Overview; Features - Mitsubishi Q62DA User Manual

1 OVERVIEW

1 OVERVIEW
1

1.1 Features

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This User's Manual describes the specifications, handling and programming methods
for the Q62DA type digital-analog conversion module (hereinafter referred to as the
Q62DA), the Q64DA type digital-analog conversion module (hereinafter referred to
as the Q64DA), the Q68DAV type digital-analog conversion module (hereinafter
referred to as the Q68DAV) and the Q68DAI type digital-analog conversion module
(hereinafter referred to as the Q68DAI) which are used in conjunction with MELSEC-
Q series CPU module (hereinafter referred to as the PLC CPU).
In this manual, the Q62DA, Q64DA, Q68DAV and Q68DAI are collectively referred to
as the D/A (Digital-Analog) conversion modules.
(1) Available models
• Q62DA ........ 2 channels: Voltage or current output can be selected for each
• Q64DA ........ 4 channels: Voltage or current output can be selected for each
• Q68DAV ........8 channels: All of which are voltage output.
• Q68DAI ........ 8 channels: All of which are current output.
(2) High-speed conversion processing
Conversion processing is performed at a speed of 80
(3) High degree of accuracy
The conversion accuracy 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 output range
The output range 1 can easily be changed using GX Developer .
1 The output range refers to the type of offset/gain settings. The most
frequently used range is set as the default but the user can also specify their
own offset/gain settings.
(6) Synchronous output function
This function sets a constant time (120
the digital value is written from the PLC CPU. Highly accurate analog control can
be achieved by combining this function with a constant cycle execution type
program for the PLC CPU or the constant scan function 2.
2 The constant scan function executes the sequence program within a fixed
time interval.
(7) Analog output HOLD/CLEAR function
This function is set to either retain or clear the analog output value when the CPU
module is in the STOP status or when a stop error occurs.
channel.
channel.
s) until the analog value is output after
MELSEC-Q
s/channel.
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