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3. CONNECTION WITH PLC
3.1 Connection with PLC
The FX2N-4AD-TC unit can be connected to the PLCs as follows. Restrictions apply to the maximum
number of connectable units, depending on the DC24V/DC5V Power Supply capacities and the Main Unit/
Special Function Unit types. For details, refer to the respective PLC manual.
FX2N/FX3U : The maximum connectable units is 8.
FX3UC*1 : The maximum connectable units is 8.
To connect the FX2N-4AD with the FX3UC main unit, FX2NC-CNV-IF or FX3UC-1PS-5V is
required.
FX2NC : The maximum connectable units is 4.
To connect the FX2N-4AD-TC with the FX2NC main unit, FX2NC-CNV-IF is required.
FX1N : The maximum connectable units is 8.
FX0N : The maximum connectable units is 4.
*1 Up to 7 units can be connected to an FX3UC-32MT-LT PLC.
3.2 Special function block numbers
Other special units of blocks that use FROM/TO commands, such as analog input blocks, analog output
blocks and high-speed counter blocks, can be directly connected to the main unit of the PLC or to the right
side of other extension blocks or units.
4. WIRING
FX -16EX
X000-X027
Y000-Y027
X030
-X047
2N FX -48MR-ES/UL 2N FX -4AD 2N
No.2
2N FX -4AD-TC
X050-X067
Y030-Y047
2N FX -32ER 2N FX -4DA
FX -48MR-ES/UL 2N
POWER
A/D
24V
FX -4AD 2N
POWER
D/A
24V
FX -4DA 2N
No.1 No.0
POWER
24V
A/D
1
IN 0
7
2
3
4
5
6
1
7
2
3
4
5
6
Special block Special block Special block
X0
X5
7 2456 13 0
16 11 15 14 17 10 12 13
14 17 15 10 12 13
7 2456 13 0
16 11
OUT
IN
L X11 X13 X15 X17
X6 X10 X12 X14 X16
24+ N
COM X4
X7
COM4 COM2
Y4
Y5
Y6
Y7 COM3
Y10
Y11
Y12
Y13 COM1
Y0
Y1
Y2
Y3
Y14
Y15
Y16
Y17
X3
X2
X1
POWER
7 627 20 22 23 24 25 26 21
16 17
14 17 15 10 12 13
7 2456 13 027 20 22 23 24 25 26 21
16 11
IN
LX5X7 X13 X15 X17 X21 X23 X25
X4 X6 X10 X14 X16 X20 X22 X24
24+ N
COM X0
X1
X2
COM4
Y24
Y25
COM5
Y27 COM2
Y4
Y5
Y6
Y7 COM3
Y10
Y13 COM1
Y0 Y2
Y3
Y14
Y15
Y20
Y21
Y22
Y23
Y26
POWER
T.V
CPU.E
PROG.E
Connection example