Ashu@automation

                                                    Simatic S7-1500 PLC   Overview Modular, scalable, and universally usable system in IP20 level of protection The system solution for a variety of automation applications in discrete automation Highest performance with excellent usability Configurable exclusively in the Totally Integrated Automation Portal with STEP 7 Professional V12 Performance Performance increase through Faster command execution Language extensions New data types Faster backplane bus Optimized code generation Powerful communication: PROFINET IO (2-port switch) as standard interface Optional additional PROFINET interface, e.g. for network separation Expandabl...

what are the various possible way of communication with OP27. how to check transfer setting as unable to enter transfer settings??   1. Power OFF. 2. Keep pressed ESC+Aroow UP 3. Power ON. 4. System switches to Download Mode. (you will see a message). 5. Release the buttons. ************************************************************************************ I am using   Siemens PLC (S7-200 CPU  .Micro Win V4.0  SP 8, and for communication  am using ppi adapter.the plc can not communicate with the computer .it gives me   "The port cannot be opened, or  is being used by by another application. Shutdown all applicatons, look in your startup folder for applications that might use the same (pc) port. Restart PC. Start microwin and select right pc/pg interface. Put CPU in stop mode and try again.