Siemens S7-300 - Removing the Front Connector Coding Pin

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S7-300 Automation System, Hardware and Installation: CPU 312IFM - 318-2 DP
10-6 A5E00203919-01
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Before you start installing the new module, remove the upper part of the front
connector coding pin from this module.
Reason: This part is already inserted in the wired front connector.
Figure 10-2 Removing the front connector coding pin