Gateway configuration manual
Profinet Slave/KNX TP – EK-BN1-TP
Revision 1.0.2 - Update: 10/12/2018
Configuration manual
© EKINEX S.p.A. – All rights reserved
Page 12
5.1 Memory image structure
The proper configuration of the device refers to a support volatile memory area where the acquired data are
temporarily copied, both on Profinet and KNX side: this memory area is divided into 2 buffers, “Profinet
image” and “KNX image”, each one composed of 1440 bytes.
Each support byte can be individually addressed (see
Position
field in
KNX Set Access
form) or you can
target a specific support bit in each buffer (
Bit Mode
field in
KNX Set Access
form).
As shown in figure, the same address can refer to both buffers:
•
“Profinet image” used in
KNX Set
Access
form for writing frames.
•
“KNX image” used in
KNX Set Access
form for reading frames.
Figure 4 – Support memory with “KNX image” and “Profinet image” buffers
The proper addressing of the support buffers must be manually performed by the user,
based on the size of the data to be acquired. Overlapping support data may end up in a
protocol converter mulfunction.
i
