Dual-Loop pid Temperature Controller is an industrial process control instrument designed with measurement and control technology. Dual-Loop pid Temperature Controller features high measurement and control accuracy, as well as a power-on alarm exemption function.
Full 5-digit data display for real-time insight into each process control parameter, capable of showing ±99999.
Dual communication: one channel for MODBUS RTU communication, and one channel for MODBUS TCP Ethernet.
Communication data supports the 16-bit integer standard. When the data range exceeds 16 bits, an offset address method is used to enable 32-bit integer data reading and writing, realizing high-precision, full-resolution real reading for process control.
Equipped with 24-bit high-speed multi-channel synchronous data acquisition and a 32-bit RISC instruction set industrial-grade microprocessor, it offers strong anti-interference capability and fast response.
The control output refresh rate is 50ms, adapting to faster control processes.
4 channels of hard-contact alarm output and program end alarm output; 9 channels of programmable DIO (Digital Input/Output) functions-each IO can be customized as input or output as needed. By combining relays with DO applications, up to 13 alarm channels can be achieved.
Supports program curve cycling.
Program curves can control the on-off output of 9 channels of open-collector digital signals.
5 groups of grouped PID output limiting control, meeting the requirements of various control working conditions.
Supports input of 47 types of industrial standard sensor signals, as well as non-standard signal input and multi-point linearization processing.
Features
TFT LCD with full 5-digit digital display
Dual MODBUS, optional industrial Ethernet, and online communication control
Dual-loop single-curve with 16-segment quick setting, supporting curve cycling
5 groups of grouped PID and grouped output limiting function, suitable for loads with various characteristics
47 types of input signals, supporting PT1000 input
Adopts improved DK PID algorithm, supporting PV differentiation and derivative-first control
Innovative 32-bit RISC instruction set industrial-grade microprocessor, with Class 0.1 measurement and control accuracy
Supports 9 channels of DIO, with programmable DI (Digital Input) and DO (Digital Output) for custom input/output functions
Supports up to 13 channels of alarm control, enabling multi-alarm and load control (e.g., liquid level control)
Inputs
Supports dual loops and input of 47 types of industrial signals:
K, S, R, T, E, J, B, N, WRe3-WRe25, WRe5-WRe26, Cu50, Pt100, Pt500, Pt1000, 0～80Ω, 0～400Ω, 0～4000Ω, 0～10mA, 0～20mA, 4～20mA, 0～20mV, 0～100mV, -20～+20mV, -100～+100mV, 0～1V, 0～2V, 0～5V, 1～5V, 0～10V, 2～10V, -5V～+5V, -10V～+10V, Cu10, Cu100, Pt10, Pt50, Pt200, JPT10, JPT50, JPT100, JPT200, JPT500, JPT1000, Ni100, Ni200, Ni500, Ni1000
Outputs
Dual-Loop Main Control Output:
4-20mA, 0-20mA, 0-10mA, Relay Output, Transistor Solid-State Output, Thyristor Output
Transmission Output:
4-20mA, 0-20mA, 0-10mA
Communication:
Supports dual communication
Standard Modbus RTU communication protocol
Standard Modbus TCP communication protocol
Alarm:
Supports 4-channel relay alarm output
Detailed Parameters
| Control Cycle | 50mS/100mS |
| Measurement Accuracy | 0.001FS (using 24-bit AD) |
| Sampling Rate | 20Hz/10Hz |
| Control Output | |
| Analog Signals | 12 BIT (True DA) – 4-20mA, 0-20mA, 0-10mA, 0-10V, 2-10V, 0-5V, 1-5V |
| Relay | 2A (250V AC) |
| Solid-State Relay (Transistor) | 22V 20mA |
| Thyristor | 3A 250V AC |
| Display Method | IPS TFT True-Color LCD |
| Signal Measurement Input Impedance |
≥500KΩ for voltage signals (≥100KΩ for 5V, 10V), ≤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 |
| 8.1 Communication | Standard MODBUS RTU protocol (2-wire RS485) |
| Parity Check | None, Odd, Even |
| Communication Speed | 4800BPS, 9600BPS, 19200BPS, 38400BPS, 57600BPS |
| Communication Address Range | 1~247 |
| 8.2 Communication | Standard MODBUS TCP protocol |
| Communication Address | 0-255 |
| Subnet Mask | 0-255 |
| Gateway | 0-255 |
| Power Supply | AC220V/DC24V |
| Isolation Voltage | 2300V AC for 1 minute (isolation between input, output, and power supply) |
| Operating Temperature | 0~50℃ |
| Storage Conditions | Temperature -40℃~80℃; Humidity 0.1-0.9RH (Relative Humidity) |
| External Dimensions | 96×96×143.5mm |
| EMC Standard | EN61326* |
| Safety Standard | IEC60950-1 |
| Protection Class | IP66 |
| Power Consumption | 12W |
| DI and DO |
The DIO function is programmable and can be defined as input (DI) or output (DO) via parameter settings. DI can only accept passive dry contact input signals. DO is an open-collector output with a load capacity of up to 200mA; an external 24V signal is required to drive intermediate relays. |
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