Drivers I-view Communication

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These are general guidelines for connecting, downloading and uploading from an S7-300 or S7-400 PLC. The following procedures were created using Siemens SIMATIC STEP 7 version 5.4 software.

To start, open the SIMATIC Manager.

Now follow the links below.

The Programming Cables

There are three major types of programming cables:

1. The CP5512 card in a PCMCIA slot.

2. The PC Adapter using a serial or USB connection

3. An Ethernet cable

The CP5512 card and the PC Adapter can communicate on either an MPI or PROFIBUS port. Note that PROFIBUS is labeled as DP on the Siemens connection ports. These cables can piggyback on existing connectors. Be aware that the PC Adapter draws its power to work from the connection port so check the power LED for proper operation. The CP5512 card draws its power from the computer.

For Ethernet (TCP/IP) use a standard Ethernet cable from the computer to a CPU with an Ethernet port, a CP 343/443 module or a network switch all ready attached to the PLC network.

Checking Communications

With the programming cable plugged in, you can check for proper operation by clicking on the Accessible Nodes icon.

If communications are successful, you'll see a window pop up similar to the one below. If so, then close the Accessible Nodes window and proceed to the download or upload section.

If communication fails then you will receive a message like below.

This indicates that the cable is not in the right computer port or the cable is not plugged in properly.

Setting the PG/PC Interface

In order to start communication to the PLC you will need to match the 'PG Interface' setting with the programming cable and protocol. To do this, select the menu Options > Set PG/PC Interface.

The following dialog box will open up displaying all the different interfaces (i.e. communication drivers).

Each cable has its own interface. For Ethernet select the TCP/IP interface for your computers network card. Be careful not to select your wireless Ethernet connection.

To get it working quickly it is best to select the interface with the Auto designation. This will discover working settings and use them automatically.

For the PC Adapter click on the Properties button and make sure the Station Parameters Address is a unique network address. It should not conflict with existing PLC and slave devices on the network. Also, check under the Local Connection tab and make sure connection selection matches the port the cable is connected into.

Once the proper interface is selected and the properties are set then click OK and use the Accessible Nodes window to check for successful communications. It should work. If not double-check the connection and cable. With the CP5512 and PC Adapter cables, you should use the MPI port, as this is the default connection for Siemens.

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First, in order to enable the download menu commands, you must select the Block folder in the project's station you wish to download.

There are three methods of downloading.

  1. Partial download of selected blocks
  2. Full download of all blocks and system data
  3. Complete deletion of online PLC blocks and then downloading of all blocks and system data

Partial Download

Partial downloads are used in existing projects where only one or more blocks will be downloaded. To perform this type of download select the block(s) you wish to download and then select the PLC > Download menu item or the download button .

Holding down the Ctrl key or the Shift key allows more then one block to be selected at a time. Be careful though as the order of download will occur in the order that the blocks were selected. This may mean that an error will occur if a block is called before it is downloaded.

The CPU will need to be in Stop mode before downloading the System Data Block (SDB) as this is equivalent to a hardware configuration download. This is usually not necessary in a PLC that has all ready had its hardware configured. If you do download the system data, the following messages will prompt you through the transitions.

If the CPU is in Run mode then you will be prompted to Stop the CPU. The software will do the Run to Stop transition when you click OK.

After downloading the SDB you will be prompted to Run the CPU again.

Clicking Yes will automatically put the CPU back into run mode.

Full Download

To download all the blocks at once make sure you are in the Block folder and select the Edit > Select All menu item. Click on the Download icon . You will be prompted to overwrite any existing blocks and if you want to load the system data (see above).

Clearing the CPU Memory and then Downloading

The partial and full download methods above will overwrite existing blocks but will not any blocks from memory. In order to completely delete the existing program in the CPU and download a new project select the Blocks folder and then use the PLC > Download User Program to Memory Card menu item.

The following dialog box will pop up prompting you about the deletion of all the blocks and project data in the PLC. Click Yes to perform the operation.

After this, follow the normal download procedure.

There are two methods for uploading. The first is when you have the original project and you want to preserve the symbols and comments. The second method, when you don't have the original project, will upload everything from the CPU but will have no associated documentation (i.e. symbols and comments).

Uploading to an Existing Project

With the existing project open, select the View > Online menu item.

This is the same as the Online button on the icon bar.

This will open up another window called the Online Partner. It shows the existing blocks inside the CPU. The Online version is indicated by the highlighted title bar.

There is a connection between these two versions so that uploading from the online partner makes sure to preserve all the symbols and comments. Be careful. After uploading, make sure to close the online partner and do all work from the offline version.

To upload individual blocks, select them in the Online view and choose the PLC > Upload to PG menu item. For a full upload, select the Block folder and do the same.

I-view

Upload without an Existing Project

Follow these steps when you do not have the original project but wish to upload the program for backup purposes. With an existing project open or a new blank project select the PLC > Upload Station to PG… menu selection.

In the next screen, fill in the slot the CPU is in (this is always 2 for S7-300) and the node address of the communication port on the CPU. In the case below we are talking to a CPU over MPI with node address 10.

After clicking OK, the whole contents of the PLC including all blocks and hardware configuration will be uploaded into a new station in the project.

While this project contains no documentation, it can be used as a backup to download later if needed.

In case a particular USB Port or all the USB Ports on your computer are not working, you should be able to fix the problem by using any of the methods as provided below to fix the issue of USB Ports not working in Windows 10.

USB Ports Not Working in Windows 10

The USB ports on a Windows 10 computer can stop working and become unresponsive due to device drivers getting corrupted, power supply to USB ports being cutoff and other reasons.

Luckily, many users have reported fixing the problem of USB Ports not working in Windows 10 using the following methods.

  1. Power OFF/Start Computer Again
  2. Reinstall Faulty Device Drivers
  3. Disable Fast Startup
  4. Change Power Management Settings
  5. Disable USB Selective Suspend Setting
  6. Check For Updates

Before going ahead with these methods, make sure that the problem is with the USB Port and not with the USB device that you are trying to connect to the computer.

To check, plug in another device into the USB port of your computer and see if it is working. If the new device is also not working, it confirms that the USB Port is not working.

1. Power Off Computer and Start Again

Sometimes the problem of USB Ports not working in Windows 10 can be fixed by the simple act of shutting down your computer and starting it back again.

Simply, power OFF your computer and also unplug the computer from its power source. After waiting for 2 minutes, connect the computer back to its power source and Power it on.

2. Reinstall Faulty Device Drivers

The problem of USB Ports not working in Windows 10 could be due to the drivers for USB Ports getting corrupted.

This issue can be fixed by uninstalling all the Faulty device drivers and allowing Windows to automatically reinstall the drivers back on your computer.

1. Right-click on the Start button and then click on Device Manager.

2. On the Device Manager screen, right-click on the USB Controllers with an exclamation mark and click on Uninstall in the contextual menu.

4. Repeat the above steps for other USB Controllers with exclamation marks.

5.Restart your computer.

Once your computer restarts, Windows should automatically load the right drivers as required for USB Ports on your computer.

3. Disable Fast Startup

The Fast Startup option as available in Windows 10 can sometimes lead to Windows skipping USB Ports during the start up process.

1. Open the Control Panel on your computer.

2. On the Control Panel Screen, click on Hardware and Sound > Change What Power Buttons Do link.

3. On the next screen, scroll down to “Shutdown Settings” and uncheck Turn on fast startup option.

With Fast Startup disabled you will find your computer booting up a bit slower, but you may not even notice the difference.

4. Change Power Management Setting For USB Root Hub

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The default tendency of Windows computer to turn-off power supply to unused USB ports and external device can cause the problem of USB Ports not working in Windows 10.

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1. Right-Click on Start button and then click on Device Manager option.

2. On the device Manager Screen, right-click on USB Root Hub and click on Properties.

3. On the Properties screen, click on Power Management tab and uncheck the option for “Allow the computer to turn off this device to save power” and click on OK.

In case you have more USB Root Hubs, you will need to repeat the above steps for them as well.

5. Disable USB Selective Suspend Setting

In case all the USB Ports are not working on your computer, you can disable Selective Suspend Power Setting for all the USB Ports on your computer. Drivers hercules input devices.

1. Open Control Panel on your computer.

2. On the Control Panel Screen, make sure that you are in “Category” view and click on System and Security.

3. On the System and Security Screen, click on Power Options.

4. On Power Options screen, click on Change Plan Settings link located next to the current Power Plan.

5. Next, click on Change Advanced Power Settings link.

6. On the next screen, click on USB Settings > USB selective suspend setting and select disabled option for “Plugged In” and also for “On Battery” in case you are using a Laptop.

7. Click on OK to save above settings.

6. Check For Updates

See if an Update is available for your computer. If an update is available, Windows will also install the latest available drivers for USB Ports on your computer.

1. Click on the Start button > Settings Icon > Updates & Security.

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2. On the Update and Security screen, click on Windows Update in the side menu and click on Check For Updates button.

3. Allow Windows to check for available updates and install them onto your computer

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In case updates are available, the latest available device drivers will also be installed on your computer.