Maintenance
S7-300 Programmable Controller Hardware and Installation
A5E00105492-01
9-7
Removing the front connector coding pin from the module
Before you start installation of the new module, remove the upper part of the front
connector coding pin from this module (see the figure below).
Reason: This part is already inserted in the wired front connector.
Figure 9-2 Removing the front connector coding pin
Installing a new module
Install the new module as follows:
1. Insert the new module of the same type and swing it down into place.
2. Screw-tighten the module.
3. Slip the labeling strip of the removed module into its guide on the new module.
2
1
3
0.8 to 1.1 Nm
1
Figure 9-3 Installing a new module
Removing the Front Connector Coding
If you want to take a "used" front connector to wire another module, you can
remove its coding mechanism:
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