SBC PCD1 Series - Page 53

Saia-Burgess Controls AG
Manual Manual PCD 1 / PCD 2 Series │ Document 26 / 737 EN22 │ 2013-11-26
CPUs and expansion housings
3-36
Expansion of user memory
3
ExtensionmemoryisconguredandisusedtoholdRAMtextsandRAMDBs.
Step1:Hardwareconguration
Inthisexample,only112KbytesofFlashEPROMareavailableascode/textmemory
(ontheplug-inchip);oneblockofmemoryislosttocongurationdata(header),
because Flash EPROM can only be accessed in block mode.
For a PCD2.M110/M120 with hardware version < J, only 24 Kbytes of extension
memory(onboardmemory)canbecongured;previously,lessbasememorywas
provided with these CPU types.
Step2:Downloadingthehardwareconguration
Step 3: Modifying system settings