Product Manual WS74
__________________________________________________________________________________
Copyright
DZG Metering GmbH, Heidelberger Str. 32, D-16515 Oranienburg
Copies only are allowed authorized by DZG
2/22/2019
Page 20 / 37
12.3
Firmware architecture
The Basic structure of the firmware.
AL
（
Application Layer
）
DAL
（
Driver Application
Layer
）
HD
（
Hardware Driver
）
DML
（
Data Manage
Layer
）
AL
（
Application Layer
）
DAL
（
Driver Application Layer
）
HD
（
Hardware Driver
）
DML
（
Data Manage Layer
）
Write data
Write data
DML polling and Read data
Read data
AL Write Data
Message post AL, AL Read data
AL Write Data
AL Read data
Figure 10 Firmware structure
