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saia-pcd.com
PCD1.M2xxx
PCD3.Mxx6x
PCD7.D4xxVT5F
PCD2.M5xxx
PCD3.M3xxx
PCD3.M554x
PCD3.Compact
PCD3.WAC
Automation stations – the basics
Automation devices with integrated uSD card
The automation devices Saia PCD3 Plus, Saia PCD1.M2 and the programmable panel are provided with an on-board uSD flash
card. When loading a user application with Saia PG5®, all the necessary files in the internal flash memory are stored on the uSD
card. If the operating voltage is connected to the automation device and there is no executable program in the user memory,
COSinus attempts to load a valid program from the uSD card on startup.
Memory management of the Saia PCD® systems with COSinus operating system
Automation devices without integrated on-board flash
In the case of automation devices without an integrated uSD card that are fitted with the COSinus system, the user application
is copied directly to the user memory from Saia PG5®. If when the controller is started up no valid program is detected in the
user program, a search is run for a backup program in the on-board flash or an optional memory module.
Saia PCD2.M554x
Saia PCD3.Mxx4x
Saia PCD3.M3xxx
Saia PCD3.Compact
Saia PCD3.Wide Area Controller
S
Loading of the user program from Saia PG5® onto Saia PCD® automation devices and division of different data between the storage
media.
DRAM
SRAM Media (R, T, F)
File system
Configuration
SRAM data
User program
RIO application
load if necessary
User memory
microSD flashcard
DRAM
RAM TEXT/DB
RAM TEXT/DB
SRAM
SRAM
User program
ROM TEXT/DB
User program
ROM TEXT/DB
Media (R, T, F)
Media (R, T, F)
Onboard flash
User memory
File system
Saia PCD1.M2xxx
Saia PCD3.Mxx6x
Saia PCD7.D4xxVT5F
save
if necessary
