BST ekr CON 600 net Translation Of The Original Manual

5
Configuration Examples
76/79 ekr CON 600 net – Process Data Exchange via Profibus
5.1.4.2 Acyclic Data Transfer
Read Access
Use the RDREC block for read access to acyclic variable blocks.
Fig.19: RDREC block for the read access to acyclic data
Meaning of the parameters
Parameter Description
REQ Input used to start the reading process.
ID Interface ID of the ekrCON600net controller from the Device Overview.
INDEX Index of the object to be read.
The index for the various objects can be found in the descriptions of the communication
objects.
MLEN Object length in byte
The object length for the various objects can be found in the descriptions of the commu-
nication objects.
VALID Output that becomes TRUE if the reading process was successful.
BUSY Output that is TRUE as long as the reading process continues.
ERROR Output that becomes TRUE when an error occurs.
STATUS Status code
The meaning of the status code can be looked up in the help menu of the TIA portal.
LEN Output that delivers the number of bytes already read.
RECORD Memory area into which the data is to be written.
The memory area must be created by the customer first.
The length of the read data must match the MLEN para-
meter and the length of the RECORD.
More information about the block can be found on the Siemens
information page, which you can access by pressing the F1 func-
tion key in the TIA Portal.

BST ekr CON 600 net Specifications

General

Brand	BST
Model	ekr CON 600 net
Category	Controller
Language	English