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MELSEC-Q
3 SPECIFICATIONS
3 SPECIFICATIONS
3.1 Performance Specifications
The following are the performance specifications of the Q64RD/Q64RD-G.
3.1.1 Specifications of Q64RD
Item Specifications
Number of channels
4 channels
Temperature
conversion value
16-bit, signed binary data (-2000 to 8500: Value to the first decimal place 10)
32-bit, signed binary data (-200000 to 850000: Value to the third decimal place 1000)
Output
Scaling value
16-bit, signed binary
Usable platinum RTD
Pt100(JIS C1604-1997,IEC 751 1983), JPt100(JIS C1604-1981)
Pt100
-200 to 850
Measured
temperature
range
JPt100
-180 to 600
Pt100
-20 to 120 / -200 to 850
Range
changing
JPt100
-20 to 120 / -180 to 600
Ambient temperature
0 to 55
0.25% (Accuracy relative to maximum value)
Accuracy
1
Ambient temperature
25 5
0.08% (Accuracy relative to maximum value)
Resolution 0.025
Conversion speed
40ms/channel
2
Number of analog input points
4 channels/module
Temperature detecting output current
1mA
E
2
PROM write count
Max. 100,000 times
Specific isolated area
Isolation
method
Dielectric withstand
voltage
Isolation
resistance
Between platinum temperature-
measuring resistor input and
programmable controller power supply
Photocouple
r isolation
1780VrmsAC/
3 cycles
(Altitude 2000m)
Between platinum temperature-
measuring resistor input channels
No isolation
-
10M
Ω
or more
using 500VDC
isolation
resistance
tester
Isolation
Wire break detection
Yes (Each channel independent)
3
Number of occupied I/O points
16 points (I/O assignment: Intelligent 16 points)
Connection terminals
18-point terminal block
Applicable wire size
0.3 to 0.75mm
2
Applicable crimping terminals
1.25-3 R1.25-3 (Sleeved crimping terminals are unusable)
Cables between Q64RD and platinum
RTD
Refer to Section 3.1.3.
Internal current consumption (5VDC)
0.60A
Weight
0.17kg
Outline dimensions
98(H) 27.4(W) 90(D)mm
1: The selection ranges and accuracies have the following relationships.
Selection Range
Ambient Temperature
Pt100 and JPt100 :
-20 to 120
Pt100 :
-200 to 850
JPt100 :
-180 to 600
0 to 55
0.3
2.125
1.5
25 5
0.096
0.68
0.48
2: The conversion speed is a period from when a temperature is input and converted into a corresponding digital value until the value is
stored into the buffer memory.
When two or more channels are used, the conversion speed is "40ms number of conversion enabled channels".
3: For output in the case of disconnection detection, select 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". (Refer to Section 3.2.2.)
3
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