WindO/I-NV4 User’s Manual 30-19
3 Analog I/O Modules
30
Expansion Modules
â– Thermistor settings
When NTC thermistor is selected for the FC6A-J8CU1 signal type, the following parameters must be set.
The characteristic of NTC thermistor is that the resistance decreases as the temperature rises. The analog modules
measure the resistance of the thermistor and calculate the temperature based on above three parameters.
The measurable range of the resistance of NTC thermistor is 100 Ω to 200,000 Ω. The range of temperature that can
be calculated is -90°C to 150°C. Select NTC thermistor that functions within those ranges.
â– Data
Data refers to the input analog values converted to digital values at the interval of the sampling time.
The data is not guaranteed when the Satus is a value other than "0".
*1 When the sampling time is set to 30 ms, the modules may be more easily affected by commercial power supply noise (50/60
Hz noise) and fluctuations in input values may become larger. If there are large fluctuations in input values, change the
sampling time to 120 ms.
*2 Information are described in the instruction sheet for the thermistor to use.
FC6A-J4CN1
0 to 10 V 100 ms/10 ms
-10 to +10 V 100 ms/10 ms
0 to 20 mA 100 ms/10 ms
4 to 20 mA 100 ms/10 ms
Thermocouple 104 ms
Resistance thermometer 104 ms
FC6A-J4CH1Y Thermocouple
120 ms/30 ms
*1
FC6A-J8CU1
Thermocouple 104 ms
NTC/PTC thermistor 104 ms
PTC thermistor (threshold) 104 ms
Resistance measurement 104 ms
FC6A-L06A1
0 to 10 V 1 ms/10 ms
-10 to +10 V 1 ms/10 ms
0 to 20 mA 1 ms/10 ms
4 to 20 mA 1 ms/10 ms
FC6A-L03CN1
0 to 10 V 100 ms/10 ms
-10 to +10 V 100 ms/10 ms
0 to 20 mA 100 ms/10 ms
4 to 20 mA 100 ms/10 ms
Thermocouple 104 ms
Resistance thermometer 104 ms
Type Signal Type Sample Time
Parameter Description Range
R0
The thermistor resistance in "T0" °C (Ω)
*2
0 to 65,535
T0
Temperature (°C)
*2
-32,768 to 32,767
B
Thermistor B constant
*2
-32,768 to 32,767
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