s 7 200 and proface HMI v memory lost

[gaannesh]

Member Join Date: Jan 2007Local Time is: 04:08 PM Location: shjPosts: 0 s7 200 hello i have form fill packing machine with the s7 224 plc and proface HMI. all the time parameters are set in the HMI according to the packaging size So far from the beginning when we stop the machine for a week all the timer values in the hmi becomes 0000. all timer values are stored in v memory . how to prevent this problem of not losing the v memory data. because everytime we restart the machine i have to re enter all the values again, almost 25 time values.

[Moggie]

Install a battery module, the CPU has only a limited back up time without the battery!