Wiring; Pin Assignment And Block Diagram - Siemens SIMATIC S7-1500/ET 200МР Manual

Wiring

3.1

Pin assignment and block diagram

You connect the encoder signals, the digital input and output signals and the encoder
supplies to the 40-pin front connector of the technology module. In addition, you connect
the supply voltage for supplying the module and digital outputs and for producing the
encoder supply voltages to the 4-pin power supply element.
You can find the pin assignment of the front connector and the power supply element in the
following two sections.
You can find information on wiring the front connector, shielding the cable, etc., in system
manual S7-1500 / ET 200MP Automation System
(http://support.automation.siemens.com/WW/view/en/59191792), section Wiring.
Pin assignment for the power supply element
The power supply element is plugged onto the front connector and serves to supply the
technology module. For this, you must connect the supply voltage to terminal 41 (L+) and
terminal 44 (M). Use terminal 42 (L+) and terminal 43 (M) to loop the supply voltage through
to the next module.
Figure 3-1
L+
M
An internal protective circuit protects the technology module from polarity reversal of the
supply voltage. The technology module monitors the connection of the supply voltage.
Encoder supply
For supplying the encoders and sensors connected to the digital inputs, the technology
module provides a 24 V DC supply voltage at output 24VDC (terminal 9) with reference to M
(terminal 10). The voltage is monitored for short-circuit and overload.
Technology module TM Count 2x24V (6ES7550-1AA01-0AB0)
Equipment Manual, 12/2020, A5E31870371-AC
Connection of power supply element
Supply voltage 24 V DC
Ground for supply voltage
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