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Industrial

W-Bus

Versatile microprocessor weight transmitter can be used as simple weight transmitter, weight viewer with large display and keyboard or as a real weighing system, according to Customer requirements and the installed options.


Designed and developed for interfacing with a PLC or PC environment, it is directly supplied with the service 24Vdc thanks to its internal optically-isolated supply voltage.

W-Bus consists of the main Mother Board, optional Bus board used to install optional boards, 4 types of optional boards and optional Remote Terminal with display and keyboard.

Currently, 4 optional boards are available: BCD Output Card, Analogue Output 4 ÷ 20mA Card, RS232C Card and RS485 Card. The optional boards are selected according to the weight to be transmitted to the PLC/PC. 

 
Functions
 
  • Simple installation on rail Omega/DIN.
  • Configuration Parameter and Calibration Settings via W-Bus SetUp software (supplied), equipped with simple and intuitive interface.
  • Storage of all the values programmed in the internal EEProm memory.
  • Centre-Zero, Automatic Zero Tracking and Standstill Weight Control Functions.
  • Weight Accumulation and Peak Value Functions.
  • Weight transmission Upon External Input Request, Software Request, At Time Intervals.
  • Possibility of transmitting Net Weight, Gross Weight or Displayed Weight.
  • Programmable Digital Filter to reduce weight variations due to oscillations.
  • Automatic Weight Calibration to facilitate calibration operations in the field.
  • Viewing resolution can be selected from a large range of values.
  • Adjustable Conversion Speed.
  • 8 optically-isolated Inputs and 8 150mA Outputs that can be set from the software.
  • 4 Thresholds that can be set from the software.
  • Optically-isolated 24Vdc Power Supply.
  • BCD, 4 ÷ 20mA, RS232C, RS485 outputs.
  • Diagnostic programme to facilitate maintenance procedures.


Technical Specifications


A/D Converter   24-Bit Sigma-Delta
Conversion Speed   25 ... 200 conv./sec.
A/D Converter Input   Differential
Load Cells Supply Voltage   5Vdc (protected against over-voltage and short-circuits)
Load Cells Sensitivity   0.1 … 3.0mV/V
Load Cells Connection   Max. 8 350 ohm load cells
Display Resolution   1, 2, 5, 10, 20, 50, 100
Unit of Weight   g, kg, t, lb
Decimal Digit   0, 1, 2, 3, 4
Inputs   8x PNP optically-isolated Inputs
Outputs   8x 150mA PNP Outputs (max. 800mA total)
Power Supply   24Vdc ± 15%
Power Consumption   Max. 24W
Operating Temperature   -15°C … +60°C (+5°F … +140°F)
Case   Nylon
Degree of Protection (EN60529)   IP00
Weight   0.8kg (1.76lb)
Dimensions (L x W x H)   215x125x130mm (8.46”x4.92”x5.12”)

 

Optional

 

  • Remote Terminal with display and keyboard.
  • Bus Card.
  • RS232C Card.
  • RS485 Card.
  • Analogue Output 4 ÷ 20mA Card.
  • BCD Card.