Siemens SIMATIC ET 200SP Manual page 14

Wiring
3.1 Wiring and block diagram
Connection: 2-wire connection of actuators
The following figure shows the block diagram and an example of the terminal assignment of
the digital output module RQ 4x24VUC/2A CO ST on the BaseUnit BU type A0.
①
2-wire connection
②
Backplane bus interface
③
Polarity reversal protection
④
Color identification label CCxx (optional)
⑤
Filter connection supply voltage (only when light-
colored BaseUnit is present)
P1, P2, AUX Internal self-assembling voltage buses
Connection to left (dark-colored BaseUnit)
.0, .1, .2, .3 Channel status LED (green)
Figure 3-1 Wiring and block diagram for 2-wire connection of actuators
14
11.n Common contact
12.n Normally closed contact
14.n Normally open contact
n Channel
DIAG Diagnostics LED (green, red)
L+ 24 V DC (infeed only with light-colored
BaseUnit)
PWR Power LED (green)
M Ground
Digital output module RQ 4x24VUC/2A CO ST (6ES7132-6GD51-0BA0)
Manual, 09/2017, A5E32855952-AB