Siemens SIWAREX WP231 - Selection of Process Value 1, 2

Scale parameters and functions
8.14 DR 14 SIMATIC interface parameters
SIWAREX WP231
106 Manual, 07/2014, A5E31238908A-02
8.14.2
Selection of process value 1, 2
The weighing module can communicate with an S7-1200 CPU in two ways: Just via the I/O
or by reading out complete data records. The I/O is faster and exhibits a higher performance.
Two free-definable channels are available in the S7 I/O (process value 1 and process value
2). Users can decide which scale values (see table) are to be made available cyclically at
these two parameters of the PLC.
Table 8- 14 Selection table for process value 1,2
Process value
Decimal code
From DR
Format
No process selected 0 - -
Gross process 1 30 FLOAT
Net process 2 30 FLOAT
Tare process 3 30 FLOAT
Legal trade G/N weight 4 30 FLOAT
G/N weight_x10 5 30 FLOAT
Legal trade tare weight 6 30 FLOAT
Gross-2-process-value 7 30 FLOAT
Net-2-process-value 8 30 FLOAT
Unfiltered digit value 9 31 LONG
Filtered digit value 10 31 LONG
Filtered digit value 2 11 31 LONG
Refresh counter 12 30 USHORT
Status of analog output, digital outputs,
and digital inputs
13 31 WORD, BYTE
Table 8- 15 Structure of status of analog output, digital outputs, and digital inputs
Byte 0 of
dw_ProcessValue1/2
Byte 1 of
dw_ProcessValue1/2
Byte 2 of
dw_ProcessValue1/2
Byte 3 of
dw_ProcessValue1/2
Analog output digits
HIGH
Analog output digits LOW Status of digital outputs Status of digital inputs
WORD Bit 0 = status DQ 0 Bit 0 = status DI 0
Bit 1 = status DQ 1 Bit 1 = status DI 1
Bit 2 = status DQ 2 Bit 2 = status DI 2
Bit 3 = status DQ 3 Bit 3 = status DI 3
See also
Information about previous versions (Page 17)