Parameter Assignment By Means Of The Modbus Interface; Image 4-2 Siwarex Wp251 In Stand-Alone Operation - Siemens SIWAREX WP251 Manual

The "Ready-for-Use" example application is included in the scope of delivery of the
configuration package and is also available from Siemens Online Support. In addition to the
function block, it contains a complete TIA HMI project for operation and commissioning of
scales, which the user can edit in TIA. Further information on integration in the TIA Portal
can be found in section Integration in SIMATIC S7-1200 (Page 185)
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 WP251 via 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.
Image 4-2 SIWAREX WP251 in stand-alone operation
SIWAREX WP251
Manual, 12/2015, A5E37203357A
Application planning
4.2 Parameter assignment options
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