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1 Outline
1.1 Outline of Functions
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)
1. Outline
This chapter outlines the FX3U-4DA.
1.1 Outline of Functions
FX3U-4DA is an analog special function block which is connectable to the FX3G, FX3U or FX3UC Series PLC to
convert 4-channel digital signal from the PLC to analog signal (voltage/current).
1) Up to 8
*1
units can be connected to the FX3G/FX3U/FX3UC Series PLC.
(including the other special function blocks).
2) Each channel has either Voltage Output or Current Output specification.
3) The block converts the digital values stored in the FX
3U-4DA buffer memory (BFM) in FX3U-4DA to
analog signals (voltage/current).
4) A predetermined output pattern is set as data table, and analog signal can be output according to the
data table.
*1. Up to 7 units can be connected to the FX
3UC-32MT-LT(-2) PLC.
*2. This function is just available for FX3U and FX3UC PLCs.
FX3UC Series PLC
Number of connectable units
• • • • • •
For a detailed description of
wiring, refer to Chapter 3.
• • • • • •
To check the connectable PLC
model number, refer to
Section 1.3.
Point and section to be
referred to
System
• • • • • •
• • • • • • • • •
Buffer memory
BFM#0
BFM#3098
• • • • • •
For a detailed description of
analog data output programs,
refer to Chapter 4, 7, and 8.
For a detailed description of
the buffer memory, refer to
Section 5.3, and Section 5.4.
To use FROM/TO instruction
or to directly specify the BFM,
refer to Section 5.2.
Inverter etc.
Analog data
Refer to the system configuration shown in the FX
3G
/FX
3U
/FX
3UC
User's Manual - Hardware Edition to check the
number of connectable units and to configure the entire system.
Transmission direction
Program
• FROM(FNC 78)
• TO(FNC 79)
• BFM direct
specification(U\G)
*2
Up to 8
*1
units connect to the FX
3G
/FX
3U
/FX
3UC
Series PLC
(including other types of special function blocks)
• • •
• • • • • •
• • • • • •
FX
3G
/FX
3U
Series PLC
FX
3U
-4DA
24V
D/A
FX
3U
-4DA
24V
D/A