Outline; Built-In Variable Analog Potentiometer Function; Outline Of Functions; Applicable Plc - Mitsubishi Electric MELSEQ FX3S Series User Manual

FX Series Programmable Controllers
3S
User's Manual - Hardware Edition
11.1

Outline

This section explains handling of the built-in variable analog potentiometer and built-in analog input.
11.2

Built-in variable analog potentiometer function

11.2.1 Outline of functions

The main unit has two built-in variable analog potentiometers function (shown in the figure below).
The value increases from 0 to 255 when the variable analog potentiometer is turned clockwise, and will be
automatically written to a special data register of the PLC.

11.2.2 Applicable PLC

The following models have built-in variable analog potentiometers.
FX 3S -10MR/ES
FX 3S -14MR/ES
FX 3S -20MR/ES
FX 3S -30MR/ES

11.2.3 Special data register

The current value of each variable analog potentiometer is stored in special data registers shown below.
Variable analog potentiometer
VR1 (Upper side): Variable analog potentiometer 1
VR2 (Lower side): Variable analog potentiometer 2
→ For the built-in variable analog potentiometer function, refer to Section 11.2.
→ For the built-in analog input function, refer to Section 11.3.
Variable analog potentiometer
enlarged view
Applicable PLC
FX 3S -10MT/ES FX 3S -10MT/ESS
FX 3S -14MT/ES FX 3S -14MT/ESS
FX 3S -20MT/ES FX 3S -20MT/ESS
FX 3S -30MT/ES FX 3S -30MT/ESS
D8030 (Integer from 0 to 255)
D8031 (Integer from 0 to 255)
VR1
VR2
FX 3S -10MR/DS FX 3S -10MT/DS
FX 3S -14MR/DS FX 3S -14MT/DS
FX 3S -20MR/DS FX 3S -20MT/DS
FX 3S -30MR/DS FX 3S -30MT/DS
Data register to store current value
11 Use of Built-in Analog
11.1 Outline
12
13
14
15
16
FX 3S -10MT/DSS
FX 3S -14MT/DSS
FX 3S -20MT/DSS
FX 3S -30MT/DSS
17
99
11
A
B
C