TIA Portal Coping Data From Input To DB

AF52

Member

A

Join Date

Apr 2010

Location

Lancashire

Posts

8

• Jun 26, 2014

• #1

Hello
I am looking for some assistance in moving input data into a data block using Siemens TIA Portal V13.
I have a device connected via Profibus. I am receiving a total of 76 input bytes from this device starting at I1000 in the hardware data table.
I want, if possible, to copy all 76 bytes of data to DB300 with one instruction.
I have tried BLKMOV and UBLKMOV but can not get these instructions to work.
Does anyone have a better solution?
Thanks in advance.

 

nwboson

Member

Join Date

Mar 2009

Location

Portland, Oregon

Posts

233

• Jun 26, 2014

• #2

You could write a function to do that. Under the hood would not be a single instruction but it would look that way to the caller.

 

mk42

Lifetime Supporting Member

M

Join Date

Jun 2013

Location

MI

Posts

3,278

• Jun 26, 2014

• #3

Depending on which CPU you are using, and how it is configured, DPRD_DAT may work instead. It is under Extended Instructions -> Distributed IO -> Additional Instructions.