Siemens SIMATIC ET 200SP Manual page 34

Connection: 3-wire connection of actuators
The figure below shows an example for the terminal assignment of the digital output module
DQ 4×24VDC/2A HS on the BaseUnit BU type A0 with AUX terminals (3-wire connection).
①
3-wire connection
②
Color-coded labels CCxx (optional)
③
Supply voltage filter circuit (only when light
BaseUnit is present)
DQ + Output signal oversampling, channel n
n
DQ - Reference output signal, channel n
n
Figure 4-2 Terminal assignment for 3-wire connection of actuators
Digital output module DQ 4x24VDC/2A HS (6ES7132-6BD20-0DA0)
Manual, 06/2018, A5E32855695-AC
1 A ... 10 A AUX terminals
PE (AUX) Protective conductor connection
24 V DC Supply voltage L+ (infeed for light BaseUnit
only)
M Ground
P1, P2, AUX Internal self-configuring voltage buses
Connection to left (dark BaseUnit)
Connection to left interrupted (light BaseUnit)
Oversampling operating mode
4.1 Connecting
33