INSTRUMENTS

DLC-NET

LOAD CELLS DIGITAL INTERFACE WITH DISPLAY AND FIELDBUS

DLCNET series are microprocessor interfaces units for strain gauge load cells. Easy to install, in the basic version allows weight visualization on the display. With the expansion board, many other information are enabled, included ingredients, with both immediate and delayed digital outputs. Available with  Profibus-DP® or Profinet® Fieldbus interfaces as an option.

GENERAL FEATURES

  • Compact and rugged metal enclosure for panel mounting
  • Complete digital calibration via push buttons
  • Profinet® or Profibus-DP®  communication Fieldbus (optional)
  • Meets the requirements of EMC Diretive 2014/30/EU
  • It is tested according to harmonized standards EN 61000-4 and EN 61000-6

Galvanic isolation through DC/DC converter between 24V dc power supply, the load cell, fieldbus and remote display for a maximum disturbances attenuation. In-factory electrical calibration.

PROFIBUS-DP® slave interface (up to 12 Mbit/s): allows easy connection to PLC/PC up to 124 units on single link.

 PROFINET® slave interface (10/100 Mbit/s) with integrated  Ethernet switch for easy daisy-chain connection.

 

TECHNICAL CHARACTERISTICS

 

Load cell supply

 

5 Vdc

Max current

:150 mA (4 load cells with Ri=350Ω)

Max sensitivity

40 nV/div

Input signal

from -4mV/V to +4mV/V

Max resolution

19 bit + sign (524.288 divisions at 4mV/V)

Conversion rate

10 or 80 sample/s (programmable)

Power supply

24Vdc + 10%, 3 W max

Dimensions

 144 x 72 x 120 mm (W x H x D)

DLCNET

Digital load cells interface with indicator

Basic version without expansion board -EB and without fieldbus port

  • Factory calibration range: 0÷4 mV/V
  • 4 digital inputs to remote control the front-panel push-buttons functions
  • RS485 serial output to remote indicator
  • Digital filter (1, 4, 8, 16, 32, 64 samples in mobile average)

DLCNET-PB

Digital load cells interface
with Profibus-DP® port and indicator

  • Same functions as described for DLCNET
  • Stable weight threshold tuning via keyboard or fieldbus
  • Profibus-DP slave interface (up to 12Mbit/s): up to 124 units on a single link.

DLCNET-PN

Digital load cells interface
with Profinet® port and indicator

  • Same functions as described for DLCNET
  • Stable weight threshold tuning via keyboard or fieldbus
  • PROFINET® slave interface (10/100 Mbit/s) with integrated Ethernet switch for easy daisy-chain connection.

EB

Expansion Board

  • In combination to one of the versions above
  • 4 set point output (PNP 24V/0,1A) / alternative to parallel output
  • Analog output (4-20 mA or 0-20 mA)
  • Printer RS232 or RS485 serial output
  • Batch mode implements the automatic dosing up to 4 ingredients, with immediate outputs for solenoid valves and delayed ones for pumps
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