Do you mean in PLC hardware configuration, or PLC tag table?

dsjtu

Is there a way to access "SystemMemoryByte" and "ClockMemoryByte" on a s7-1200 CPU  via Openness ?

I've searcherd the tree with OpennessExplorer and only found the variable on the s7-1500 CPU.

Given that via Tia Portal the interface to change that bit is literally the same, why isn't there a way to do it with Openness ?
Am I missing something ?

------------------------------------------------------------------------------------------
Split from Openness: System and Clock Memory.

For a minute, let's assume you never checked Openness Explorer (OPE) on the S7-1200, and only checked it on the s7-1500.  From that, you gathered the relative location of the checkboxed attributes for SMB and CMB.

Let's further pretend you as a Siemens developer did the s7-1500 Openness work first and got busy when porting everything over to the s7-1200 and neglected something that allowed OPE to visualize those attributes on the s7-1200, yet they were still at the same relative location.

Have you tried reaching these attributes as if the PLC were an s7-1500 in your Openness code?  If so, what happened?

Lastly, what did Siemens say when you brought this up to them using the Support Request link provided in the gray bar above these online forums?  They are able to respond with *real* answers rather than "what if's" like I posed above.

dsjtu

I'm referring to the hardware configuration.
I've attached a screenshot with the PLC hardware configuration flag to be marked.
On the bottom of the figure there's the OpennessExplorer path to access that same attribute.

The thing is that the "SystemMemoryByteAddress" is only available on a S7-1500 CPU.
If I try to access it on the S7-1200 CPU, it is nowhere to be found.
Same thing goes for the "ClockMemoryByte" attribute.