Mitsubishi Electronics Q68ADI ユーザーズマニュアル

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MELSEC-Q

1 OVERVIEW

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

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

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.