The attached download shows the S7-300 CPUs and the SIMATIC memory cards to be used with them.
Here we distinguish between the memory card types below:
- MC (Memory Card)
You can use an MC with older S7-300 CPUs with MC Slot.
Dimensions: 57mm x 45mm x 7mm
- MMC (Micro Memory Card)
An MMC is imperative for operating all current S7-300 CPUs.
Dimensions: 32mm x 24 mm x 1mm
Fig. 01 MC on left and MMC on right
S7-300_Memorycard.pdf ( 76 KB )