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Functions for SIMATIC S7-300 and S7-400 Acyclic ... - Jonweb FA

Functions for SIMATIC S7-300 and S7-400 Acyclic ... - Jonweb FA

Functions for SIMATIC S7-300 and S7-400 Acyclic ... - Jonweb FA

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User Manual2 Configuration of communicationBe<strong>for</strong>e starting up PROFIBUS-DPV1 communication, it is necessary to work through the following configurationsteps:• Define hardware configuration, parameterize DP master <strong>and</strong> slaves (STEP 7 hardware configuration)• Parameterize communication software "DPV1"− Generate <strong>and</strong> pre-assign data block "slave"− Write the communication program• Parameterize the drives2.1 Parameterization of the DP interfaceThe DP interface is parameterized as part of the hardware configuration in STEP7. Be<strong>for</strong>e configuring thehardware you must install the DVA_<strong>S7</strong> object manager <strong>for</strong> drives as an add-on to STEP 7. Otherwise DPV1communication is not possible!When you select a CPU with integrated DP interface from the hardware catalog of STEP 7, a PROFIBUS-DPsystem is provided in the hardware configuration. Once the parameters of the master (eg, baud rate) havebeen set, the slaves must be selected from the hardware catalog <strong>and</strong> placed in the PROFIBUS line.Only the station number has to be parameterized <strong>for</strong> the slaves. It does not matter which PPO type is used <strong>for</strong>DPV1 communication.<strong>SIMATIC</strong> <strong>S7</strong> PROFIBUS-DP <strong>Functions</strong>© Siemens AG 1998 All Rights ReservedE20125-C0011-S302-A2-7600 3

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