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3 SPECIFICATIONS
3.2 Function List
Item
Temperature conversion
function
Temperature conversion
system
Conversion
enable/disable function
Range changing
function
Temperature-measuring
resistor selection
function
Disconnection detection
function
Conversion setting for
disconnection detection
function
Warning output function
Scaling function
Offset/gain setting
function
Online module change
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The following table lists the Q64RD/Q64RD-G functions.
This function allows temperature data to be imported by connecting a
temperature-measuring resistor.
Temperature data are 16-bit signed binary (-2000 to 8500), 32-bit signed
binary (-200000 to 850000) and stored into buffer memory.
(1) Sampling processing
Values input by each channel are successively converted into temperature
values and output as measured temperature value.
(2) Averaging processing
(a) Time averaging
Temperature conversion is averaged by time on each channel and an
averaged value is stored.
(b) Count averaging
Temperature conversion is averaged by count on each channel and an
averaged value is stored.
(c) Moving average
Measured temperature values, which are taken at every sampling
interval for the specified number of times, are averaged.
(3) Primary delay filter
By a preset time constant, digital output values are smoothed.
This function specifies whether temperature conversion is enabled or disabled
on each channel.
Setting temperature conversion enable/disable reduces the processing time of
This function changes the measured temperature range.
This function sets the type of the temperature-measuring resistor per channel.
This function detects the disconnection of the connected temperature-
measuring resistor on each channel.
For values to be stored in the CH
memory addresses 11 to 14, 54 to 61: Un\G11 to 14, Un\G54 to 61) in the
case of disconnection detection, any of "Value immediately before
disconnection", "Up scale (maximum value of measured temperature range +
5% of measured temperature range)", "Down scale (minimum value of
measured temperature range – 5% of measured temperature range)" or
"Given value" can be selected.
This function outputs a warning when the temperature is equal to or more
than the warning output upper limit value or is equal to or less than the
warning output lower limit value.
This function can convert a measured temperature value into a preset range
ratio (%) and import it into buffer memory.
This function compensates for an error of a measured temperature value.
A module change is made without the system being stopped.
Description
measured temperature value (buffer
MELSEC-Q
Refer To
Section 3.4.7,
3.4.16
Section 3.2.1
Section 3.4.3
Section 4.5
Section 4.5
Section 3.4.14
Section 3.2.2
Section 3.4.12,
3.4.13
Section 3.4.15,
3.4.17, 3.4.18
Section 3.4.20, 4.6
Chapter 7
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Troubleshooting
