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4 Analog Output
4.1 Analog Output Procedures
A
Common Items
B
FX
3U
-4AD
FX
3UC
-4AD
C
FX
3U
-4AD-ADP
D
FX
3G
-2AD-BD
E
FX
3U
-4DA
F
FX
3U
-4DA-ADP
G
FX
3G
-1DA-BD
H
FX
3U
-3A-ADP
I
FX
3U
-4AD-PT
-ADP
J
FX
3U
-4AD-PTW
-ADP
FX
3G
/FX
3U
/FX
3UC
PLC User's Manual - Analog Control Edition
FX3U-4DA (4-channel Analog Output)
4. Analog Output
This chapter describes the minimum programming necessary for analog output by the FX3U-4DA.
Follow the procedure below to confirm that correct analog values can be output.
4.1 Analog Output Procedures
1 Unit number check
Unit numbers from 0 to 7 will be assigned to the special function units/blocks starting from the left.
When the units/blocks are connected to the FX
3UC
-32MT-LT(-2) PLC, the unit numbers from 1 to 7
are assigned. Check the unit number assigned to the FX
3U
-4DA.
2 Output mode (BFM #0) setting
Depending on the analog signal generator to be connected, set the output mode (BFM #0) for each
channel.
Use hexadecimal numbers for output mode setting. Set the corresponding channel digit to the
output mode setting value specified in the following table:
→ For a detailed description of the standard output characteristics, refer to Section 2.4.
→ For a detailed description of the output mode (BFM #0), refer to Subsection 5.4.1.
Setting
value
Output mode Analog output range Digital input range
0 Voltage output mode -10V to +10V -32000 to +32000
1
Voltage output
analog value mV specification mode
-10V to +10V -10000 to +10000
2 Current output mode 0mA to 20mA 0 to 32000
3 Current output mode 4mA to 20mA 0 to 32000
4
Current output
analog value μA specification mode
0mA to 20mA 0 to 20000
F Channel not used
Main unit
(FX
3U
Series
PLC)
Input/output
extension
block
Special
function block
Special
function block
Input/output
extension
block
Special
function unit
Unit
number: 0
Unit
number: 1
Unit
number: 2
H
ch4
ch3
ch2
ch1