Dual-Master Outputs Temperature Controller is an industrial process control instrument designed with measurement and control technology. Dual-Master Outputs Temperature Controller features high measurement and control accuracy, as well as a power-on alarm exemption function.

Full 5-digit data display enables real-time insight into each process control parameter, with a display range of ±99999.

Dual communication channels: one for MODBUS RTU communication and one for MODBUS TCP Ethernet communication.

Communication data supports the 16-bit integer standard. When the data range exceeds 16 bits, an offset address method is used to realize 32-bit integer data reading and writing, achieving 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 according to requirements. By combining relays with DO (Digital Output) applications, up to 13 alarm channels can be implemented.

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)

01/

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

02/

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	96×48×130mm
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. Notes on Key Industrial Terminology
Derivative-first control	A PID optimization strategy where the derivative calculation is applied only to the process value (PV) rather than the deviation between PV and set value (SV). This minimizes output fluctuations caused by sudden SV changes, enhancing control stability.
Passive dry contact input	A signal input mode that requires no external power supply, transmitting on/off status via contact opening/closing (e.g., limit switch signals). It offers strong anti-interference performance and is widely used in industrial control systems.
Open-collector output	A digital output structure where the terminal connects to a transistor's collector. An external pull-up power supply is needed to generate a high-level signal, commonly used for driving low-power devices or enabling signal interaction between instruments.

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