Wiring   
3.1 Terminal assignment and power supply 
  Technology module TM ECC 2xPWM ST (6FE1242-6TM10-0BB1) 
20  Manual, 04/2018, A5E42681298B-AA 
Contactor switching contact DQ0 and DQ1 
●  There is no galvanic isolation between the digital outputs from each other or from the 
digital inputs. However, galvanic isolation exists between the digital outputs and the ET 
200SP system bus. 
●  The digital outputs are protected against overload and short-circuit. 
●  For their own protection, the digital outputs are equipped with protective diodes. 
 
Note 
Connect an external protection element to the relays or contactors to suppress self
-
inductance when switching off inductive loads.
 
using contactors with integrated protection elements. 
You must supply the contactors with a voltage source with limited voltage and/or power 
rating (SELV, PELV according to EN61010-1 and EN61010-2-201, Class 2).  
Read-back input for the contactor or the connector locking DI0 and DI1 
Galvanic isolation does not exist between the digital inputs nor between the digital inputs and 
the digital outputs. Galvanic isolation does, however, exist between the digital inputs and the 
ET 200SP system bus. 
You can configure these inputs in 24 V or 12 V logic. In the 24 V configuration, the low level 
is defined from 0 V to 5 V and the high level from 11 V to 24 V. In the 12 V configuration, the 
low level is defined from 0 V to 2.5 V and the high level from 5.5 V to 12 V. 
You can configure the read-back input via the TIA Portal. 
Control Pilot CP0 and CP1 
The SIMATIC ET 200SP TM ECC 2xPWM ST technology module can operate two 
conductive charging outlets in accordance with the standard IEC61851-1. The device forms 
a Control Pilot signal for every charging outlet. This signal is a square signal with 1 kHz 
frequency and an amplitude of +/-12 V. The duty ratio of the Control Pilot signal indicates the 
current which the charging station can deliver as charging current: