Siemens SIMATIC ET 200SP Manual page 12

Wiring up
3.1 Wiring and block diagram
Connection: Current measurement 4-wire connection
The following figure shows the block diagram and an example for the terminal assignment of
the analog input module AI 8xI 2-/4-wire BA on the BaseUnit BU type A0 with AUX terminals.
①
4-wire connection for current measurement
②
Connection AUX terminals to ground
③
Color identification labels CCxx (optional)
④
Filter connection supply voltage (only when light-colored BaseUnit is present)
I + Input signal, channel n
n
U Infeed voltage
V
L+ 24 V DC (infeed only with light-colored BaseUnit)
M Ground
1 A to 10 A AUX terminals
P1, P2, AUX Internal self-assembling voltage buses
Connection to left (dark-colored BaseUnit)
Connection to left interrupted (light-colored BaseUnit)
Figure 3-2 Wiring and block diagram for voltage measurement 4-wire connection
12
Analog input module AI 8xI 2-/4-wire BA (6ES7134-6GF00-0AA1)
Manual, 03/2015, A5E34941201-AA