S7 1200 CPU FW3

Delivered S7-1200 CPUs with firmware version 2.2 or lower cannot be upgraded to firmware 3.0.
New HW is delivered with FW3.0, and that version is not available for download.

Use the memory card either as a transfer card or as a program card. Any program that you copy to the memory card contains all of the code blocks and data blocks, any technology objects, and the device configuration. A copied program does not contain force values.

● Use a transfer card (Page 110) to copy a program to the internal load memory of the CPU without using STEP 7. After you insert the transfer card, the CPU first erases the user program and any force values from the internal load memory, and then copies the program from the transfer card to the internal load memory. When the transfer process is complete, you must remove the transfer card.

You can use an empty transfer card to access a password-protected CPU when the password has been lost or forgotten (Page 118). Inserting the empty transfer card deletes the password-protected program in the internal load memory of the CPU. You can then download a new program to the CPU.

● Use a program card (Page 112) as external load memory for the CPU. Inserting a program card in the CPU erases all of the CPU internal load memory (the user program and any force values). The CPU then executes the program in external load memory (the program card). Downloading to a CPU that has a program card updates only the external load memory (the program card).

Because the internal load memory of the CPU was erased when you inserted the program card, the program card must remain in the CPU. If you remove the program card, the CPU goes to STOP mode. (The error LED flashes to indicate that program card has been removed.)