F-17
4 Programming
4.1 Writing of D/A Conversion Data
FX
3S
/FX
3G
/FX
3GC
/FX
3U
/FX
3UC
PLC User's Manual - Analog Control Edition
FX3U-4DA-ADP (4-channel Analog Output)
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
4. Programming
This chapter describes how to create programs that can output the analog data using the 4DA-ADP.
4.1 Writing of D/A Conversion Data
1) The input digital data will be converted into analog data and then output to the terminals.
2) If data is stored in the special devices, the averaging time can be set, and the output mode can be
specified.
3) Special auxiliary relays (10 points) and special data registers (10 points) are assigned automatically
starting from the adapter nearest the main unit.
→ For a detailed description of special device assignment, refer to Section 4.2.
•FX
3S Series PLC
•FX
3G/FX3GC Series PLC
The analog special adapter nearest to the main unit is counted as the 1st analog special adapter, and the
next adapter as the 2nd analog special adapter. However, in this case, do not include the connector
conversion adapter and the communication special adapter.
*1. The second special adapter is not available in the FX
3G Series PLC (14-point and 24-point type).
*2. A connector conversion adapter is required to connect the FX
3U-4DA-ADP to the FX3G Series PLC.
FX
3S
Series PLC
Communi-
cation
special
adapter
Sequence
Program
Special devices
Special auxiliary relays:
M8280 to M8289
Special data registers:
D8280 to D8289
FX
3U
-4DA
-ADP
FX
3S
-CNV
-ADP
D/A
FX
3G
/FX
3GC
Series PLC
*2
2nd
*1
1st
Communi-
cation
special
adapter
Sequence
Program
Special devices
Special auxiliary relays:
M8280 to M8289
Special data registers:
D8280 to D8289
Special auxiliary relays:
M8290 to M8299
Special data registers:
D8290 to D8299
FX
3U
-4DA
-ADP
FX
3U
-4DA
-ADP
D/A
D/A
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