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I designed a ladder program for an Omron PLC. 【Design Software/Equipment Environment】 - Omron PLC CJ2M-CPU34 - Omron PLC CX-Programmer ver 9.7 【External Connection Devices】*Ethernet connection - Yaskawa PLC (Yaskawa Servo Motor) MPX1312 - IAI Controller (Cylinder) RCON/RSEL - Omron Temperature Controller NX-EIC202 - Omron Safety Safety Unit GC-1000 - Hachiko Electric Touch Panel V9100iSD 【Equipment Configuration】 1. Control of the servo motor between Omron PLC and Yaskawa PLC 2. Configuration of the safety circuit between Omron PLC and Safety PLC 3. Control between Omron PLC and Touch Panel 4. Control of the temperature controller by Omron PLC

I designed a mutual communication program between Keyence PLC and robots. 【Design, Debug Software/Device Environment】 - Keyence PLC KV-8000S0 - Keyence PLC Software KV STUDIO ver.11G - Keyence Touch Panel VT5-W07 (Ethernet connection) - Keyence Touch Panel Software VT STUDIO ver.8G - Keyence Safety Unit GC-1000 (Ethernet connection) - Keyence Safety Unit Software GC-CONFIGURATOR ver+1.3.0.1 【External Connection Devices】*Ethernet connection - Mitsubishi Electric PLC Q03UDVCPU - Mitsubishi Electric Servo HG-KR053, etc. - IAI Robot, Cylinder RCP6-SA4C-WA-35P-10-50, etc. 【Device Configuration】 1. Control between Keyence PLC and Mitsubishi Servo Motor 2. Control between Keyence PLC and IAI Robot, Cylinder 3. Control between Keyence PLC and Touch Panel 4. Safety circuit configuration between Keyence PLC and Safety PLC

This is a facial device that uses superheated steam. (Our company manufactures the control board for this device.) This facial device is already in operation at a certain beauty salon. It is the world's first superheated steam steamer, which maintains an ideal humidity environment with high energy efficiency and high performance. Molecular-level tiny water particles heated to a maximum of 400 degrees. Superheated steam, which is also used in medical settings, gently penetrates the skin and provides astonishing moisturizing effects. The public relations representative also tried the steam and found that her skin became moist and her blood circulation improved. This superheated steam is said to have a virus-suppressing effect and is also utilized in medical settings.

I developed software (algorithm) to operate an LED in a gradient manner using a microcontroller. The microcontroller (RENESAS: RX220) is connected to an LED driver IC (PCA9635) via the I2C bus to illuminate the LED. To achieve a gradient illumination, while the brightness is linear, the PWM values form a curve, making the derivation of the calculation formula the biggest challenge. (Figure 1) Since the method of determining the LED brightness through loop calculations cannot start from an intermediate brightness, I was able to achieve this by pre-calculating how the brightness should change after a certain number of milliseconds and combining it with sequential calculations. (Figure 2) The RGB (red, green, blue) of the full-color LED is calculated individually.

The Panasonic PLC is a highly reliable control system used in the industrial sector. We have created a data converter that converts communication protocols between serially connected devices using the Panasonic PLC. Specifically, we implemented a data converter in the ladder program of the Panasonic PLC that allows for mutual transmission and reception of 8-bit BCD or 8-bit BCD data with different data positions and digit counts, encapsulated in decimal ASCII code communication protocols between STX and ETX. Communication between different devices requires compatible protocols. However, when there are differences in bit rates, digit counts, or data positions, data conversion becomes necessary. The serial communication protocol converter using the Panasonic PLC converts these different data formats into each other, enabling smooth data exchange. For details on the implementation of the data converter using the Panasonic PLC ladder program, please refer to the PDF.

At Messanagoya, our parent company, Kyodo Electronics Co., Ltd., showcased "LEDs that support health," and our company was responsible for the LED control software. What does supporting health mean? In our lives, sunlight plays a very important role in hormone secretion and regulating our internal rhythms. In particular, mimicking the changes in natural light that affect plant growth and human mood has garnered attention in various fields, as it may provide similar effects to sunlight even in indoor environments where it is difficult to incorporate natural light. About the control software we developed This time, we created a system that uses a microcontroller and PWM control to represent the daily changes in sunlight with LEDs of two different wavelengths. With the system we developed, it has become possible to adjust the color temperature and brightness of the LEDs while taking advantage of PWM. In the future, we aim to further develop this by using a wider variety of wavelengths of LEDs to achieve a more realistic representation of sunlight.