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SIWAREX WP241
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Integration in automation systems
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S7-1200
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Directly via SIMATIC bus
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- Operator Panel (not from the SIMATIC Basic series)
- Automation systems from other manufacturers
(possible with limitations)
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Via Ethernet (Modbus TCP/IP) or
RS 485 (Modbus RTU)
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Communication interfaces
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- SIMATIC S7-1200 backplane bus
- RS 485 (Modbus RTU)
- Ethernet (Modbus TCP/IP & SIWATOOL)
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Commissioning of the scale
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PC configuration software SIWATOOL (Ethernet) or Operator Panel (Modbus / S7-1200)
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Calibration approval
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MID according to OIML R50 (available soon)
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Internal resolution
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± 4 million parts
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Number of measurements/second (internal)
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100
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Updating time for material flow rate
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100 ms
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Filter for conveyor load
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Low-pass filter (limit frequency 0.05 ... 50 Hz)
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Filter for belt speed
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Low-pass filter (limit frequency 0.05 ... 50 Hz)
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Weighing functions
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Readout data
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- Weight
- Belt load
- Material flow rate
- Accumulated total
- Main total
- Free totals 1 … 4
- Belt speed
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Limits (min/max)
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- Belt load
- Material flow rate
- Belt speed
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Zeroing function
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On command or automatic set to zero
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Load cells
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Strain gauges in 4-wire or 6-wire system
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Load cell excitation
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Supply voltage (regulated via feedback)
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4.85 V DC
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Permissible load resistance
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> 40 ?
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< 4100 ?
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With SIWAREX IS Ex interface
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> 50 ?
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< 4100 ?
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Load cell characteristic
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1 … 4 mV/V
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Permissible mesaurement signal range
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-21.3 ... +21.3 mV
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Max. distance of load cells
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500 m (229.66 ft)
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Connection to load cells in Ex zone 1
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Optionally via SIWAREX IS Ex interface
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Ex approvals
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- ATEX Zone 2
- UL
- FM available soon
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Auxiliary power supply
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Rated voltage
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24 V DC
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Max. power consumption
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200 mA
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Max. power consumption SIMATIC Bus
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3 mA
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IP degree of protection to DIN EN 60529; IEC 60529
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IP20
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Climatic requirements
Tmin (IND) ... Tmax (IND) (operating temperature)
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Vertical installation
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-10 ... +55 °C (14 ... 131 °F)
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Horizontal installation
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-10 ... +40 °C (14 ... 104 °F)
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EMC requirements according to
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EN 45501
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Dimensions
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70 x 75 x 100 mm (2.76 x 2.95 x 3.94 inches)
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