Proline Promag 53 PROFIBUS DP/PA
!
Endress+Hauser
It is essential to adhere to the following sequence/assignment when configuring the modules in the
PROFIBUS master system:
Slot
sequence
1
2
3
SETTOT_MODETOT_TOTAL
4
5
6
7
8
BATCHING_QUANTITY
9
BATCHING_FIX_COMP_QUANTITY
Note!
• The assignment of the measured variables for the Analog Input function blocks (1 to 2) and the
totalizer function blocks (1 to 3) can be changed by means of the CHANNEL function. A detailed
description of the individual modules is contained in the following section.
• The device has to be reset once a new configuration has been loaded to the automation system.
This can be effected as follows:
- By means of the local display
- By means of an operating program (e.g. FieldCare)
- By switching the supply voltage off and on again.
6.6.3
Description of the modules
AI (Analog Input) module
The AI module (slots 1, 5) cyclically transmits the corresponding measured variable, including the
status, to the PROFIBUS master (Class 1). The measured variable is represented in the first
four bytes in the form of floating point numbers in accordance with the IEEE 754 standard. The fifth
byte contains standardized status information corresponding to the measured variable.
Further information on the device status → Page 137
Input data
Byte 1
Byte 2
Byte 3
measured variable (IEEE 754 floating point number)
Module
Description
AI
Totalizer function block 1
TOTAL → output variable = volume flow (factory setting)
SETTOT → totalizer control
MODETOT → totalizer configuration
Totalizer function block 2
TOTAL → output variable = volume flow (factory setting)
SETTOT → totalizer control
MODETOT → totalizer configuration
Totalizer function block 3
TOTAL → output variable = volume flow (factory setting)
SETTOT → totalizer control
MODETOT → totalizer configuration
Analog Input function block 2
AI
Output variable → mass flow (factory setting)
Value for local display
Batching quantity
Fixed correction quantity
Byte 4
Byte 5
Status
Commissioning
111
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