Siemens SINUMERIK 810DE powerline Equipment Manual page 109

Analog value
The DMP compact module 1I NC analog is used to input and digitize an analog
representation voltage value. This voltage value is measured by an isolated differential input.
The converter result is available to the user in the form of two's complement.
The resolution is 4.88 mV for one bit. The duration for a converter cycle (from
triggering of conversion to the time at which the result can be read out) is max.
75 ms.
Table 8-7 Digital analog value representation for DMP compact module 1I NC analog
Input word
7 6 5 4
10 9
SG 2 2 2
Significance
0 1 1 1
0 0 0 0
Digital value 0 0 0 0
1 1 1 1
1 0 0 0
1 0 0 0
0 = always 0
PF = Power supply failure of the analog part
Example
circuits
Fig. 8-7
Copyright © Siemens AG 2006
SINUMERIK 810D Equipment Manual Configuration CCU (PHC) – 03/2006 Edition
8.5 DMP compact module 1I NC analog (6FC5211-0AA10-0AA0)
IB m
3 2 1 0 7 6 5
8 7 6 5 4 3 2 1
2 2 2 2 2 2 2
1 1 1 1 1 1 1
:
0 0 0 0 0 0 0
0 0 0 0 0 0 0
1 1 1 1 1 1 1
:
0 0 0 0 0 0 0
0 0 0 0 0 0 0
Analog voltage measurement
X2
M
S M – + S
6 5 4 3 2 1
Differential input
(common-mode
U
disturbances are
suppressed)
M = GND
Example circuits for DMP compact module 1I NC analog
8 DMP Compact Modules
IB m+1 Analog input voltage
4 3 2 1 0 Range +/– 10 V
0
2 0 0 0 PF
1 0 0 0 0
:
1 0 0 0 0
0 0 0 0 0
1 0 0 0 0
:
1 0 0 0 0
0 0 0 0 0
X2
S M –
6 5 4
U
9.995 V
:
0.005 V
0 V
–0.005 V
:
–9.995 V
–10 V
M
+ S
3 2 1
Unipolar
(default)
8-107