Scale parameters and functions
8.3 DR 3 Calibration parameters
SIWAREX WP251
62 Manual, 12/2015, A5E37203357A
Basic calibration of the scale is accomplished through the calibration parameters and
calibration procedure (assignment of zero point and reference point). With a wire jumper on
the "P" and "PR" terminals (parameter protection), most of DR 3 parameters can no longer
be changed (write-protected). This provision is relevant for applications requiring official
calibration. All changes in data record 3 require service mode to be switched on for the
module. If service mode is not active, all parameter inputs are directly rejected with an error.
● Read DR 3 from SIWAREX (in SIWATOOL, SIMATIC DB or ModbusMaster)
● Check all parameters and change them for the specific application
● Transfer data record DR 3 to SIWAREX (from SIWATOOL, SIMATIC DB or Modbus
Master)
● Perform the calibration of the scale (zero point and calibration point 1 – optionally
calibration point 2)
● Read DR 3 from SIWAREX (in SIWATOOL, SIMATIC DB or ModbusMaster)
Table 8- 1 Assignment of data record 3
Data record number
Contains no. of the
USHORT
2
3
-
-
-
1000
Length
Data record length
information
USHORT
2
172
-
-
-
1001
Application
Information on appli-
cation to which DR
USHORT
2
105
-
-
-
1002
Version identifier
Current data record
USHORT
2
1
1
65535
-
1003
Scale name header Maximum length and
actual length of string
UBYTE 2 12,
12
- - x 1004
Scale name (Page 66) Freely selectable
CHAR 12 " " - - x 1005
Unit of weight (Page 66) 0: "mg"
1: "g"
2: "kg"
3: "t"
4: "oz" (ounce)
5: "lb" (pound)
6: "T" (=short tons)
USHORT 2 2 0 6 x 1011
Gross identifier (Page 66) 0: "B"
USHORT 2 0 0 1 x 1012
Code for regulations
0: None
USHORT 2 0 - - - 1013
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