Features; Functions Added By Function Version C - Mitsubishi Q64RD User Manual

1 OVERVIEW

1.1 Features

1

1.2 Functions Added by Function Version C

Item
Online module change
Mode switching that does
not require PLC CPU to be
reset
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(1) 4 channels of temperatures measured by one module
One Q64RD module can measure temperatures of four channels.
It can also convert the detected temperature measurement values into scaling
values (ratios (%)).
(2) Setting of conversion enable/disable
You can make a conversion enable/disable setting for each channel. Disabling
unused channels for conversion reduces sampling time.
It also prevents unnecessary disconnection detection on unused channels.
(3) Platinum temperature-measuring resistors conforming to JIS
Standards usable
You can use two different platinum temperature-measuring resistors (Pt100,
JPt100) conforming to the JIS Standards.
You can also select the platinum temperature-measuring resistor type for each
channel using GX Developer.
(4) Disconnection detection
The disconnection of a platinum temperature-measuring resistor or cable can be
detected on each channel.
(5) Selection of sampling processing/time averaging processing/count
averaging processing
As a conversion processing method, you can choose sampling processing, time
averaging processing or count averaging processing on each channel.
(6) Error compensation by offset/gain value setting
Error compensation can be made by setting offset and gain values on each
channel.
As the offset and gain values, you can make selection from user settings and
factory settings.
(7) Warning output
If the temperature detected is outside the preset measurement range, an warning
can be output on each channel.
(8) Optional utility package (GX Configurator-TI) available
Use of the utility package is not required, but using the utility package, you can
make initial and automatic refresh settings on the screen, reducing sequence
programs and facilitating checking of the setting and operating statuses.
Ther functions added Added by the function Version C Q64RD are listed below.
You can change the module without stopping the system.
Using the mode switching setting (buffer memory addresses 158, 159:
Un\G158, Un\G159) and operation condition setting request (Y9), the
module is switched between the normal mode and offset/gain setting
mode without the PLC CPU being reset.
Using the dedicated instruction (G.OFFGAN), the module is switched
between the normal mode and offset/gain setting mode without the
PLC CPU being reset.
Function overview
MELSEC-Q
Reference section
Chapter 7
Section 3.4.118
Appendix 2.1
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