Save The Block; Set The Operating Mode; Clear The C7 Cpu Memory / Reset The C7 Op - Siemens SIMATIC C7-621 Manual

Program development

Save the block

The mode section of the filling plant is now fully programmed. Now save function FC15 by activating
the symbol .
For an executable program you still need to call FC15 in organization block OB1. Open OB1 in the
SIMATIC Manager and insert the following program line in the first network:
OB1 : Filling plant
Network 1 : Mode section
CALL FC 15
Now save organization block OB1 and close the LAD/STL/FBD Editor.

Set the operating mode

S H IF T
Now press the
Select the C7 CPU mode menu "KEY" by pressing
Select the STOP mode by pressing
If you have not yet entered a password, you are now prompted to do so. Password 100 is the default
setting when the C7 is delivered. Enter the digits 100 on the numeric keypad and press ENTER .
Now, select STOP mode again.

Clear the C7 CPU memory / reset the C7 OP

Before you load a project into the CPU for the first time, you need to establish a neutral state on the
C7-621. This is achieved by deleting both of the integrated C7 flash memories and then restarting the
C7-621. Proceed as follows to delete the C7 flash memory:
Delete C7 CPU memory:
In the SIMATIC Manager select the Accessible Nodes
appears, double-click the folders MPI=2 and Blocks to open them .
Select all OBs, FBs, FCs and DBs. Delete the selected objects from the C7 CPU. The load memory
of the C7 CPU is then cleared.
Select the folder MPI=2 and copy the contents of the load memory into the C7 CPU flash memory by
activating PLC → Copy RAM to ROM. This action clears the integrated CPU flash memory.
Close the Accessible Nodes window .
18
0
keys on the C7-621 to select the system function menu.
F3
. The STOP LED lights up.
F1
.
symbol. In the dialog window that
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First Steps with the C7-621
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