24 Segment Curves Industrial Process Controller adopts a 24-bit processing chip, featuring high measurement and control accuracy. It also offers more extended functions, with a modular design for more flexible configuration.

24 Segment Curves Industrial Process Controller supports 9 process profiles, and each profile can be set with 24-segment program curves, enabling 24-segment curve-based process control. Practical functions such as relay action output and 5-group PID call can be implemented in the 24-segment curves as needed, meeting complex requirements for curve process control. It supports grouped output limiting, allowing the setting of time and specified output restriction percentage to protect the load.

This program process control instrument is equipped with dual-output control functions for heating and cooling.

The 2 auxiliary input channels have the following functions: heater wire break alarm, remote DCS (Distributed Control System) remote setting of set value (SV), high-low temperature switching between dual sensors, and dual-sensor redundancy.

There are 2 groups of optically isolated digital input, which can realize flexible application switching for various application functions.

This process control instrument supports input functions for 32 types of common industrial signal sensors.

Control output types include: relay, analog linear signal, solid-state relay output (transistor), and thyristor (which can directly drive electrical equipment with a current of less than 5A).

This program control instrument has a very user-friendly human-machine interface design, with simple and convenient key operation. During the execution of the program curve, it can display functions such as the current remaining time and the current set value.

Local editing and input of the program curve are simple and convenient; the program segment curves have a power-off data retention function and a power-on alarm exemption function.

It adopts a control algorithm that is adaptable to various operating conditions.

Optional Modbus RTU and TCP communication protocols are available.

Features

Measurement accuracy of Class 0.1, with a 5-digit nixie tube display and a status display window
Standard MODBUS RTU communication protocol, optional Ethernet interface
High-speed master-slave control instrument online communication function, simplifying process curve settings and enabling automatic SV synchronization
Grouped PID and grouped PID limiting, suitable for loads with various characteristics
Functions including remote analog setting, communication control, and heater wire break protection
Supports 32 common industrial signals such as PT1000 input
Adopts an improved DK PID algorithm for more accurate control
Equipped with sensor power supply function and anti-interference design
Enhanced valve position control instrument, supporting both valve position control with feedback and valve position control without feedback
Supports custom 8-point curve input correction, non-standard custom sensors, and automatic switching between high-temperature and low-temperature sensors

01/

Inputs

K (thermocouple type); S (thermocouple type)

R (thermocouple type); T (thermocouple type)

E (thermocouple type); J (thermocouple type)

B (thermocouple type); N (thermocouple type)

WRe3-WRe25 (thermocouple type); WRe5-WRe26 (thermocouple type); Cu50 (thermal resistor type);

PT100 (thermal resistor type); PT1000 (thermal resistor type); 0～80Ω (resistance signal); 0～400Ω (resistance signal); 0～5000Ω (resistance signal); 0～10mA (current signal); 0～20mA (current signal); 4～20mA (current signal); 0～20mV (voltage signal); 0～100mV (voltage signal); -20～+20mV (voltage signal); -100～+100mV (voltage signal); 0～1V (voltage signal); 0～2V (voltage signal); 0～5V (voltage signal); 1～5V (voltage signal);

0～10V (voltage signal); 2～10V (voltage signal); -5V～+5V (voltage signal); -10V～+10V (voltage signal)

02/

Outputs

4-20mA (analog current output)

0-20mA (analog current output)

0-10mA (analog current output)

Relay output

Transistor solid-state output

Thyristor output

03/

None

Optional voltage output

Communication (Optional)

Standard MODBUS RTU communication

Standard Modbus TCP Ethernet

04/

Alarm
2 channels of relay output

Other Detailed Parameters

Control Cycle	50mS/100mS
Measurement Accuracy	0.1% FS (using 24-bit AD)
Sampling Rate	20Hz/10Hz
Control Output
Analog signals	4-20mA, 0-20mA (<500Ω), 0-10mA (<1kΩ)
Relay	2A (250V AC)
Solid-state relay (transistor)	22V 20mA
Thyristor	6A 250V AC
LED Nixie Tube	3-row display
Row 1 (PV)	5 digits
Row 2 (SV)	5 digits
Row 3 (information window)	3 digits
Signal Measurement Input Impedance	≥500kΩ for voltage signals, ≤120Ω for current signals, ≥500kΩ for thermocouples Resistance measurement adopts a 3-wire system; the resistance of each signal transmission wire shall not exceed 10Ω Standard MODBUS RTU communication protocol (2-wire RS485)
Parity check	None, odd, even
Communication speed	4800BPS, 9600BPS, 19200BPS
Communication address range	1~247
Power Supply	86~260V AC (47~63Hz)
Isolation Voltage	2300V AC for 1 minute (isolation between input, output, and power supply)
Model Selection & Dimensions	DK2404T: External Dimensions: 96×96×109mm Cutout Dimension: 92×92mm

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