Mitsubishi MELSEC-F FX3U Series User Manual

B-16
4 Analog Data Reading
4.1 Procedure for Reading Out of Analog Data
FX 3U /FX 3UC Series PLC User's Manual - Analog Control Edition
FX3UC-4AD (4-channel Analog Input)
4. Analog Data Reading
This chapter describes the minimum programming necessary for readouts of the analog data by 4AD.
Follow the procedure below to confirm that the analog data can be properly read out.
4.1 Procedure for Reading Out of Analog Data
1 Unit number check
When special function units/blocks, such as 4AD, are connected to the main unit (FX3UC Series
PLC), unit numbers will be sequentially assigned to the connected units/blocks starting from the
unit/block next to the main unit. Check the unit number assigned to 4AD.
2 Input mode (BFM #0) setting
Depending on the analog signal generator to be connected, set the input mode (BFM #0) for each
channel.
Use the hexadecimal numbers for input mode setting. Set the digit of the corresponding channel to
the input mode setting value specified in the following table:
→ For a detailed description of the standard input characteristics, refer to Section 2.4.
→ For a detailed description of the input mode (BFM #0), refer to Subsection 5.4.1.
Setting
value
Input mode
Analog input
range
Digital output range Resolution
0 Voltage input mode -10V to +10V -32000 to +32000 0.32mV
1 Voltage input mode -10V to +10V -4000 to +4000 2.50mV
2
Voltage input
Analog value direct indication mode
-10V to +10V -10000 to +10000 1.00mV
3 Current input mode 4mA to 20mA 0 to 16000 1.25µA
4 Current input mode 4mA to 20mA 0 to 4000 5.00µA
5
Current input mode
Analog value direct indication mode
4mA to 20mA 4000 to 20000 1.25µA
6 Current input mode -20mA to +20mA -16000 to +16000 1.25µA
7 Current input mode -20mA to +20mA -4000 to +4000 5.00µA
8
Current input mode
Analog value direct indication mode
-20mA to +20mA -20000 to +20000 1.25µA
F No channels used
FX 3UC -32MT
-LT
Main unit
Input/output
extension
block
Special
function block
Special
function block
Input/output
extension
block
Special
function unit
Unit number: 0
(Incorporated
CC-Link/LT)
Unit number: 1 Unit number: 2 Unit number: 3
H
ch4
ch3
ch2
ch1

Mitsubishi MELSEC-F FX3U Series Specifications

General

Brand	Mitsubishi
Model	MELSEC-F FX3U Series
Category	Controller
Language	English