Control unit SIWAREX FTA

Control unit SIWAREX FTA

  • Control unit for legal-for-trade dosing systems
  • Automatic and non-automatic weighing
  • Parameterizable digital inputs and outputs
  • Theoretical adjustment without adjustment weights
  • Recording of weighing sequence
  • Legal-for-trade alibi memory
  • Can be used in Ex applications (optional)


Data sheet


The control unit SIWAREX FTA is a modern evaluation system. It is the optimum solution wherever high demands are placed on the accuracy and speed of the weighing process in an automation environment.

Typical applications:

In static weighings in the automation environment, also for legal-for-trade applications:


  • Control of dosing systems
  • Filling of solids or liquids
  • Dosing of individual quantities
  • Checking individual quantities
  • Loading or receiving of materials and totalizing


For all applications, the control unit provides for EC type approval (OIML R76, OIML R61, OIML R51, OIML R107 scale types).


The SIWAREX FTA function module is integrated in SIMATIC S7/ PCS7 and uses the features of this modern automation system, such as integral communication, diagnostics and configuration tools.


Pre-configuration and a software tool for operation via PC facilitate the installation. As the SIWAREX FTA is already factory-calibrated, modules can be replaced with a simple adjustment via SIWATOOL FTA.


The control unit SIWAREX FTA provides:

  • Implementation of scale types: non-automatic weighing instrument, automatic gravimetric filling instrument, automatic catchweighing instrument, discontinuous totalizing automatic weighing instrument (totalizing hopper weigher)
  • 400 weighing procedures per second
  • Resolution of 16 million counts
  • Connection to Profibus-DP via ET 200M
  • Monitoring functions
  • Legal-for-trade protocol memory
  • Recording of weighing sequence
  • Diagnostics buffer for 100 events
  • Monitoring of load cell and cabling
  • Simulation of dosing sequence
  • Data transfer via Internet upon commissioning and breakdown
  • Simple and comfortable commissioning and servicing via software tool