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Siemens S7-300 manual What is a program?

Models: S7-300

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5.1 What is a program?

5.1 What is a program?

The program describes how the signals from the momentary contact switches are logically linked to the outputs. The outputs of the CPU 312C will be used to control the drive motor of the conveyor belt.

The program is part of the STEP 7 Lite project. Each program consists of organi- zation blocks (OBs). The program for the conveyor is stored in OB1.

The program consists of networks. The networks, in turn, consist of normally- closed and normally-open contacts and coils.

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SIMATIC S7-300 Getting Started for First Time Users Getting Started, 04/2007, 6ZB5310-0NC02-0BA0

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Siemens S7-300 manual What is a program?

Contents

04/2007 SIMATIC S7-300 Getting Started for First Time UsersOrder No. 6ZB5310-0NC02-0BA0 Safety Guidelines DangerQualified Personnel Prescribed Usage TrademarksDisclaimer of Liability Page 7 Congratulations Contents1 Welcome To accomplish this, you will perform the following tasks You will need a micro 1 WelcomeValidity PrerequisitesSiemens Materials and toolsOrder number QuantityQuantity 1 WelcomeIn addition, you will need the following components Order numberPage 2 Preparing the PC Installing STEP 7 Lite Installing the driver for the PC Adapter USBOpen the installation file and follow the instructions Setting the interface 1. Open the dialog for setting the PG/PC interface2 Preparing the PC Page 2 Preparing the PC Page 3 Installing and wiring the hardware 3.1 What components are required? 2. Connect the mounting rail to the ground wire 3.2 Installing the components3 Installing and wiring the hardware Installing and grounding the mounting railing the screws hand-tight Installing modules on the mounting rail1. Install the power supply, tighten 2. Install the CPU 312C2. Remove the insulation and press 3.3 Wiring the componentsPreparing the cables 1. Cut the cables to the desired3. Secure the power cable Wiring the CPU 312C and the power supply1. Prepare the power cable 2. Connect the power cable to the power supplyWiring the momentary contact switches 1. Connect the momentary contact switches to the digital inputs3 Installing and wiring the hardware 1. Connect the power supply for the digital inputs Wiring the motor3 Installing and wiring the hardware 2. Wire the motor, if available. This step is optionalConnecting the front panel connector Checking the line voltage setting 2. If necessary, change the switch position for the line voltage3 Installing and wiring the hardware Connecting the CPU 312C and the PC 3.4 Commissioning the hardware1. Connect the USB cable to the PC Adapter and your PC 3 Installing and wiring the hardware 2. Close the front panel1. Connect the supply cable to the supply system Supplying power to the CPU 312C3 Installing and wiring the hardware 3. Set the main switch of the power supply to “ON” 3 Installing and wiring the hardware Testing the connectionsPage 4 Configuring the control in STEP 7 Lite 4.1 What is a STEP 7 Lite project? 1. Start STEP 7 Lite 4 Configuring the control in STEP 7 Lite4.2 Opening a STEP 7 Lite project Opening the “conveyor” project4.3 Reproducing the module configuration in STEP 7 Lite Creating the module configuration1. Create a new S7-300 station 4 Configuring the control in STEP 7 Lite Page 4 Configuring the control in STEP 7 Lite 1. Set the amount of retentive bit memory to “0” Setting the parameters of the CPU 312CSaving the project 1. Save the project4 Configuring the control in STEP 7 Lite Establishing the online connection 4.4 Establishing the online connection between the PC and CPU 312C4 Configuring the control in STEP 7 Lite 4.5 Downloading and checking the module configuration to the CPU 312CPerforming a memory reset on the CPU 312C 1. Delete the old program blocks and configurations from the CPU 312CDownloading the module configuration to the CPU 312C 4 Configuring the control in STEP 7 Lite Checking the module configurationPage 5 Opening the program on the PC 5.1 What is a program? 5.2 Opening a program 5 Opening the program on the PC1. Open the program Page 6 Performing a test run 6.1 Downloading the project to the CPU 312C 1. Set the mode switch of the CPU 312C to “RUN” 6.2 Starting the test run6 Performing a test run 2. Press the green momentary con- tact switch to start the motor The output LED 0.3 goes out The motor is switched off6 Performing a test run The output LED 0.5 lights up. The input LED 0.3 lights upPage 7 Congratulations Want to know more about SIMATIC S7-300? Contact us 8 Additional information 8.1 Diagnostics / correction of errors 8 Additional information 8.2 Additional documentationDescription Name of manualService & Support on the Internet 8.3 SIMATIC Technical Support8 Additional information Page 8 Additional information