Configuring Siwarex Wp231 Weighing Module - Siemens SIMATIC S7-1200 Manual

5 Configuration and Settings

5.4 Configuring SIWAREX WP231 weighing module

5.4 Configuring SIWAREX WP231 weighing module
The SIWAREX WP231 has to be configured accordingly to adjust the weighing
module to the load cell used and the specific application case. New modules are
delivered with "factory settings", which satisfies the majority of the applications.
Using a command, these factory settings can also be restored later. The following
configuration steps have to be made to adapt to the application:
1. Reset to factory settings
2. Specify the calibration and load cell parameters
The individual elements are:
–
Weight unit
The weight unit (e.g. 'g' or 'kg') is used for interpreting the weight display. It
determines the unit of other parameters, such as maximum weighing
range, numerical increment and calibration weight 1.
–
Maximum weighing range
The maximum weighing range corresponds to the rated load E
load cell. For the load cell used this is E
–
Resolution of the load cell
The resolution corresponds to the minimum scale interval V
cell. For the SIWAREX WL260 SP-S AA load cell used, this is
V
min
–
Calibration weight 1
"Calibration weight" added later to the scale during calibration. The
calibration weight must be at least 5% of the rated load of all connected
load cells. As a calibration weight you use an object, whose exact weight
you know.
The application requires the following values which deviate from the factory
settings:
Table 5-5: Values deviating from the factory settings
Parameter
Weight unit
Maximum weighing range
Numerical increment d
Calibration weight 1
Note
In this example, the SIWAREX WP231 weighing module is used with firmware
V3.1.1 (\5\). This firmware allows the configuration and calibration via control
commands. Chapter
You can also perform the basic commissioning with the help of the SIWATOOL
V7 (Table
The SIWATOOL V7 is essential to update the SIWAREX WP231 firmware.
Weighing, Controlling and Logging (Set 6)
Entry ID: 82454336, V2.0,
= E /15000. This corresponds to a numerical increment d of 0.2 g.
max
Default
' kg '
100 [ 100kg]
0.1 [ 0.1kg]
100 [ 100kg]
7.2.2 demonstrates the settings required for these sets.
2-3) and the brief instructions (\7\).
10/2017
max
= 3 kg.
max
of the load
min
Application
' g '
3000 [ 3000g]
0.2 [ 0.2g]
1100 [ 1100g]
Known calibration weight which is
available to the user
of the
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