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DST-28300 color LCD PID adjustment controller

Classification:

Color LCD Multichannel Control Series

The DST-28300 series color adjustment paperless recorder adopts the real artificial intelligence calculation formula, and the instrument starts the self-tuning function, which can automatically find the optimal parameters according to the characteristics of the controlled object to achieve good control effect without manual tuning parameters. The temperature control accuracy basically reaches ± 0.1 ℃, no overshoot or undershoot, reaching the international advanced level. 24 universal input (configurable selection input: standard voltage, standard current, thermocouple, thermal resistance, frequency, millivolt, etc.). With 8-loop control, it can be equipped with 18 alarm outputs or 12 analog outputs, RS232/485 communication interface, Ethernet interface, micro printer interface, USB interface and micro SD card socket. Can provide sensor power distribution; It has powerful display function, real-time curve display, real-time control display, historical curve recall, bar graph display and alarm status display.

Keywords: Isolator

7-inch 800*480 dot matrix widescreen TFT high-brightness color graphic liquid crystal display, LED backlight, clear picture, wide viewing angle, high-speed, high-performance 32-bit ARM microprocessor, built-in embedded operating system, short picture response time, real-time monitoring, display, recording and alarm 10 M Ethernet standard RJ45 interface, support Mod Bus-TCP communication protocol, suitable for out-of-band local area network or valve position control function, can cooperate with various actuators to carry out PD adjustment control, alarm control and data acquisition for electric heating equipment, electromagnetic and electric valves
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Product Manual
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  • Technical parameters
  • Structural outline drawing
  • Ordering Guide

  • General technical parameters

    Measurement input
    Input signal Up to 12 channels of isolated universal signal input, the isolation voltage between channels is greater than 250VAC, and the isolation voltage between channels and ground is greater than 500VAC.
    Signal Type Full input signal
    Accuracy ±0.2%FS
    Sampling period 1 second
    Storage capacity Internal Fash memory capacity 64 M Byte
    Recording time 12 channels, 64 M Byte capacity. (Continuous recording without power supply)
    Record Interval 1 second 2 seconds 3 seconds 4 seconds 5 seconds. 6 seconds 7 seconds 8 seconds. 9 seconds
    Record length 24 days 48 days 97 days. 145 days 364 days 728 days 1456 days 2912 days 5825 days
    Calculation formula: recording time (days) 64 × 1024 × 1024 × recording interval (s)
    Number of channels × 2 × 24 × 3600
    Note: Calculation of the number of channels: the program divides the number of channels into five gears: 4, 8, 16, 32 and 64. When the meter channel counts between the two gears, the large number is used as the calculated number of channels.)
    Analog output: 4 ~ 20mA (load resistance ≤ 3809), 0 ~ 20mA (load resistance ≤ 3809), 0 ~ 10mA (load resistance ≤ 7609), 1~5V (load resistance ≥ 250 k9), 0~5V (load resistance ≥ 250 k9), 0~10V (load resistance ≥ 10kΩ)
    Alarm output: up to 18 normally open contacts of alarm relay are output, with contact capacity of 3A/250VAC (resistive load).
    Power distribution: transmitter power distribution, rated voltage 24VDC, maximum current 250mA.
    Communication interface: isolated RS232 and RS485 interface, communication baud rate is 1200, 2400, 4800, 9600, 19200, 57600bps optional.
    Power supply: voltage range 100-240VAC, frequency: 50-60Hz;12-36V0C; maximum power consumption: 20VA
    Working conditions: working temperature:-10~50 ℃; humidity: 10 ~ 90% (no condensation)

    Note: DST-28600 has a cumulative range: 0~9999999999/automatic judgment of saturated steam and superheated steam

     

    Display screen

     

    1
    Real-time curve: freely combined display curve and curve color
    1
    Bar graph screen: displays the measured value in the form of a bar graph, and at the same time
    It can also display information such as channel number, engineering unit and alarm status.
    1
    Digital display screen: display real-time measurement values, but also display
    Information such as channel number, engineering unit and alarm status
    1
    History screen: can be viewed forward or backward saved in memory
    The historical data
    1
    Alarm list: display the latest channel alarm time,
    Information such as reporting time and alarm status
    1
    Print screen: by setting the start time and end
    Time to print the curve and data for this period of time.
    1
    Backup screen: by setting the start time and end
    Time to back up the data for this period of time
    1
    Configuration screen: used to view and modify the parameters of each configuration
    Number

  • 1

    Selection Guide

    ① Number of input channels (Note 1) ② Number of control output channels (Note 2) ③ Number of transmission output channels (Note 2) ④ Number of alarm output channels (Note 2) ⑤ Power supply
    Code Input channel Code Output channel Code Output channel Code Alarm channel Code Voltage range
    01
    02
    03
    .
    .
    .
    23
    24    		 1 input
    2-way input
    3-way input
    .
    .
    .
    23 input
    24 input    		 X No output X
    01
    02
    03
    .
    .
    .
    11
    12    		 No output
    1-way output
    2-way output
    3-way output
    .
    .
    .
    11-way output
    12-way output    		 X
    01
    02
    03
    .
    .
    .
    17
    18    		 No output
    1 Limit alarm
    2 Limit alarm
    3 Limit alarm
    .
    .
    .
    17 limit alarm
    18 limit alarm

    A


    D

    		 AC85～264V
    (50/60HZ)
    DC12～36V
    I01
    .
    .
    I08    		 1~8 analog control outputs
    K01
    .
    .
    K08    		 1~8 relay control output
    S01
    .
    .
    S08    		 1~8 solid state relay drive
    Voltage output (12V/30mA)
    ⑤ Additional functions (all the following functions can be selected, separated by "/", and unselected functions can be omitted)
    Communication output Print function Feed output For instruments with records
    Code Communication interface (communication protocol) Code Print Interface Code Feed output SB transfer function SD card expansion function Ethernet communication function
     D1
     D2    		 RS485 communication interface (Modbus RTU)
    RS232 communication interface (Modbus RTU)    		 D3 RS232C print interface P DC24V Code Transfer function Code SD Card Expansion Code Ethernet communication
    U USB card transfer
    (U disk)    		 SD SD Card Expansion
    (SD card)    		 E Ethernet communication

    Note 1: In the number of 24 input channels, there are at most 8 PID control inputs, and the remaining channels can be used as measurement display channels;

    For example: the user needs 6-way PID control and 3-way measurement display, that is, the number of input channels is 9.

    Note 2: analog control output relay control output solid state relay drive voltage output ≤ 8;

    Number of control output channels Number of transmission output channels Number of alarm output channels ≤ 18.

     

    Model selection example

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