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Can a Twido TWDLCAA40DRF controller have a Memory cartridge and a Real Time Clock chip (RTC) installed?

Yes. The Twido TWDLCAA40DRF has a "built-in" RTC chip so you do not need to add the chip. As for the memory chip, this would only be needed if you want to save the program to it and it would not remain in the controller. It also has an option to add an external battery to hold the program when it is powered down.


Note: The Twido Line is obsolete as of 12/31/2015 and has been replaced by the M221 family, for more information on this contact your local distributor or Schneider Electric Sales office. 
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