Siemens SIMATIC ET 200SP Manual page 16

Connection
Pin assignment
Pin assignment for 2x BU type A0, dark-dark version, without AUX terminals
Terminal
1 to 16
(exist 2x)
(AUX)
L+ / M
(exist 2x)
Block diagram
①
Backplane bus
②
I/O module
③
Terminals with connection to the I/O module
④
System-integrated, self-assembling voltage buses P1, P2 with connection to the supply terminals, connected to the
adjacent module on the left
⑤
System-integrated, self-assembling AUX voltage bus without connection to the AUX terminals, connected to the
adjacent module on the left
Figure 2 Block diagram for 2x BU type A0, dark-dark version, without AUX terminals
Product Information on 2x BaseUnit
A5E45575771-AA, 08/2018
Assignment is determined by the I/O module. You can find additional information in the I/O
module (http://support.automation.siemens.com/WW/view/en/55679691/133300) manual.
No access to the AUX busbar via terminals
L+: Rated supply voltage 24 V DC with max. 10 A
M: Ground
Descriptions
17