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Configuring Hardware and Communication Connections STEP 7.pdf

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<strong>Configuring</strong> Central Racks<br />

2.2.4 Special Rules for PROFIBUS-DP Interface Submodules (M7-400)<br />

If you wish to use an interface submodule for PROFIBUS-DP in an M7-400<br />

programmable controller (for example, IF 964-DP as DP master), then you should<br />

note the following:<br />

• No other interface submodule can be inserted in the CPU, FM, or EXM under<br />

this interface submodule.<br />

• An interface of the CPU, FM, or EXM that is below this interface submodule<br />

cannot be used.<br />

Reason: The PROFIBUS bus connector covers the module slot or interface below.<br />

Recommendation: Insert an interface submodule for PROFIBUS-DP only in the<br />

lowest or in the lower left module slot of a CPU, FM, or EXM.<br />

<strong>Configuring</strong> <strong>Hardware</strong> <strong>and</strong> <strong>Communication</strong> <strong>Connections</strong> with <strong>STEP</strong> 7<br />

2-6 A5E00706939-01

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