Siemens SIMATIC ET 200SP Manual - Page 12

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Siemens SIMATIC ET 200SP Manual
Wiring
3.1 Wiring and block diagram
Wiring: Current output 2-wire connection
The following figure shows the block diagram and an example of the terminal assignment of
the analog output module AQ 2xI ST on the BaseUnit BU type A0/A1.
2-wire connection for current output
Backplane bus interface
Microcontroller
Digital-to-analog converter (DAC)
Output conditioner
Color-coded label with color code CC00 (optional)
Temperature recording for BU type A1 only (function
cannot be used for this module)
Filter connection supply voltage (only when light-
colored BaseUnit is present)
Image 3-1
Wiring and block diagram for current output 2-wire connection
12
Q
+
Analog output current positive, channel n
n
Q
-
Analog output current negative, channel n
n
RES
Reserve, must remain unused for future
function extensions
L+
24 V DC (infeed only with light-colored Ba-
seUnit)
M
Ground
P1, P2, AUX
Internal self-assembling voltage buses
Connection to left (dark-colored BaseUnit)
Connection to left interrupted (light-colored
BaseUnit)
DIAG
Diagnostics LED (green, red)
AQ0, AQ1
Channel status LED (green)
PWR
Power LED (green)
Analog output module AQ 2xI ST (6ES7135-6GB00-0BA1)
Manual, 12/2015, A5E36104864-AA