Mitsubishi q64rd, User Manual

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MELSEC-Q
3 SPECIFICATIONS
3.2 Function List
The following table lists the Q64RD/Q64RD-G functions.
Item Description Refer To
Temperature conversion
function
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.
Section 3.4.7,
3.4.16
Temperature conversion
system
(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.
Section 3.2.1
Conversion
enable/disable function
This function specifies whether temperature conversion is enabled or disabled
on each channel.
Setting temperature conversion enable/disable reduces the processing time of
Section 3.4.3
Range changing
function
This function changes the measured temperature range. Section 4.5
Temperature-measuring
resistor selection
function
This function sets the type of the temperature-measuring resistor per channel. Section 4.5
Disconnection detection
function This function detects the disconnection of the connected temperature-
measuring resistor on each channel.
Section 3.4.14
Conversion setting for
disconnection detection
function
For values to be stored in the CH measured temperature value (buffer
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.
Section 3.2.2
Warning output function
This function outputs a warning if a temperature falls outside the user-set
temperature range. Section 3.4.12,
3.4.13
Scaling function
This function can convert a temperature conversion value into a preset range
ratio (%) and import it into buffer memory. Section 3.4.15,
3.4.17, 3.4.18
Offset/gain setting
function
This function compensates for an error of a temperature conversion value. Section 3.4.20, 4.6
Online module change A module change is made without the system being stopped. Chapter 7