Mitsubishi Electronics MELSEC-F Manuel D’Utilisation

4 Comparison of Performance Specifications

FX

3G

/FX

3U

/FX

3UC

 PLC User's Manual - Analog Control Edition

Common Items

*1.

Adjustment of the offset or gain value will not affect the resolution.

*2.

The offset and the gain should satisfy the following condition:1
1V 

≤ (Gain - Offset) ≤ 15V

*3.

The offset and the gain should satisfy the following condition:
4mA 

≤ (Gain - Offset) ≤ 32mA

Number of output points

4ch

Analog output range

-10V to +10V DC

(External load: 2k to 1M

Ω)

0mA to 20mA DC
4mA to 20mA DC

(External load: 500

Ω or less)

Offset

-5V to +5V

*1,*2

-20mA to +20mA

*1,*3

Gain

15 V or less, and

Gain - Offset 

≥ 1V

32 mA or less, and

Gain - Offset 

≥ 4mA

Digital output

With sign, 12 bits, binary

10 bits, binary

Resolution

5mV(10V

×1/2000)

*1

20

μA(20mA×1/1000)

*1

Overall accuracy

±1.0%(±200mV) for 20V full scale

±1.0%(±200μA) for 20mA full scale

Same accuracy for 4mA to 20mA output

Does not include any load fluctuation.

-

Time required for D/A 
conversion

2.1 ms (The number of selected channels will not affect this value.)

Output characteristics

Insulation method

• The photocoupler is used to insulate the analog input area from the PLC.
• The DC/DC converter is used to insulate the power supply from the analog output.
• Channels are not insulated from each other.

Number of I/O points 
occupied

8 points (Taken from either the input or output points of the PLC.)

0

+2000

+10V

-10V

-2000

z

When the output mode is set to "0":

+2

04

7

-2048

0

1000

Digital input

4mA

A

nal

og

 out

put

20mA

z

When the output mode is "2":

(The dotted line is for mode 1.)

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