3/5/2010 6:56 PM | |
Posts: 1 Rating: (0) |
I would like to know the way to program my S7 200 - CPU224XP in the case I must store the phase in which my program was stopped |
12/28/2010 7:44 PM | |
Posts: 2930 Rating: (432)
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Hi, Some ideas: 1. Copy the neccessary data (states) to the first 13 Bytes of Merker and enable retentivity for this 13 byte. In case of power off the PLC will copy it to EEPROM. Change your program and copy the first 13 Merker bytes to the original addresses wenn power comes back. See SMB0 for more information. 2. Copy the neccessary data to v-memory. Then copa it to the ointernal EEPROM when data change. Use the LIB from www.s7-200.net. In case od power comes back copy from V-Memory to the original data back. Hope this helps |
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