Siemens Simatic S7-1500 CPU 1512C-1 PN - Terminal and Block Diagram of the Analog On-Board I;O

Wiring
4.3 Terminal and block diagrams
CPU 1512C-1 PN (6ES7512-1CK01-0AB0)
Manual, 12/2017, A5E40898741-AA
81
4.3.2
Terminal and block diagram of the analog on-board I/O
This section contains the block diagram of the analog on-board I/O (X10) and various wiring
options.
For information on wiring the front connector, establishing the cable shield, etc., refer to the
S7-1500, ET 200MP (http://support.automation.siemens.com/WW/view/en/59191792)
system manual.
Note
You can use and combine the different wiring options for all channels. Note, however, that
unneeded terminals of
an analog input channel must not be connected.
Definition
U
n
+/U
n
-
Voltage input channel n (voltage only)
M
n
+/M
n
-
Measuring input channel n (only resistance
-type transmitters or thermal
resistors (RTD))
I
n
+/I
n
-
Current input channel n (current only)
I
c n
+/I
c n
-
Current output for RTD, channel n
QV
n
Voltage output channel
QI
n
Current output channel
M
ANA
Reference potential of the analog circuit
CHx
Channel or display of the channel status
Infeed element
The infeed element is inserted on the front connector and serves to shield the analog on-
board I/O.
Note
The analog on
-board I/O does not require power to be supplied by the infeed element. The
infeed element is, however, necessary for shielding.