Hi,

I read from a DP standard slave with a modular design/several identifiers, at this moment I use Legacy/BLKMOV to copy range of Inputs data to the data block.

BR

Hi,

I think instructions DPRD_DAT (for read) and DPWR_DAT (for write) is what you need.

The instructions are available for STEP 7 classic an TIA as well. Information can be found in the manuals. But as no information which software or CPUs is used, this is only a general hint.

DPWR_DAT: Write consistent data of a DP standard slave (classic CPUs)

DPWR_DAT: Write consistent data of a DP standard slave (TIA CPUs)

DPRD_DAT: Read consistent data of a DP standard slave (classic CPUs)

DPRD_DAT: Read consistent data of a DP standard slave (...)

Where and when do you need peripheral addressing?

regards

sancruz

Hi,

Isn't that DPRD_DAT can read only one module?

What I can see in help:

The destination area must have the same length that you configured for the selected module. If you read from a DP standard slave with a modular configuration or with several DP identifiers, you can only access the data of one module/DP identifier at the configured start address per "DPRD_DAT" call.

I would like to read the whole part of data from profibus device (pic in attachment)