Siemens SIWAREX WP251 User Manual

Scale parameters and functions
8.14 DR 14 Selection process value 1, 2
SIWAREX WP251
Manual, 12/2015, A5E37203357A
103
8.13.6
RS485 number of stop bits
This parameter defines the number of stop bits for the RS485 interface.
Value
Stop bits
0 (default)
1
1 2
8.13.7
RS485 Modbus address
This parameter defines the Modbus address (1 to 255) for communication via the RS485
interface with the Modbus protocol.
8.13.8
Decimal place for Siebert indicator
A fixed decimal place must be specified if a Siebert indicator is used. The following values
are permitted: 0 ... 4
8.14
DR 14 Selection process value 1, 2
The weighing module can communicate with an S7-1200 CPU in two ways: Via the I/O only
or by reading/writing complete data records. The I/O is faster in this case and exhibits a
higher performance because the data is made available to the S7-1200 or SIWAREX
automatically in each PLC cycle. Using two user-definable channels in the S7-I/O (process
value 1 and process value 2), the user can decide which scale values (see table) are to be
made available cyclically to the PLC in these two parameters.
Table 8- 13 Selection table for process value 1,2
Process value
Function code
From DR
Format
No value selected
0
-
-
Gross weight 1 30 FLOAT
Gross/net weight (default)
2
30
FLOAT
Tare weight
3
30
FLOAT
Gross process weight
4
30
FLOAT
Gross/net process weight
5
30
FLOAT
Tare process weight
6
30
FLOAT
Net weight x10
7
30
FLOAT
Status of analog output, digital out-
puts and inputs (see table)
8 31 LONG
NAWI Status bits (default)
9
30
USHORT
Refresh counter
10
31
UINT

Siemens SIWAREX WP251 Specifications

General

Brand	Siemens
Model	SIWAREX WP251
Category	Accessories
Language	English