Siemence PLC is not going online and download not possible.

Showing error in low memory space.

We don't have extra memory in PLC.

what should I do further.my line is running.

...sent from App

hi Vishal Jakkani,

to help you we need more information.

What CPU do you have?

What SW in which version do you use?

Maybe you can share a screenshot of the error-message, so it is clear what happens.

the more we know, the more we can help.

regards,

I got the Same problem which is solved as to format the 12mb memory card in windows explorer, then put it I to s7 1500 ver 2.2 to above plc and go online, formated in TIA portal, then download the program.

It worked fine. 

You can try to reduce the program size by  getting details as going to program info in tia portal if it is necessary 

Sir at Present My proble is resolved

Compressed the memory.

But I don't know the drawback of compressing the memory

When I talk with machine supplier, they denied to do so further .it can lead to changes in process data.

My doubt is, Its is possible so?

We are using CPU414-3DP

I have attached the memory status after compressing data and my hardware configurations.

...sent from App

Hello Vishal;

Compressing the memory of a S7-400 CPU should cause no major problem in your operations. See the following discussion:

Can I compress memory during work of PLC?

https://support.industry.siemens.com/tf//us/en/posts/can-i-compress-memory-during-work-of-plc/18046/?page=0&pageSize=10

You can even use a specialized function SFC 25 "COMPRESS" to command the compression of the load memory through your program, as explained by our friend Denilson Pegaia. Compression in a Siemens PLC is the equivalent of a Defrag on a Windows PC, it eliminates gaps in the memory structure to free available but unsued areas. Compression can happen even while the CPU is running, without issues.

See the screenshot  below (taken from the Standard and System Functions manual [for S7-300/400 CPUs] ) for details of SFC 25.

https://support.industry.siemens.com/cs/us/en/view/109751826

Hope this helps,

Daniel Chartier