Siemens SIWAREX WT241 - DR 5 Correction Factors for Material Flow Rate

Communication
11.8 DR 5 Correction factors for material flow rate
SIWAREX WT241
118 Manual, 05/2015, A5E36046748A
11.8 DR 5 Correction factors for material flow rate
Data record DR 5 stores the correction factors from the material test. In legal trade
operation, the data record is write-protected. The material test is used to determine the
correction factor of a calibrated scale. With a material test, the conveyed amount of material
is subsequently measured or is already known at the beginning of the test.
You can use e.g. totalizer 6 for this material test. In order to prevent the material conveyed
during the test from being included in the balance, stop totalizing using command 652. All
totalizers then stop except for totalizer 6. You can subsequently reset totalizer 6 using
command 674 and use it for the test.
You can determine two different correction points with two different belt loads. A correction
characteristic is then produced depending on the actual belt load. If only one correction point
is to be used, set the "Belt load factor 2" parameter to 0 and the "Belt load factor 1"
parameter to e.g. 40. With this setting, correction factor 1 applies to the complete working
range of the scale. The influence of the belt speed is not taken into consideration for the
correction factors.
Set the correction factors to a value of 1 prior to the test. If this is not possible, you must
correct (multiply) the existing correction factor with the newly calculated factor.
Table 11- 6 Assignment of data record 5
Variable
Note
Type
L
Rw
Default
Min.
Max.
Register
Data record
number
Contains no. of data record
USHOR
T
2
r
5
-
-
1244
Length
Data record length information
USHOR
T
2
r
40
-
-
1245
Application
Information about which application
the DR belongs to
USHOR
T
2
r
104
-
-
1246
Version
identifier
Information about current data record
version
USHOR
T
2
r
1
1
65635
1247
Belt load
factor 1
(Page 119)
Belt load factor for correction point 1
(in % of nominal belt load)
FLOAT
4
rw
40
1248
Correction
factors 1
and 2
(Page 119)
Correction factor with belt load factor 1
FLOAT
4
rw
1
1250
Reserve
Reserve
FLOAT
4
rw
0
1252
Reserve
Reserve
FLOAT
4
rw
0
1254
Reserve
Reserve
FLOAT
4
rw
0
1256
Reserve
Reserve
FLOAT
4
rw
0
1258
Belt load
factor 2
(Page 119)
Belt load factor for correction point 2
(in % of nominal belt load)
FLOAT
4
rw
0
1260
Correction
factors 1
and 2
(Page 119)
Correction factor with belt load factor 2
FLOAT
4
rw
1
1262