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HVAC System activated through an SCADA

HVAC System activated through an SCADA

Introduction As a continuation of the Air-conditioning system post, in today´s newsletter Opiron suggests to expand the HVAC system controlled through the Touchberry Pi Panel PC and Ardbox Relay from IndustrialShields. As the last post, the suggested SCADA that will run on the Touchberry Pi is the following: myscadatechnologies.com Summarizing the previous post, we designed a system that was able to activate the air conditioning with a relay. In order to expand the system, we will include the following sensors to have a complete automatic…

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Controlling temperature with a got exchanger through a modulating valve in chemical industry

Controlling temperature with a got exchanger through a modulating valve in chemical industry

Introduction In industrial applications, the need to control temperature is usual. A typical element used and designed with this purpose is the hot exchanger, which interchanges two or more fluids with different temperatures.In this post we are going to explain how to implement a temperature control through a modulating valve that will regulate the amount of steam that enters the hot exchanger, in order to heat the chemical process. To fulfill the specified requirements, Opiron electronics has developed a PID algorithm…

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Feeding a packaging machine with a frequency driver with Arduino

Feeding a packaging machine with a frequency driver with Arduino

In the dairy industry, packaging machines are used to package food in containers such as yogurt, milk, etc. They are usually integrated into more complex systems, and they are fed by a tank that contains the product (usually milk). In this project we will design a system composed of a tank with milk, a packaging machine, a valve to open and close the way to the machine, and a PID formed by a flow meter and a pump controlled by…

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RTC library for Arduino based PLC (DS1307 RTC)

RTC library for Arduino based PLC (DS1307 RTC)

The Industrial Shields PLCs use original Arduino boards. Then the PLCs can be used as individually Arduino boards by The Arduino IDE. To use the original boards let the users to programm the PLCs by others programs which can program Arduino boards too.  The Ethernet family PLCs (M-Duino) use an original Arduino Mega. The 20IOs PLC (Ardbox) use an original Arduino Leonardo. You can use different models of RTC with the PLCs. This example shows how tu use the DS1307 RTC board….

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Ardbox Analog

Ardbox Analog

  The Ardbox Analog is a PLC based on Open Source Hardware including Arduino Leonardo board. It has a 16MHz crystal oscillator and a micro USB connection.   Power This PLC can be powered at 12 – 24Vdc   Memory The Ardbox Relay has 32KB (4KB used for the bootloader). It also have 2.5KB of SRAM and 1KB of EEPROM (Wich can be read and written with the EEPROM library) all from the Arduino Leonardo.   Input and Output It has…

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Ardbox Relay

Ardbox Relay

The Ardbox Relay is a PLC based on Open Source Hardware including Arduino Leonardo board. It has a 16MHz crystal oscillator and a micro USB connection.   Power This PLC can be powered at 12 – 24Vdc   Memory The Ardbox Relay has 32KB (4KB used for the bootloader). It also have 2.5KB of SRAM and 1KB of EEPROM (Wich can be read and written with the EEPROM library) all from the Arduino Leonardo.   Input and Output It has…

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Ardbox Software Interface

Ardbox Software Interface

Software Interface: Arduino IDE is compatible to program these PLCs. You must download a start code in www.industrialshields.com at product page in “document files” section and then open it with Arduino IDE. Configuration of Arduino IDE: All Ardbox PLCs use an Arduino Leonardo and you need to choose these option in Arduino IDE.

Ardbox Analog I/O Pinout

Ardbox Analog I/O Pinout

Ardbox Analog has diferent types of Inputs and Outputs. Base (common unit)   RIGHT Zone Ardbox  Connector Arduino Pin Function   A0.6 A0.5 A0.4 A0.3 A0.2 A0.1 A0.0 Q0.9 Q0.8 Q0.7 Q0.6 Q0.5 Q0.4 Q0.3 Q0.2 Q0.1 Q0.0 (-) Com 24VCOM 3 5 6 9 10 11 13 0  1 7 3 5 6 9 10 11 13 – – Analog Out Analog Out Analog Out Analog Out Analog Out Analog Out Analog Out PWM/digital Output PWM/digital Output PWM/digital Output PWM/digital Output…

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Ardbox Relay I/Os Pinout

Ardbox Relay I/Os Pinout

Ardbox Relay has diferent types of Inputs and Outputs. Left Zone: Ardbox Connector Arduino Pin Function   Left Switch See switch details –    MISO MOSI SCK RESET B A TX-PIN1 RX-PIN0 SDA-PIN2 SCL-PIN3 – – – – – – 1 0 2 3 SPI-MISO SPI-MOSI SPI-CLOCK SPI-RESET RS485 RS485 Serial/RS232 Serial/RS232 I2C/SPI SS I2C/SPI SS R1* 4 Relay 1 Out R2* 7 Relay 2 Out R3 8 Relay 3 Out Gnd 24Vdc – – Gnd Power Supply On the…

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Ardbox Relay I/0 technical details

Ardbox Relay I/0 technical details

Ardbox Relay I/0 technical details Ardbox family products Signal Vdc Maxim current consumption Digital Input 12/24 Vdc 11mA Analog/Digital Input configurable   Analog (78KΩ impedance) 0-10Vdc 50mA Digital 12/24Vdc 50mA Digital Output 12/24Vdc(1) 150mA Analog/Digital/PWM Output configurable

Ardbox Relay Communication pinout configuration

Ardbox Relay Communication pinout configuration

Ardbox Relay Communications pinout configuration Ardbox Relay PLC integrates the following communications. USB: Intrinsically available. I2C: Enable SCL and SDA connections (actual Arduino pins) with configuration switches. I0.0 and I0.1 not available. In order to implement this communication a 4.7kΩ pull-up resistor (IS.ACI2C-4.7K) is required. RS232: Enable RX and TX connections with configuration switches. 2 and I0.3 not available. RS485: Enable RE/DE/DI and RO internal pins with configuration switches. R1, R2, R5 and R6 not available. The defined Arduino Mega pins…

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Ardbox Relay Switch Configuration

Ardbox Relay Switch Configuration

Ardbox Relay can be configurated with multiple communication ports. There are two DIP Switch to configurate all of them. Switch Configuration: LEFT Zone Arduino Pin OFF* ON   7 DE R1 4 RE R2 1 I0.3 RX 0 I0.2 TX 3 SCL I0.1 2 SDA I0.0 LEFT ZONE. To enable communication connections the switchs must be set to “OFF”. Set to “ON” position to enable I/Os  PLC connection.  Communications and I/Os on the chart can not work simultaneously. For exemple if…

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