High speed conversion | Mitsubishi Electronics Q68ADI, Q68ADV, Q64AD

1OVERVIEW

MELSEC-Q

1 OVERVIEW

This User's Manual describes the specifications, handling and programming methods	1

for the Q64AD analog-digital converter module (hereinafter referred to as the Q64AD),
Q68ADV analog-digital converter module (hereinafter referred to as the Q68ADV), and
Q68ADI analog-digital converter module (hereinafter referred to as the Q68ADI), which
are used in conjunction with MELSEC-Q Series CPUs.
In this manual, the Q64AD, Q68ADV, and Q68ADI are collectively referred to as the
A/D converter modules.

1.1 Features

(1) Select the type of module according to the application.

• Q64AD	...........	4 channels, where the voltage input or current input can be
• Q64AD		4 channels, where the voltage input or current input can be
		selected for each channel.

•Q68ADV ........ 8 channels, all of which are voltage input.

•Q68ADI .......... 8 channels, all of which are current input.

(2)High speed conversion

Conversion is performed at a high speed of 80 ∝ s/channel. Also, the temperature drift compensation function can be performed using a processing time of "conversion time for all channels + 160 s".

(3) High degree of accuracy

The degree of accuracy for the conversion process is ± 0.1% (When the ambient temperature is 25 ± 5 °C).

(4) Changing the resolution mode

The resolution mode can be changed according to the application, and digital- value resolution settings of 1/4000, 1/12000 or 1/16000 can be selected.

(5) Changing the input range

The input range 1 can easily be set from the GX Developer.

1: Input range refers to the type of offset/gain settings. The most frequently used range is set as the default but the user can also set the offset/gain.

(6) Easy settings using the utility package

A utility package is sold separately (GX Configurator-AD).

The utility package is not a required item. However, it can be used to set initial settings and automatic refresh settings on screen, reduce sequence programs, and check settings and operating status.

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Q68ADV, Q68ADI, Q64AD specifications

Mitsubishi Electronics, a renowned leader in automation technology, has developed advanced analog input modules that play a crucial role in numerous industrial applications. Among them, the Q64AD, Q68ADI, and Q68ADV models stand out with their impressive features and capabilities tailored for precise data acquisition and control.

The Q64AD module is designed for high-performance analog signal processing. It offers up to 16 channels of differential input, making it suitable for applications requiring multiple sensor readings simultaneously. The resolution of 16 bits enables accurate data capture, ensuring that subtle variations in process variables, such as temperature or pressure, are detectable. One of its key advantages is the high-speed sampling capability, allowing data collection at rates of up to 100 milliseconds per channel, essential for real-time monitoring in fast-paced environments.

In contrast, the Q68ADI model enhances the versatility of the analog input system. It includes built-in isolators, providing additional protection against noise and interference commonly found in industrial settings. This isolation feature improves the reliability of sensor readings, especially in harsh environments where electrical noise can impact performance. Furthermore, the Q68ADI supports both voltage and current input types, making it adaptable to various sensor configurations, such as thermocouples and RTDs, expanding its usability across different applications.

The Q68ADV module takes versatility a step further by integrating advanced diagnostic features. This model offers a range of additional functions, including built-in fault detection and self-diagnosis capabilities that identify issues before they escalate into significant problems. It also features temperature compensation and linearization algorithms, which enhance the accuracy of reading from thermocouples and other temperature sensors. The Q68ADV module is ideal for applications demanding high reliability and stringent performance standards, making it indispensable in industries like pharmaceuticals and food processing.

All three models are designed to seamlessly integrate with Mitsubishi's PLC systems, ensuring smooth communication and data exchange. They support various protocols, making them compatible with a wide range of devices and systems. Collectively, the Q64AD, Q68ADI, and Q68ADV modules exemplify Mitsubishi Electronics' commitment to delivering high-quality, reliable, and innovative solutions in industrial automation, empowering businesses to achieve greater efficiency and operational excellence.

Mitsubishi Electronics Q68ADI, Q68ADV, Q64AD High speed conversion, High degree of accuracy

Models: Q68ADV Q68ADI Q64AD