3 SPECIFICATIONS

MELSEC-Q

(2) Output signals

Device No.

Signal name

Description

 

Operating

(1)

This turns ON when A/D conversion is enabled/disabled, or when averaging

 

 

processing specification, the settings for the average time or number of times (when

Y9

condition setting

 

 

averaging processing is specified) is enabled.

 

request

 

 

(2)

See the X9 column for ON/OFF timing.

 

 

 

 

[In offset/gain setting mode]

 

 

(1)

This turns ON when the value for the adjusted offset/gain settings are registered in

 

 

 

the A/D converter module.

 

User range write

(2)

See the XA column for ON/OFF timing.

YA

 

See Section 4.6 for offset/gain settings.

request

 

 

[In normal mode]

 

 

 

 

(1)

This signal turns ON when the user range is restored.

 

 

(2)

Refer to the field of XA for the ON/OFF timing.

 

 

 

Refer to Chapter 7 for user range restoration.

 

 

(1)

This turns ON when changing the channel for which offset/gain settings are to be

YB

Channel change

 

performed.

request

(2)

See the XB column for ON/OFF timing.

 

 

 

 

See Section 4.6 for offset/gain settings.

 

Maximum value/

(1)

The maximum and minimum values stored in buffer memory addresses 30 to 45

 

 

(Un\G30 to Un\G45) are cleared by setting the maximum and minimum value reset

YD

minimum value

 

 

request (YD) to ON.

 

reset request

 

 

(2)

See the XD column for ON/OFF timing.

 

 

YF

Error clear request

(1)

This turns ON when a write error is cleared.

 

 

(2)

See the XF column for ON/OFF timing.

POINT

When the User range writing request (YA) is turned ON in the normal mode with

A/D conversion enabled, the A/D converter module restores the user range.

Offset/gain setting mode flag (XA)

User range writing request (YA)

During restoration Restoration

User range restoration processing

A/D conversion completed flag

completed

(Buffer memory address 10: Un\G10)

Digital output value

(Buffer memory addresses 11 to 18: Un\G11 to 18)

During user range restoration: A/D conversion stop, A/D conversion completed flag (buffer memory addresses 10: Un\G10) OFF, digital output value held as previously

After user range restoration: A/D conversion resumed (when user range setting is used, A/D conversion is resumed at the restored offset/gain setting value.)

3 - 16

3 - 16

Page 33
Image 33
Mitsubishi Electronics Q68ADI, Q68ADV Output signals, A/D converter module, This turns on when a write error is cleared

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.