Installing A New Module - Siemens S7-300 Installation Manual

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Install the new module as follows:
1. Install new module of same type.
2. Pivot the module down into place.
3. Screw-tighten the module.
4. Slide the labeling strips into the module.
Figure 10-3 Installing a new module

Lower module onto rail.

Tilt module down.

Screw the module in tightly.

Insert labeling strips.
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If you want to take a "used" front connector to wire another module, you can
remove its coding mechanism:
Simply push out the front connector coding with a screwdriver.
This upper part of the coding key must then be plugged back into the old module.
S7-300 Automation System, Hardware and Installation: CPU 312IFM - 318-2 DP
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