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Home / Products / Weighing Scale Indicator / Weighing Process Control Indicator / D520 Multifunctional Industrial Process Weighing Controller


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D520 Multifunctional Industrial Process Weighing Controller

D520 Weighing Controller is suitable for weighing in the chemical dangerous situations, such as bagging,filling,batching and weighing checking,etc.
Serial Interface:
Protection Level:
  • D520


D520 Multifunctional Industrial Process Weighing Controller

– D520 is a high precision Industrial Process Weighing Controller. This weighing controller has a variety of field-bus communication with high reliability which is typical for complicated and harsh environment.

– Therefore D520 can be used in chemical and hazardous industries for weighing purpose,packaging engineering,batching control system,filling system solution,etc…

Weighing Indicator Overviews:

  • One analog load cell I/F, support up to 10x350 Ohm load cells

  • Up to 150,000 display Division

  • 128X64 dot matrix OLED display

  • RTC (Date & Time)

  • Two serial ports:

    COM1 - RS232

    COM2 - RS232/485

  • 10/100M Ethernet port

    Continuous Output Weight ( TCP/UDP)

    Demand Input and Output (TCP/UDP)

    MODBUS-TCP Server (TCP)

  • Calibration Methods

    2-Point Calibration

    3-point Calibration

    Free Weights Calibration

  • Target Controller

    1-speed or 2-speed control mode

    Auto spill adjustment, Start limit checking, Start auto zero

    Fill/None or Fill/Dump

    Two auxiliary comparators : Under Auxiliary and Over Auxiliary

    Zero tolerance checking

  • Total

    Scale print command weight total

    Target control fill weight total

  • Rate Calculation, display and report via PLC I/F

  • Remote configuration, calibration and lock keypad via COM1,COM2 and PLC I/F

  • MODEBUS-RTU supported via COM1 and COM2

  • 200Hz weight updating speed

  • 200Hz target comparison speed

  • 100Hz PLC I/F (PROFIBUS-DP) weight updating speed

  • 50Hz MODBUS-RTU updating speed

  • IP65 – Panel mount version, IP69K – Harsh version

  • Power In : 85-264VAC,49-61Hz, Maximum Power consumption less than 6W

  • Explosion-Proof: IP65 Protection, Ex d ib[ia II C Ga] IIB T6 Gb/DIP A21 TA,T6Exd IIB T6

  • Option Board

    8-Input/12-Output OC type

    8-Input/12-Output Relay type


    4~20mA analog output option : x1 or x2

    CC-Link option board

    PROFINET option board

    EtherNet/IP option board

  • Operating Environment Conditions

    Operating Temperature: -100℃∼400℃; Humidity: 10%∼95% No Condensation

    Storage Temperature: -400℃∼600℃; Humidity: 10%∼95% No Condensation

Weighing Indicator Specifications:

Accuracy ClassIII
CMC Approval150,000d, 6000e(Approved)
Display128×64 green OLED dot matrix graph display
Update Speed60ms
Status DisplayTare,Net,Motion,Zero,Unit,PLC
20 KeysF key,Tare/Clear,Zero,Print,10 digit keys
Power On/OffNone
Keypad LockCan be locked via local input or remote communication(MODBUS-RTU,MODBUS-TCP,PROFIBUS-DP)
Scale Basic Functiona
Calibration2-point with testing weight or no testing(CalFree)
Scale ProcessTare,Zero,Auto Zero,Motion, Auto Tare, Auto Clear,Auto Print
InputsOption 8 Inputs,Can be assigned remote inputs for remote host(PLC or DCS)
OutputsOption 12 Outputs,Can be assigned remote outputs for remote host(PLC or DCS)
OthersDisplay gross weight, net weight, rate
Load Cell
Exciting Voltage5V DC, max 150mA
Load Cell NumberMax 10 x 350Ω or 24 x 1100Ω
Connect Type4- wired or 6-wired , Cable:274mR/m2
Communication I/F
Serial Port2 ports:COM1-RS232, COM2-RS232/485
MODBUS-RTU,Continuous output weight,Demand input & output
PROFINETConnect to Siemens PLC,report integer weight data & floating weight data
EtherNET/IPConnect to Rockwall PLC,report integer weight data & floating weight data
MODBUS-RTUSupport, Integer & Floating weight data
Analog Outputtwo chanel 4-20mA output, 16-bit DAC
PROFIBUS-DPInteger and floating data output,100Hz updating speed
3GSD inside,totally compatible to PANTHER & IND131/331
CC-LINKfor Mitsubishi PLC,totally compatible to PANTHER & IND131/331
Application PAC
Basic Weighing2-speed target control:Filling & dumping control(Over/Under/Over)
Batching PACUp to 8 materials, Sequence Filling/ Random Filling
Checking Weighing PACBoth photoelectricity and weight input are available for checking weighing,Support classify output:up to 8 ranges
Bagging PACWeigh-Hopper Bagging/No-Weigh-Hopper Bagging/In-continuous-weighing totalization Bagging
Filling PACNo-Gun-Control Filling / Gun-Control Filling

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