Siemens SIMATIC S7-1500 Manual page 20

Connecting
3.1 Pin assignment
Circuit diagram
The figure below shows an example circuit diagram of the technology module. In this
example, four channels are used with the RS422, 5 V-TTL and 24 V signal interfaces:
①
Electrical isolation
②
Technology and backplane bus interface
③
Input filter for supply voltage
④
Supply voltage via infeed element
⑤
Duplicate wiring to the ground connection of the central power supply of the system
⑥
Shield connection at the front connector
⑦
Equipotential bonding
⑧
LEDs per channel
⑨
Twisted-pair cables
⑩
Motor with drive stage at RS422 signal interface
⑪ ⑬
, Motor with drive stage at 24 V signal interface
⑫
Motor with drive stage at TTL signal interface
Figure 3-2 Circuit diagram when using RS422, 5 V-TTL and 24 V signal interfaces
20
Technology Module TM PTO 4 (6ES7553-1AA00-0AB0)
Manual, 12/2016, A5E38896703-AA