Instructions:
In the case of CPU modules that have a built-in EPROM, you can copy the contents of the load memory to the built-in EPROM so as not to lose data in the case of power failure without battery or overall reset.
Use the following procedure:
- Set the CPU to operating mode STOP.
- Use the menu command "View > Online" to open a window with an Online view of an opened project
or
call up the "Accessible Nodes" window by clicking on the "Accessible Nodes" button on the function toolbar or by selecting the menu command "PLC > Display accessible nodes".
- Select the S7 or M7 program in the Online view of the project window or the node in the "Accessible nodes" window.
- Select the menu command "PLC > Copy RAM to ROM".
- The contents of the RAM memory are copied into the built-in EPROM.
Valid for:
| CPU type |
As from order no. |
| CPU 312 IFM |
6ES7 312-5ACxx-0AB0 |
| CPU 314 IFM |
6ES7 314-5AExx-0AB0 |
| C7-621 |
6ES7 621-1AD0x-0AE3 |
| C7-621 ASI |
6ES7 621-6BD0x-0AE3 |
| C7-623/P |
6ES7 623-1DE0x-0AE3 |
| C7-624/P |
6ES7 624-1DE0x-0AE3 |
| C7-624 |
6ES7 624-1AE0x-0AE3 |
| C7-626/P |
6ES7 626-1DG0x-0AE3 |
| C7-626/P DP |
6ES7 626-2DG0x-0AE3 |
Table 1: CPU modules with built-in EPROM
In the case of CPU modules that have a memory card, you can copy the contents of the load memory to the memory card so as not to lose data in the case of power failure without battery or overall reset.
The procedure for copying the contents to the memory card is the same as the procedure for copying to a built-in EPROM.
Valid for:
| CPU type |
As from order no. |
| CPU 313 |
6ES7 313-1AD01-0AB0 |
| CPU 314 |
6ES7 314-1AE02-0AB0 |
| CPU 314 IFM |
6ES7 314-5AE10-0AB0 |
| CPU 315 |
6ES7 315-1AF01-0AB0 |
| CPU 315-2DP |
6ES7 315-2AF01-0AB0 |
| CPU 316-2DP |
6ES7 316-2AG00-0AB0 |
| C7-633/P |
6ES7 633-1DF0x-0AE3 |
| C7-633 DP |
6ES7 633-2BF0x-0AE3 |
| C7-634/P |
6ES7 634-1DF0x-0AE3 |
| C7-634 DP |
6ES7 634-2BF0x-0AE3 |
Table 2: CPU modules with memory card
In the case of CPU modules that work with a SIMATIC micro memory card (MMC), the load memory is on the MMC. It is precisely the same size as the MMC. When loaded, the program is stored on the MMC in such a way as to be immune to power failure and overall reset. The program is therefore always remanent in the load memory (on the MMC).
Valid for:
| CPU type |
As from order no. |
| SIMATIC S7-300 CPUs |
See Entry ID 19102565 |
| C7-613 |
6ES7 613-1CA0x-0AE3 |
| C7-635 Keys |
6ES7 635-2EC0x-0AE3 |
| C7-635 Touch |
6ES7 635-2EB0x-0AE3 |
Table 3: CPU modules with micro memory card
Note:
On all CPUs, you can only run the "Copy RAM to ROM..." function in the "STOP" operating mode.
Keywords:
Flash MC, MC
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german
