User`s manual

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MELSEC-A

1 OVERVIEW

This user's manual explains the specifications, handling, programming methods and

others of Type AJ65VBTCU-68ADV analog-digital converter module (hereafter

abbreviated to the " AJ65VBTCU-68ADV") and Type AJ65VBTCU-68ADI analog-

digital converter module (hereafter abbreviated to the “AJ65VBTCU-68ADI”) which is

used as a remote device station of a Control & Communication Link (hereafter

abbreviated to "CC-Link") system.

In this manual, the AJ65VBTCU-68ADV and AJ65VBTCU-68ADI are generically

referred to as the AJ65VBTCU-68ADV/ADI.

The AJ65VBTCU-68ADV/ADI converts the analog signals (voltage or current input)

from the PLC's external source to a 16-bit encoded binary data digital value.

1.1 Features

This section gives the features of the AJ65VBTCU-68ADV/ADI.

(1) Selection of model according to application

AJ65VBTCU-68ADV......Voltage input on all eight channels.

AJ65VBTCU-68ADI .......Current input on all eight channels.

(2) High accuracy

This module performs A/D conversion at the accuracy of ±0.3% relative to the

maximum value of the digital output value at the operating ambient temperature

of 0 to 55°C, or at ±0.2% relative to the maximum value of the digital output value

at the operating ambient temperature of 25±5°C.

(3) Input range selectable per channel

You can choose the analog input range per channel to change the I/O conversion

characteristics.

(4) High resolution of 1/±4000

By changing the input range, you can choose and set the digital value resolution

to either 1/4000 or 1/±4000 (Only AJ65VBTCU-68ADV) to provide high-resolution

digital values.

(5) Designation of sampling processing or average processing

As a conversion method, you can specify sampling processing or average

processing per channel.

(6) More channels than those of the conventional A/D converter

modules

The number of channels is twice greater than that of the conventional CC-Link

A/D converter module (AJ65SBT-64AD).