MicroSmart Series

36

Programmable Logic Controllers

Analog Input Specifications (2)

Part Number

FC4A-J4CN1, FC4A-J8C1

FC4A-J4CN1

FC4A-J8AT1

Input Signal

Voltage Input

Current Input

Thermocouple

Resistance

Thermometer

NTC Thermistor

PTC Thermis-

tor

Input Range

0 to 10V

4 to 20mA

Type K (0 to 1300ºC)

Type J (0 to 1200ºC)

Type T (0 to 400ºC)

Pt100, Pt1000 3-wire type (–100

to 500ºC)

Ni100, Ni1000 3-wire type (–60

to 180ºC)

–50 to +150ºC

Input Impedance

1 MΩ mini-

mum

12 Ω (FC4A-J4CN1)

0.9 MΩ minimum

—

—

100Ω (FC4A-J8C1)

—

—

—

Input Detection Current

—

—

—

0.1mA

0.1mA

Sampling Duration Time

FC4A-J4CN1:

5ms maximum

1ms maximum

FC4A-J8C1: 1ms maximum

—

—

Sampling Repetition Time

FC4A-J4CN1:

5ms maximum

10ms × channels

FC4A-J8C1: 1ms maximum

—

—

Total Input System Transfer Time

FC4A-J4CN1:

40ms/ch + 1 scan time

10ms/ch + 1 scan time

FC4A-J8C1: 6ms/ch + 1 scan time

—

—

Input

Single-ended input

Operating Mode

Self-scan

Conversion Method

∑ Δ type ADC (FC4A-J4CN1), Successive approximation register method (FC4A-J8C1, FC4A-J8AT1)

Maximum Error at 25ºC

—

±0.005% of full scale /ºC

Plus Reference Junction Compensa-

tion Accuracy

—

—

—

±2ºC maximum

—

Temperature Coefficient

±0.005% of full scale/ºC

Repeatability after Stabilization Time

±0.5% of full scale

±0.5% of full scale /ºC

Non-linearity

±0.04% of full scale

Non-linear

Maximum Error

±1% of full scale

±1% of full scale

Digital Resolution

50000 increments (16 bits)

Type K: Approx. 24000

increments (15 bits)

Type J: Approx. 33000

increments (15 bits)

Type T: Approx. 10000

increments (14 bits)

Pt100: Approx. 6400 increments

(13 bits)

Pt1000: Approx. 64000 increments

(16 bits)

Ni100: Approx. 4700 increments

(13 bits)

Ni1000: Approx. 47000 increments

(16 bits)

Approx. 4000 increments (12 bits)

Output Value of LSB

0.2mV

0.32μA

Type K: 0.058ºC

Type J: 0.038ºC

Type T: 0.042ºC

Pt100: 0.086ºC

Pt1000: 0.0086ºC

Ni100: 0.037ºC

Ni1000: 0.0037ºC

30Ω

Data Type in Application Program

Default: 0 to 50000

Default: 0 to 4000

Optional: –32768 to 32767

Temperature: C, ºF

—

—

Temperature: ºC, ºF

Resistance: 0 to 10000

Monotonicity

Yes

Input Data Out of Range

Detectable

Maximum Temporary Deviation

during

Electrical Noise Tests

Accuracy is not assured when noise is applied.

Input Filter

Software selectable

Cable

Twisted pair shielded cable is recom-

mended for improved noise immunity

—

Twisted pair shielded cable is

recommended for improved noise

immunity

Crosstalk

2 LSB maximum

Isolation

Between input and power circuit: Isolated

Between input and internal circuit: Photocoupler-isolated