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sudden NON-WOKING on cpu226

9/14/2010 9:16 PM	Rate (0)
fabiantp Posts: 2 Rating: (0)	Hi, I´m using a CPU226, with EM223 and a TD200. The program is running, and suddenly it just stop working, disabling almost all of the outputs (all but one) and even the inputs (All the leds on both cpu266 and em223 turn off); I also lose the connection with the computer. I happened to me last week and I though It was something with the code and I just made a new program and I have the same problem. I had tested all the hardware by itself and it´s working fine, each of the 17 outputs and 12 inputs I´m using. Any idea?? thanks, I don´t know what else do...
fabiantp Posts: 2 Rating: (0)
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9/14/2010 10:42 PM	Rate (0)
umencho Diamond Member Joined: 3/21/2006 Last visit: 3/30/2025 Posts: 10239 Rating: (1183)	Hello, Perhaps this FAQ could helps - Is there a help tool in STEP 7-Micro/Win like the USTACK in STEP 7 for troubleshooting for STOP state of the S7-200 CPUs? What about retentive memory - How do you perform non-volatile saving of changed parameter data as variable ranges in the CPU's internal EEPROM memory? Do not store any data with high frequency in the EEPROM. Typically, only 100,000 memory accesses to an EEPROM are possible. If this value is exceeded, the CPU becomes defective. If you store values on the EEPROM by the hour, then the EEPROM has an expected service life of 11 to 12 years. Best regards, Hristo Mihalev

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