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4.2.2
Parameter assignment with a SIMATIC Panel
All parameters can be assigned and the module put into operation using a SIMATIC HMI
Panel connected to the S7-1200 CPU and the SIWAREX WP231 function and data blocks.
The Ready-for-Use software is included in the scope of delivery of the configuration
package. This includes the Step7 program for the CPU and the HMI project for scale
visualization. Further information on integration in the TIA Portal can be found in chapter
→ Integration in SIMATIC S7-1200 (Page 145).
Figure 4-3
4.2.3
Parameter assignment by means of the Modbus interface
You have the option to assign the parameters with a SIMATIC panel which is connected
directly to the SIWAREX module. The SIWAREX module behaves like a Modbus slave in
this case. Loadable HMI software for a SIMATIC Panel TP700 Comfort is provided in the
scope of delivery of the configuration package.
All SIMATIC HMI Comfort Panels can be used for direct Modbus communication. The use of
SIMATIC HMI Basic Panels is not possible at the moment. A direct connection between a
SIMATIC HMI Panel and SIWAREX WP231 by means of Modbus RTU has not been
approved.
The parameters for the SIWAREX module can also be prepared in a third-party system and
transmitted to the electronic weighing system by means of Modbus RTU or TCP/IP. Detailed
information on assignment of the holding registers can be found in chapter → Scale
parameters and functions (Page 63).
SIWAREX WP231
Manual, 07/2014, A5E31238908A-02
Configuration of the SIMATIC CPU with two Operator Panels
Application planning
4.2 Parameter assignment options
23
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