A versatile weighing module for all simple weighing and force measuring tasks.
The SIWAREX U is a versatile weighing module for all simple weighing and force measuring tasks. It is used either centrally in a SIMATIC S7-300 or decentrally via PROFIBUS-DP link to an S7-400, SIMATIC S5 or systems of other manufacturers. The SIWAREX U combined with standard SIMATIC components offers an optimum hardware and software solution.
Key Features
- Uniform design technology and consistent communication in SIMATIC
- Measurement of weight or force with a high resolution of 65000 parts and an accuracy of 0.05%
- Space saving through use of two-channel version for two scales
- Direct connection of a remote display to the TTY interface
- Theoretical adjustment without adjustment weights
- Replacement of module without renewed adjustment of scale
- Simple parameterizing with SIWATOOL
- Intrinsically-safe load cell supply for the hazardous area zones 1, 2 (optional)
- Can be used for Ex applications
Technical Specifications
SIWAREX U | Integration in automation systems S7-400, PCS7, C7, IM151-7 CPU | Via ET 200M; Direct integration
in S7-300 | |
|---|---|---|---|
Communication interfaces | SIMATIC S7 (P-Bus), RS 232,
TTY | ||
Error limit | 0.05 % | ||
Internal resolution | 65535 | ||
Number of measurements/second | 50 | ||
Approvals | ATEX 95, FM, CULUS Haz. Loc.
| ||
Design
SIWAREX U is a compact SIMATIC S7-300 function module (FM) and can be directly snapped onto the SIMATIC S7-300 or ET 200M backplane bus. The snap-on system for DIN rails greatly simplifies the installation/cabling work.
The load cells, power supply and serial interfaces are connected via the 20-pin standard front connector.
Operation of SIWAREX U in SIMATIC ensures that the weighing system is completely integrated into the automation system.
Application
SIWAREX U is the optimum solution wherever strain gage sensors, such as load cells, force sensors or torque measuring shafts, are used for measuring tasks. The typical applications of SIWAREX U are:
- Fill level monitoring of silos and bunkers
- Monitoring of loads on cranes and cables
- Measuring the loading on conveyor belts
- Overload protection of industrial elevators or rolling mills
- Balances in hazardous areas (using an Ex interface)
- Monitoring of belt tension
Typical applications: levels in storage silos and containers, monitoring crane loads, measuring conveyor belt loads, overload protection for industrial lifts or mill trains.
In general, anywhere where weights need to be recorded and transferred to an automation system for processing as quickly as possible, with no bias and without the need for an additional interface.
The SIWAREX U Advantage
SIWAREX U offers the following key advantages:
- Uniform design technology and consistent communication in SIMATIC
- Implementation in a distributed system concept thanks to connection to PROFIBUS DB/PROFINET via ET 200M
- Measurement of weight or force with a high resolution of 65 000 parts and 0.05% accuracy
- Space saving through use of two-channel version for two scales
- Direct connection of a remote display to the TTY interface
- Simple adjustment of scale using the SIWATOOL U program
- Supports theoretical adjustment without adjustment weights
- Supports replacement of module without recalibration of scales
- Can be used in Ex applications
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