Function List - Mitsubishi Q64AD-GH User Manual

3 SPECIFICATIONS

3.2 Function List

Item
A/D conversion
enable/disable setting
A/D conversion method
Maximum and
minimum values hold
function
Input signal error
detection function
Warning output function
A/D conversion starting
time setting function
(Q62AD-DGH only)
Supply power ON/OFF
function
(Q62AD-DGH only)
Online module change (1) The module can be changed without the system being stopped.
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Table 3.3 lists the functions of the A/D converter modules.
Table 3.3 Function list
(1) Specifies whether to enable or disable the A/D conversion for each
channel.
(2) The conversion speed is 10ms regardless of the number of conversion
enabled channels.
(1) Sampling processing
The A/D conversion for analog input values is performed successively for
each channel, and the digital output value is output upon each conversion.
(2) Averaging processing
(a) Time averaging
A/D conversion is averaged in terms of time on a channel basis and a
digital average value is output.
(b) Count averaging
A/D conversion is averaged in terms of count on a channel basis and a
digital average value is output.
(c) Move averaging
The specified number of digital output values measured per sampling time
are averaged.
(3) Primary delay filter
A digital output value is smoothed according to the preset time constant.
(1) The maximum and minimum values of the digital output values is retained
in the module.
(1) The voltage/current outside the setting range is detected.
(1) Process alarm
A warning is output if a digital output value falls outside the setting range.
(2) Rate alarm
A warning is output if the varying rate of a digital output value falls outside
the preset varying rate range.
(1) Setting the A/D conversion starting time allows A/D conversion to be
started at the point when the output of the 2-wire transmitter stabilizes.
(1) The power supply to the 2-wire transmitter can be switched ON/OFF
channel by channel.
(2) Power is supplied to the channel set for "Conversion enable" in the A/D
conversion enable/disable setting (buffer memory address 0: Un\G0).
Function
MELSEC-Q
Reference section
Section 3.4.2
Section 3.2.1
Section 3.2.2
Section 3.2.3
Section 3.2.4
Section 3.2.5
Section 3.4.2
Chapter 7
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