Siemens SIMATIC S7-1200 - Page 72

Installation
4.3 Installation and removal procedures
S7-1200 Programmable controller
72 System Manual, V4.2, 09/2016, A5E02486680-AK
Note
Before connecting a TS module and TS adapter basic unit, ensure that the contact pins ④
are not bent.
When connecting, ensure that the mal
e connector and guide pins are positioned correctly.
Only connect a TS
module into the TS adapter. Do not force a connection of the TS adapter
to a different device, such as an S7
-1200 CPU. Do not change the mechanical construction
of the connector, and do
not remove or damage the guide pins.