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How to back up the PLC data registers

ID:
269
Issued:
Dec 28th, 2009
Updated:
May 17th, 2013

When rewriting the program, all data in the data area are reset to zero. Therefore, I tried to hold the data by using "Hold PLC Device Value" function of GT10. However, the data still became zero. How can I successfully hold the data?

ANSWER
First of all, "Hold PLC Device Value" function of GT10 is intended to hold data in case of a power failure, and cannot be used for holding the data area. If you need to save the data in a specific area, use "Data Editor", which is software supplied with FPWIN GR. Go to Start of Windows > All Programs > Panasonic MEW Control > FPWIN GR2, and activate "Data Editor". With this software, you can easily read, save, and write any data area of PLC, including an IC card.
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