Siemens processor used Data Blocks

JonnyJ

Member
Join Date
Feb 2011
Location
Howell
Posts
2
I'm trying to locate the usage of hidden data blocks used only by the processor. The block folder doen not contain this data block.
Is there anyway to find what each bit is being used. My example the hidden data block is for profinet.
DB200 is system created DB that monitors nodes on network and reside in the processor only.

Thanks
 
The CPU does not create any blocks on its own. And the block isnt 'hidden'. It may possibly exist only online, i.e. in the CPU and not in the offline project.
It is possible to create DB's dynamically through calls to SFC22, SFC82 or SFC85. These calls must be created by the original programmer. Seach for SFC22, SFC82 and SFC85.

Alternatively you can also do an offline/online compare. The DBs that only exist online may possibly be the ones created dynamically.
 

Similar Topics

Hey Guys, So I am lucky enough to be neck deep with an old piece of machinery that is controlled by Siemens S5 gear. It is here that I should...
Replies
2
Views
2,107
We have an application where a PC application needs to exchange text string messages with a S7-300 Siemens processor via TCP or UDP...
Replies
0
Views
2,096
I am trying to only receive data from a device via serial communication. I can read the data through my com port on my computer so I know that it...
Replies
4
Views
1,695
The error we get is: "The address element is out of range. The valid range for TCP type addresses is 1 to 20480." Has anyone seen this before...
Replies
9
Views
2,183
I am looking for a way to get the Hardware Serial Number from a Siemens S-7 319 processor. Does anyone know of a way to get to this number using...
Replies
1
Views
1,837
Back
Top Bottom