Mitsubishi FX series PLC temperature control

Programmable Controller (PLC): Mitsubishi A Q FX Series, FX1NC, FX1S, FX1N, FX2NC, FX2N

Mitsubishi FX series programmable controller has setting, display function (display module DM, graphic operation, terminal GOT); Abundant basic units (complete models, high-speed CPU, software components, memory capacity expansion, high-speed counters, and improvement of positioning functions); Communication functions (expansion of lightweight communication functions, correspondence with various networks, inverter operation control), etc.

I/O 16 128 points, 2 DC input types, can expand I/O. Small size, artificial intelligence operation, cost-effective.

I/O 10 30 points, AC power. There are 8 types of DC input type, DC power supply. There are 8 types of DC input types. Small size, simple operation and cost-effective.

Input/output 24 128 points, AC power. There are 6 types of DC input type, DC power supply. There are 6 types of DC input types. The input and output can be extended. High versatility, artificial intelligence operation, good cost performance.

I/O 16 256 points, DC power supply. There are 5 types of DC input types. The input and output can be extended. It is fully functional, simple to operate, and labor-saving wiring.

Input and output 16 256 points, AC power. There are 17 types of DC input type, AC power supply. There are 4 types of AC input type, DC power supply. There are 8 types of DC input types. The input and output can be extended. Fully functional and easy to operate

For this problem, you don't need a PLC at all, you can use a thermostat + sensor + a heating device.

The temperature value can also be displayed directly on the temperature control instrument. It can be displayed and adjusted as well as the settings.

Mitsubishi PLC has been widely used in China for its high performance and low performance to meet the needs of China's industrial control industry. Mitsubishi PLC has a wide range of products to meet the needs of different users. Mitsubishi Electric Corporation's PLC products mainly include the following series:

The FX1S series Mitsubishi PLC is an integrated small unit PLC. And it has complete performance and communication functions and other scalability. It is an ideal choice if you consider the installation space and cost.

The Mitsubishi PLCFX1N series is a powerful and popular PLC launched by Mitsubishi Electric. It has expandability such as extended input and output, analog control, communication, and link functions. The Mitsubishi PLCFX1N series is a PLC that is widely used in general sequence control.

The FX2N series is Mitsubishi PLC, the most advanced series in the FX family. Mitsubishi PLC offers maximum flexibility and control for factory automation applications with high-speed processing and the ability to scale with a large number of special function modules to meet individual needs.

The FX3U is Mitsubishi Electric's new third-generation Mitsubishi PLC, which may be called a small supreme product. The basic performance has been greatly improved, and the basic unit of the transistor output type has a built-in positioning function of 3 axes with a maximum of 100kHz, and a new positioning command has been added, making the positioning control function of the Mitsubishi PLCFX3U more powerful and easier to use.

The FX1NC FX2NC FX3UC Mitsubishi PLC has achieved a significant downsizing while maintaining the original powerful features.

The I-O connection reduces wiring costs and saves time considerably.

Q series Mitsubishi PLC is a large PLC launched by Mitsubishi Machinery Corporation, the CPU types include basic CPU, high-performance CPU, process control CPU, motion control CPU, redundant CPU, etc. It can meet a variety of complex control needs. With the rapid development of Mitsubishi PLC China's business, in order to better meet the high-performance and low-cost requirements of domestic users for Mitsubishi PLC Q series products, Mitsubishi Electric Automation has launched an economical Qute SET PLC, that is, a 5-slot Q00JCOU SET with a 64-point high-density hybrid unit; Another Mitsubishi PLC comes with 2 pieces of 16-point switching input and 2 pieces of 16-point switching output of 8-slot Q00JCPU-S8 SET, its performance indicators are fully compatible with Q00J, and it also fully supports GX-developer and other software, so it has an excellent cost performance.

First of all, there are two main methods of PLC temperature acquisition: an AD module + temperature transmitter + temperature sensor, which collects the signals of PT100, K couple, E couple and other temperature sensors with a temperature transmitter, and converts them into analog signal output, PLC collects them with AD module, and then calculates them into temperature values, and then processes them; The other is the temperature module + temperature sensor, such as PT module + PT100 sensor, so that the temperature value can be directly read and then processed. The first one is more cost-saving, because the AD module + temperature transmitter is not as expensive as the PT module, but because there is an extra layer of conversion, the error will increase, and it is also necessary to calculate to get the temperature value, which is inconvenient.

Then there are two main methods of PLC temperature control: one is PWM temperature control, which only needs an ordinary output port or a high-speed output port of PLC, without the need for an expansion module, PLC outputs PWM signal, and adjusts the power of heating (or refrigeration) by controlling the on-off time of the relay to achieve temperature control; The other is to use the DA module, analog output, to control the voltage regulating relay, by adjusting the voltage of the heating pipe (or refrigeration valve), to adjust the power of heating (or refrigeration) to achieve temperature control.

FX2N-8AD 8-channel current, voltage, hot couple, platinum resistance input module.

FX2N-2LC 2-channel temperature control module.

Take a look at the manual specifically.

It's good to write a program and click on the simulation to run it directly, the pulse command does not support simulation;

1. Mitsubishi PLC temperature detection module for Mitsubishi PLC temperature detection.

2. Mitsubishi PLC, also known as Mitsubish Programmable Logic Controller, is the main product of Mitsubishi Electric in Dalian. It uses a class of programmable memory for internal storage programs to perform user-oriented instructions such as logic operations, sequence control, timing, counting, and arithmetic operations, and to control various types of machinery or production processes through digital or analog inputs and outputs.

The following models of Mitsubishi PLC are commonly found in the Chinese market: FR-FX1N FR-FX1S FR-FX2N FR-FX3U FR-FX2NC FR-A FR-Q).

1. Equipped with temperature acquisition module (RTD or thermocouple).

2. Temperature intelligent instrument communication.

Just get a smart thermometer connected to the PLC and do a good job of communication.

The Mitsubishi FX series PLC cannot be debugged, because the input status and input information of the Mitsubishi FX series PLC are input from the input interface, and the CPU stores it in the working data memory or input image register. The CPU then organically combines the data and the program.

The results are stored in the output image registers or working data memory, and then output to the output interface and control external drives. The entire process is done by a program that has been written, so debugging is not possible.