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SIWAREX WP321 Weighing Module

Brand: Siemens AG
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SIWAREX WP321 is a versatile and flexible weighing module for the seamless integration of a static scale into the SIMATIC automation environment. 

The electronic weighing system is integrated in the SIMATIC ET 200SP series and uses all the features of a modern automation system, such as integrated communication, operator control and monitoring, diagnostic system and configuration tools in the TIA Portal, SIMATIC STEP 7, WinCC flexible and PCS 7.
Features
  • Uniform structure and universal communication through the integration in  I/O SIMATIC ET 200
  • Parameterization of the scale via operator panel, CPU or PC
  • Flexible configuration possibilities in SIMATIC TIA Portal resp. SIMATIC Step7 V5
  • Measuring of weight and force with a resolution of up to ±2 million parts
  • 600 Hz measuring rate (high speed)
  • 100/120 Hz measuring rate (efficient 50/60Hz interference frequency suppression)
  • Scale internal control of freely definable  limit values
  • Easy commissioning  via software  SIWATOOL without SIMATIC knowledge
  • Automatic adjustment without adjustment weights possible
  • Replacement of module without a new adjustment of scale
  • Direct use in ATEX zone 2 possible
  • Various status- und diagnostic information
  • "Ready for use“  sample application

1 - 1 of 1 Part Numbers
7MH4138-6AA00-0BA0
7MH4138-6AA00-0BA0
SIWAREX WP321 Weighing Modules
Single-channel, for platform scales or hopper scales with analog load cells (1 - 4 mV/V), 1 x LC, 1 x RS 485.
1 - 1 of 1 Part Numbers

Specifications

Brand

Communication Interface

  • SIMATIC ET 200SP Backplane Bus
  • RS-485 (SIWATOOL, Siebert Remote Display)

Measuring Accuracy

  • According to DIN 1319-1 of Full Scale Value at 20° C ± 10 K (68° F ± 10 K): 0.05 %

Resolution

  • Internal: ± 2 Million Parts

Measuring Frequency

  • 100 / 200 / 600 Hz

Load Cell

  • Full-bridge Strain Gauges in 4-Wire or 6-Wire System

Supply Voltage

  • Cell: 4.85 Vdc
  • Auxiliary: 24 Vdc

Permissible Range of Measuring Signal

  • -21.3 to +21.3 mV

Maximum Distance of Load Cells

  • 1,000 m (459.32 ft)

Certifications & Approvals

  • ATEX Zone 2
  • UL
  • FM
  • EAC
  • KCC
  • IECEx
  • RCM
  • EMC

Environmental Protection

  • IP20

Operating Temperature

  • -25° to 60° C (-13° to 140° F)

  • Non-automatic Weighing Instruments 
  • Force Measurements 
  • Fill-Level Monitoring 
  • Belt Tension Monitors

Documentation

Brochure

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