Endress+Hauser PROFI BUS Proline Promag 53 PROFIBUS DP Operating Manual page 117

Electromagnetic flow measuring system
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Proline Promag 53 PROFIBUS DP/PA
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Endress+Hauser
BATCHING_FIX_COMP_QUANTITY module
A positive or negative correction value (IEEE 754 floating point number), including status, can be
cyclically transmitted by the PROFIBUS master (Class 1) to the measuring device using the
BATCHING_FIX_COMP_QUANTITY module (slot 9). The correction quantity balances out a
constant, system-related incorrect quantity. This can be caused, for example, by a pump over-
running or by the closing time of a valve. The correction quantity is determined by the system
operator. A negative compensation quantity must be specified for overbatching and a positive
correction quantity for underbatching. The permitted input range is +/- 10% of the batch quantity.
The unit selected in the measuring device is used as the unit.
Caution!
The batching quantity is a nonvolatile device parameter. For this reason, avoid constantly writing
this device parameter via PROFIBUS!→ Page 109
Note!
• This module is only evaluated by the measuring device if the additional "batching" software is
installed in the measuring device (order option).
• If the input range is not sufficient for the correction quantity, the batching quantity may have to
be adjusted.
• Further explanation of the parameter FIX COMPENSATION QUANTITY (7204) is contained in
the "Description of Device Functions" manual, which is a separate part of this Operating Manual.
Output data:
Byte 1
Byte 2
Byte 3
Fixed correction quantity (IEEE 754 floating point
number)
Note!
The status is not evaluated by the device.
EMPTY_MODULE module
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 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. Gaps between configured modules have to be assigned the
EMPTY_MODULE module.
For a more detailed description, see → Page 111
Byte 4
Byte 5
Status
Commissioning
117

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