Outline - Mitsubishi Electric FX3G User Manual

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
FX -4DA (4-channel Analog Output)
3U
1.

Outline

This chapter outlines the FX
1.1 Outline of Functions
FX -4DA is an analog special function block which is connectable to the FX
3U
PLC to convert 4-channel digital signal from the PLC to analog signal (voltage/current).
*1
1) Up to 8 units can be connected to the FX
(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
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.
FX /FX Series PLC
3G 3U
FX /FX Series PLC
3GC 3UC
Program

FROM (FNC 78)

TO (FNC 79)

BFM direct
specification (U\G)
Refer to the system configuration shown in the FX
check the number of connectable units and to configure the entire system.
*1. Up to 7 units can be connected to the FX
*2. This function is only available for FX
PLC User's Manual - Analog Control Edition
-4DA.
3U
System
*1
Up to 8 units connect to the FX
(including other types of special function blocks)

FX -4DA
3U
24V
D/A
Analog data
Inverter etc.
Transmission direction
*2
3U
/FX /FX /FX Series PLC.
3G 3GC 3U 3UC
-4DA buffer memory (BFM) in FX
3U
/FX /FX /FX Series PLC
3G 3GC 3U 3UC
FX -4DA
3U
24V
D/A
Buffer memory
BFM#0
BFM#3098
/FX /FX /FX
3G 3GC 3U 3UC
-32MT-LT(-2) PLC.
3UC
/FX PLCs.
3UC
1 Outline
1.1 Outline of Functions
/FX /FX /FX
3G 3GC 3U 3UC
3U
Point and section to be
referred to
 Number of connectable units
To check the connectable PLC

model number, refer to
Section 1.3.
For a detailed description of

wiring, refer to Chapter 3.
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.
User's Manual - Hardware Edition to
A
B
Series
C
-4DA to
D
E
F
G
H
I
J
E-3