User Manual

Lenze · Controller | Parameter setting & programming · Reference Manual · DMS 1.5 EN · 04/2014 · TD17 66
7 Programming with the »PLC Designer«
7.5 Creating remanent variables (retain/persistent)
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Re-using remanent variables after a device replacement
• A device replacement involves the insertion of the SD card of the replaced controller into the
new device.
• The boot application starts with the RETAIN values saved last by L_Util_Retain.
• When the PLC is started, the RETAIN file is created once. Set xStoreRetains to create the RETAIN
file once again.