Endress+Hauser PROline promag 53 - 6.6 PROFIBUS DP Cyclic Data Transmission

Promag 53 PROFIBUS DP/PA Commissioning
Endress+Hauser 105
6.6 PROFIBUS DP cyclic data transmission
Below is a description of the cyclic data transmission when using the Promag 53 GSD file
(complete device functionality).
6.6.1 Block model
The block model illustrated shows which input and output data the measuring device
provides for cyclic data transmission via PROFIBUS DP.
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Fig. 61: Block model for Promag 53 PROFIBUS DP Profile 3.0
6.6.2 Modules for cyclic data transmission
The measuring device is a so-called modular PROFIBUS slave. In contrast to a compact slave,
the structure of a modular slave is variable - it consists of several individual modules. In the
GSD file, the individual modules (input and output data) are described with their individual
properties. The modules are permanently assigned to the slots, i.e. the sequence or
arrangement of the modules must be observed when configuring the modules (see following
table). Gaps between configured modules have to be assigned the EMPTY_MODULE module.
To optimize the data throughput rate of the PROFIBUS network, it is recommended to only
configure modules that are processed in the PROFIBUS master system.
It is essential to adhere to the following sequence/assignment when configuring the
modules in the PROFIBUS master system:
Esc
E
+
-
XXX.XXX.XX
Esc
E
- +
Analog Input 1
Output value AI
Output value AI
Out value TOTAL
Analog Input 2
Totalizer 1
Signal
processing
PROFIBUS
PROFILE
Parameter
Manufacturer
specific
Parameter
Control (CONTROL_BLOCK)
Display value (DISPLAY_VALUE)
Transducer
block
Configuration SETTOT, MODETOT
Totalizer 3
Measured variable 1
Measured variable 2
Out value TOTAL
Local
Display
Out value TOTAL
Totalizer 2
Batching quantity (BATCHING_QUANTITY)
Compensation quantity (BATCHING_FIX_COMP_QUANTITY)
PROFIBUS DP
Physical
Block
Measured variable 1
Measured variable 2
Measured variable 3
Measured variable …
Configuration SETTOT, MODETOT
Configuration SETTOT, MODETOT
Slot
sequence
Module Description
1AI
Analog Input function block 1
Output variable  volume flow (factory setting)
2
TOTAL or
SETTOT_TOTAL or
SETTOT_MODETOT_TOTAL
Totalizer function block 1
TOTAL  output variable = volume flow (factory setting)
SETTOT  totalizer control
MODETOT  totalizer configuration