DP master configuration in PLC

Learn how to configure profinet I/O system in PLC using Simatic manager.




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DP master system configuration in PLC

Configuring a PROFIBUS DP Master System in Siemens SIMATIC Manager

This guide outlines the steps to configure a PROFIBUS DP (Decentralized Peripherals) master system using Siemens SIMATIC Manager software. We will set up a PLC as the DP master and an IM module as a DP slave for communication.

Understanding the PROFIBUS DP Master System

A PROFIBUS DP master system is the central control unit responsible for managing communication with connected DP slave devices on a PROFIBUS network. It orchestrates data exchange, ensuring efficient and reliable communication between the PLC (master) and various I/O modules or field devices (slaves).

For this example, we will use a Siemens S7-300 PLC (specifically CPU 315-2 PN/DP) as the DP master and an IM 153-1 module as a DP slave device.

Configuration Steps in SIMATIC Manager:

1. Configure the DP Master PLC:

   • First, open SIMATIC Manager and navigate to the hardware configuration.

   • From the hardware catalog, select and insert the CPU 315-2 PN/DP (or your chosen S7-300 CPU) into your project. This CPU will serve as our DP master system.

   • Once the CPU is added, the PROFIBUS DP master system line will be automatically created and associated with the CPU's integrated DP interface.

2. Modify DP Master System Properties (Optional):

   • Click on the automatically generated DP master bus line in the hardware configuration.

   • In the properties window (typically at the bottom of the screen), you can modify various parameters of the DP master system, such as the PROFIBUS address, baud rate, and diagnostic settings, as per your project requirements.

3. Add DP Slave Modules:

   • Right-click on the DP master line (the green PROFIBUS line) and select "Insert New Object" or drag and drop from the hardware catalog.

   • From the hardware catalog, navigate to the PROFIBUS DP > DP Slaves section.

   • Select and insert your desired DP slave device. For this example, choose an IM 153-1 module.

   • The IM module will appear connected to the DP master bus.

4. Configure DP Slave Properties:

   • Double-click on the inserted IM 153-1 module to open its properties dialog.

   • Here, you can configure specific settings for the IM module, such as its PROFIBUS address, diagnostic behavior, and the I/O modules that will be connected to it. Configure these parameters according to your application's needs.

5. Adding Multiple DP Slaves (If Required):

   • If your system requires more IM modules or other DP slave devices, simply repeat step 3 and 4 for each additional slave. All added slaves will appear on the same DP master bus.

6. Understand I/O Module Slot Numbering:

   • For IM modules (like IM 153-1), the slot numbering for actual I/O modules connected to it will typically start from slot 4. This is because the initial slots (0-3) are reserved for internal communication or specific functions of the IM module itself, consistent with the S7-300 system's addressing scheme.

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Rack 0:

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• Slot 2: CPU only (for example, 6ES7 314-...)
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• Slots 4 through 11: Signal or function modules, communications processors, or free.

Racks 1 to 3:

• Slot 1: Power supply module only (for example, 6ES7 307-...) or empty
• Slot 2: Free
• Slot 3: Interface module
• Slots 4 through 11: Signal or function modules, communications processors (dependent on the inserted interface module), or free.

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Problem Description:-

Explain Portal view in TIA portal software.

Diagram:-

Description:-

The TIA portal can manage all data in the project in single platform. There are two views in the software which can be change any time.

Two views of the TIA portal are 1) Portal view and 2) Project view.

Portal view:-

Task oriented and fast project starting facilities.

Project view:-

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Open project

Change the view of the software.

Note:-All explanation, representation are for learning purpose.