If the CPU is in Run mode then you will be prompted to Stop the CPU.
If you do download the system data, the following messages will prompt you through the transitions. This is usually not necessary in a PLC that has all ready had its hardware configured. 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 may mean that an error will occur if a block is called before it is downloaded. Be careful though as the order of download will occur in the order that the blocks were selected. Holding down the Ctrl key or the Shift key allows more then one block to be selected at a time.
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. Partial downloads are used in existing projects where only one or more blocks will be downloaded.
With the CP5512 and PC Adapter cables, you should use the MPI port, as this is the default connection for Siemens. If not double-check the connection and cable. 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. Also, check under the Local Connection tab and make sure connection selection matches the port the cable is connected into.
It should not conflict with existing PLC and slave devices on the network. This will discover working settings and use them automatically.įor the PC Adapter click on the Properties button and make sure the Station Parameters Address is a unique network address. To get it working quickly it is best to select the interface with the Auto designation. Be careful not to select your wireless Ethernet connection. For Ethernet select the TCP/IP interface for your computers network card. communication drivers).Įach cable has its own interface. The following dialog box will open up displaying all the different interfaces (i.e. To do this, select the menu Options > Set 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. This indicates that the cable is not in the right computer port or the cable is not plugged in properly. If communication fails then you will receive a message like below. If so, then close the Accessible Nodes window and proceed to the download or upload section. If communications are successful, you'll see a window pop up similar to the one below.
With the programming cable plugged in, you can check for proper operation by clicking on the Accessible Nodes icon. The CP5512 card draws its power from the computer.įor 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. Be aware that the PC Adapter draws its power to work from the connection port so check the power LED for proper operation. These cables can piggyback on existing connectors. Note that PROFIBUS is labeled as DP on the Siemens connection ports. The CP5512 card and the PC Adapter can communicate on either an MPI or PROFIBUS port.
The PC Adapter using a serial or USB connection There are three major types of programming cables:Ģ. Connecting to the S7 PLC The Programming Cables