When connecting to high speed Profibus networks (1,5 Mbps and above), you should use an active cable (with builtin repeater)to avoid a short break of the communication at the moment you connect the PG on the network. You can use the "auto" version of the PG/PC setting to detect the speed. Also the speed of the PG should match with the bus. Could be a riskif you insert several PGs during commisioning. A PG must also insert itself asan additionalmaster on the bus (be surenot to use an adrress already allocated to aCPU). Pay attentionto this in time critical applications. The load added by the PG on a Profibus network will affect all network nodes by increasing the current rotation time. Siemens’ products and solutions only form one element of such a concept. In order to protect plants, systems, machines and networks against cyber threats, it is necessary to implement and continuously maintain a holistic, state-of-the-art industrial security concept. I both cases the CPU will be stopped during the write operation to flash support the secure operation of plants, systems, machines and networks. Here you have a menu PLC => Download User Program to memory card This manual provides a complete overview of programming with STEP 7. And no operation is required to save the program in the MMC Siemens products may only be used for the applications described in the catalog and. On older CPUs, you could plug a flash Eprom, and with the menu Point PLC=> Copy RAM to ROM, you could save the program into the plugged flash.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |