
ment (2x)
Handwheel
BERO
(2x) (1x of M)
inputs
Enable
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 Edition
Floppy
MMC CPU
D
C
H5
F
H6
O
Note:
Display of hydraulics for one axis
 Siemens AG, 2003. All rights reserved
02.99
10.03
Ä Ä
Ä Ä
L
M
(GND)
H8
N
Position sensing
Pressure sensor A
Pressure sensor B
Servo solenoid
valve
Shutoff valve