Weighing module SIWAREX CS


The SIWAREX CS is a compact weighing electronics for the Decentral Peripheral System  ET 200S from SIMATIC.

SIWAREX CS is the optimum solution wherever strain gauge sensors, such as load cells, force sensors or torque measuring shafts, are used for measuring tasks.

The following are typical SIWAREX CS applications: Non-automatic weighing machines , fill level monitoring of silos and bunkers, measuring of crane and cable loads, load measuring of industrial lifts and roll trains, weighing in potentially explosive areas (zone 2 direct, zone 1 using Ex interface SIWAREX IS) , monitoring of belt tension, force measuring, container weighers, platform scales and crane scales.


 Integration in automation systems S7-400, S7-300, C7, IM151-7 CPU

 Through ET 200S respectively
 backplane bus

 Communication interfaces

 SIMATIC S7 (ET 200S backplane
 bus), RS 232, TTY

 Error limit to DIN 1319-1 of full-scale value at  20  °C ± 10 K

 0,05 %

 Internal resolution


 Number of measurements/second


 Ex approvals zone 2 and safety

 ATEX 95, FM, cULUS Haz. Loc.


  • Standardized construction technology and universal communication due to the integration in SIMATIC S7

  • Application in the decentral system concept by connecting to PROFIBUS DP through ET 200S

  • Measuring weight or force with a resolution of 65,000 parts

  • Display can be connected

  • Extensive diagnostic capabilities

  • Simple parameter definition with the SIWATOOL CS program

  • Theoretical adjustment without adjustment weights

  • Modules can be exchanged without readjusting the scale

  • Can be used for Ex-applications