FX2N-4AD-PT SPECIAL FUNCTION BLOCK
USER’S GUIDE
JY992D65601E
This manual contains text, diagrams and explanations which will guide the reader in the correct installation
and operation of the FX
2N
-4AD-PT special function block and should be read and understood before
attempting to install or use the unit.
Further information can be found in the FX PROGRAMMING MANUAL(ΙΙ) and FX
0N
/FX1N/FX2N/FX
2NC
/
FX
3U
/FX
3UC
SERIES HARDWARE MANUAL.
Guidelines for the Safety of the User and Protection of the FX2N-4AD-PT
special function block.
This manual should be used by trained and competent personnel. The definition of such a person or
persons is as follows:
a) Any engineer using the product associated with this manual, should be of a competent nature,
trained and qualified to the local and national standards. These engineers should be fully aware of
all aspects of safety with regards to automated equipment.
b) Any commissioning or service engineer must be of a competent nature, trained and qualified to
the local and national standards.
c) All operators of the completed equipment should be trained to use this product in a safe and
coordinated manner in compliance to established safety practices.
Note:
The term ‘completed equipment’ refers to a third party constructed device which contains or uses
the product associated with this manual.
Notes on the Symbols Used in this Manual
At various times throughout this manual certain symbols will be used to highlight points of information
which are intended to ensure the users personal safety and protect the integrity of equipment.
1) Indicates that the identified danger
WILL
cause physical and property damage.
2) Indicates that the identified danger could
POSSIBLY
cause physical and property
damage.
• Under no circumstances will Mitsubishi Electric be liable or responsible for any consequential damage
that may arise as a result of the installation or use of this equipment.
• All examples and diagrams shown in this manual are intended only as an aid to understanding the
text, not to guarantee operation. Mitsubishi Electric will accept no responsibility for the actual use of
the product based on these illustrative examples.
• Owing to the very great variety in possible applications for this equipment, you must satisfy yourself as
to its suitability for your specific application.
1. INTRODUCTION
• The FX2N-4AD-PT analog block amplifies the input from four platinum temperature sensors (Pt 100, 3
wire, 100 Ω) and converts the data into 12 bit reading’s stored in the main unit. Both Centigrade (°C)
and Fahrenheit (°F) can be read. Reading resolution is 0.2°C to 0.3°C / 0.36°F to 0.54°F.
• The FX
2N
-4AD-PT can connected to the FX0N/FX1N/FX2N/FX
2NC
/FX3U/FX
3UC
series Programmable
Controllers (PLC).
• All data transfers and parameter setups are adjusted via software control of the FX
2N
-4AD-PT; by use
of the TO/FROM applied instructions in the PLC.
• The FX
2N
-4AD-PT occupies 8 I/O points on the PLC expansion bus. The 8 I/O points can be allocated
from either inputs or outputs. The FX
2N
-4AD-PT draws 30mA from the 5V rail of the main unit or
powered extension unit.
2. EXTERNAL DIMENSIONS
3. CONNECTION WITH PLC
3.1 Connection with PLC
The FX2N-4AD-PT 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.
FX
2N
/FX3U: The maximum connectable units is 8.
FX
3UC
*1
: The maximum connectable units is 8.
To connect the FX
2N
-4AD with the FX
3UC
main unit, FX
required.
FX
2NC
: The maximum connectable units is 4.
To connect the FX
2N
-4AD-PT with the FX
2NC
main unit, FX
FX
1N
: The maximum connectable units is 8.
FX
0N
: The maximum connectable units is 4.
*1 Up to 7 units can be connected to an FX
3UC
-32MT-LT PLC.
3.2 Special function block numbers
Other special units of blocks that use FROM/TO instructions, 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
4.1 Wiring
c
The cable of the Pt 100 sensor or a twisted shielded
cable should be used for the analog input cable. This
analog input cable should be wired separately from
power lines or any other lines which may induce noise.
The three wire method improves the accuracy of the
sensors by compensating voltage drops.
d
If there is electrical noise, connect the FG (frame
ground) terminal with the ground terminal. (In CH1,
there is no FG terminal. Use FG terminal of other
channels.)
e
Connect the ground terminal on the FX
with the grounded terminal on the main unit. Use
grounding on the main unit, if grounding is possible.
f
Either an external or the 24V built-in supply in the PLC
may be used.
For additional data regarding EMC considerations
please see section 10.
POWER
CH1
24+
24-
L+
L-
4 (0.16)
4 (0.16)
55 (2.17)
80 (3.15)
90 (3.54)
87 (3.43)
9 (0.35)
DIN rail
mounting slot
35 (1.38)
Mounting holes
4.5 (0.18) dia.
Extension cable
and connector
I-
Weight: Approx. 0.3 kg (0.66 lbs) Dimensions: mm (inches)
FX -16EX
X000-X027
Y000-Y027
X030
-X047
2N
FX -48MR-ES/UL
2N
FX -4AD
2N
2N
FX -4DA
POWER
A/D
24V
FX
-4AD
2N
POWER
D/A
24V
FX -4DA
2N
No.1
No.0
1
IN 0
7
2
3
4
5
6
POWER
1
IN 0
7
2
3
4
5
6
Special block
Special block
762720 2223 24 25 2621
1617
14 171510 1213
724561302720 2223 24 25 2621
1611
IN
LX5X7
X13 X15 X17 X21 X23 X25
X4 X6 X10
X14 X16 X20 X22 X24
24+N
COM
X0X1X2
COM4
Y24
Y25
COM5
Y27COM2
Y4Y5Y6
Y7
COM3
Y10
Y13COM1
Y0 Y2
Y3
Y14
Y15
Y20
Y21
Y22
Y23
Y26
POWER
T.V
CPU.E
PROG.E
FX2N-48MR-ES/UL
FX2N-16EX
Pt100
1
shielded
CH1
L+
L-
I-
FG
Pt100
CH4
5V
4.7K4.7K
100K
100K
AG
L+
24+
24-
DC/DC
converter
AG
AG
5V
+15V
-15V
PLC
Extension cable
D grounding
(100
:
or less)
3
4
DC24V±10% 50mA
2
FX2N-4AD-PT
L-
I-
FG
1
shielded
) and FX
0N
/FX1N/FX2N/FX
-4AD-PT
2N
ΙΙ
cause physical and property
°
C / 0.36°F to 0.54°F.
3U
3UC
/FX
series Programmable
2N
-4AD-PT; by use
2NC
°
2. EXTERNAL DIMENSIONS
Weight: Approx. 0.3 kg (0.66 lbs) Dimensions: mm (inches)
87 (3.43)
Mounting holes
4.5 (0.18) dia.
DIN rail
mounting slot
35 (1.38)
80 (3.15)
90 (3.54)
/
9 (0.35)
Extension cable
and connector
CH1
4 (0.16)
24+
24-
I-
L+
L-
4 (0.16)
55 (2.17)
POWER
24+
24-
I-
CH1
L+
L-
FG
CH2
I-
L+
L-
FG
CH3
I-
L+
L-
FG
CH4
24V
I-
L+
LED
A/D
LED
L-
24V
A/D
Terminal screws M3 (0.12)
3. CONNECTION WITH PLC
3.1 Connection with PLC
The FX2N-4AD-PT 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.
2N
FX
/FX3U: The maximum connectable units is 8.
*1
3UC
FX
: The maximum connectable units is 8.
To connect the FX
2N
-4AD with the FX
3UC
main unit, FX
2NC
-CNV-IF or FX
required.
2NC
FX
1N
FX
0N
FX
*1 Up to 7 units can be connected to an FX
: The maximum connectable units is 4.
To connect the FX
2N
-4AD-PT with the FX
: The maximum connectable units is 8.
: The maximum connectable units is 4.
3UC
-32MT-LT PLC.
2NC
main unit, FX
2NC
-CNV-IF is required.
3.2 Special function block numbers
Other special units of blocks that use FROM/TO instructions, 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.
IN 0
1
2
3
4
5
6
X4 X6 X10
X0X1X2
24+N
FX2N-48MR-ES/UL
Y4Y5Y6
X14 X16 X20 X22 X24
X13 X15 X17 X21 X23 X25
724561302720 2223 24 25 2621
IN
14 171510 1213
1611
762720 2223 24 25 2621
1617
Y14
Y10
COM4
COM3
Y13COM1
Y15
Y7
COM
LX5X7
Y0 Y2
Y3
2N
FX -48MR-ES/UL
X000-X027
Y000-Y027
7
POWER
2N
FX -4DA
IN 0
1
2
3
4
5
6
7
FX -4DA
Special block
POWER
2N
No.1
24V
D/A
POWER
POWER
T.V
PROG.E
CPU.E
2N
FX
Y24
Y20
Y22
Y26
COM5
Y25
Y27COM2
Y21
Y23
2N
FX -4AD
Special block
No.0
FX2N-16EX
-4AD
24V
A/D
2N
FX -16EX
X030
-X047
X0
COM X4
L
N
24+
COM2Y4Y5Y6Y7 COM3
COM1Y0Y1Y2Y3
FX -32ER
2N
X050-X067
Y030-Y047
X5
X3X2X1
X6 X10 X12 X14 X16
X11 X13 X15 X17
X7
IN
OUT
Y12
Y10
COM4
Y13
Y11
72456130
14 171510 12 13
1611
72456130
1611 1514 1710 12 13
Y14
Y16
Y15
Y17
4. WIRING
4.1 Wiring
C)
1
Pt100
shielded
1
Pt100
shielded
DC24V±10% 50mA
D grounding
(100
or less)
:
4
2
3
PLC
Extension cable
CH1
CH4
FG
FG
24+
24-
L+
L-
I-
L+
L-
I-
5V
4.7K4.7K
100K
100K
AG
DC/DC
converter
FX2N-4AD-PT
c
The cable of the Pt 100 sensor or a twisted shielded
cable should be used for the analog input cable. This
analog input cable should be wired separately from
power lines or any other lines which may induce noise.
The three wire method improves the accuracy of the
sensors by compensating voltage drops.
d
If there is electrical noise, connect the FG (frame
5V
ground) terminal with the ground terminal. (In CH1,
AG
+15V
AG
-15V
there is no FG terminal. Use FG terminal of other
channels.)
e
Connect the ground terminal on the FX2N-4AD-PT unit
with the grounded terminal on the main unit. Use
grounding on the main unit, if grounding is possible.
f
Either an external or the 24V built-in supply in the PLC
may be used.
55 (2.17)
FX
2N
-4AD-PT
3UC
-1PS-5V is
POWER
2N
FX -4AD-PT
Special block
POWER
No.2
4.2 Using crimp terminations
less than
6.2mm (0.24 )
Use M3 (0.12)
less than
6.2mm (0.24 )
5. INSTALLATION NOTES AND USAGE
5.1 General specification
Item Specification
General specifications Same as those for the main unit
Dielectric withstand voltage 500V AC, 1min (between all terminals and ground)
5.2 Power supply specification
Item Specification
Analog circuits 24V DC ± 10%, 50mA
Digital circuits 5V DC, 30mA (internal power supply from the main unit)
5.3 Performance specification
Analog Inputs
Item
Analog input signal
Current to sensor 1 mA. sensor: 100
Compensated range -100°C to +600
Digital output
Minimum resolvable
temp.
Overall accuracy
Conversion speed 60ms (15 ms for 4 channels)
Analog Inputs continued...
24V
A/D
Conversion
Characteristics
Miscellaneous
Isolation
Number of occupied I/O points
Both °C and
Platinum Temperature Pt 100 sensors (100
CH3, CH4), (DIN 43760, JIS C 1604-1997, JIS C 1604-1981)
-1000 to 6000 -1480 to +11120
12-bit conversion 11 data bits +1 sign bit 16-bit binary with sign
0.2°C to 0.3
± 1% full scale (compensated range)
See section 7.0 for special EMC considerations
+6,000
-100°C
Item Specification
For additional data regarding EMC considerations
please see section 10.
-CNV-IF or FX
3UC
-1PS-5V is
2NC
-CNV-IF is required.
2N
-4AD-PT unit
CH4
CH3
L+
FX
2N
-4AD-PT
L-
L-
L+
I-
CH1
24+
24-
L-
CH2
L-
L+
L+
55 (2.17)
Terminal screws M3 (0.12)
24V
LED
A/D
LED
FG
FG
I-
FG
I-
I-
No.2
2N
FX -4AD-PT
X050-X067
Y030-Y047
2N
FX -32ER
POWER
24V
A/D
Special block
X0
X5
72456130
1611 1514 1710 12 13
14 171510 12 13
72456130
1611
OUT
IN
X11 X13 X15 X17
X6 X10 X12 X14 X16
24+
N
COM X4
X7
COM4
COM2Y4Y5Y6Y7 COM3
Y10
Y11
Y12
Y13
Y0Y1Y2
Y3
Y14
Y15
Y16
Y17
X3X2X1
POWER
4.2 Using crimp terminations
• Use crimp terminals as indicated on the left.
• Secure the terminal using a tightening torque of between 0.5 and 0.8
N
⋅
m.
• Wire only to the module terminals discussed in this manual. Leave all
others vacant.
5. INSTALLATION NOTES AND USAGE
5.1 General specification
5.2 Power supply specification
5.3 Performance specification
Analog Inputs
Analog Inputs continued...
Miscellaneous
Item Specification
General specifications Same as those for the main unit
Dielectric withstand voltage 500V AC, 1min (between all terminals and ground)
Item Specification
Analog circuits 24V DC ± 10%, 50mA
Digital circuits 5V DC, 30mA (internal power supply from the main unit)
Item
Centigrade Fahrenheit
Both °C and °F are available by reading the appropriate buffer memory (BFM).
Analog input signal
Platinum Temperature Pt 100 sensors (100 Ω), 3-wire, 4-channel (CH1, CH2,
CH3, CH4), (DIN 43760, JIS C 1604-1997, JIS C 1604-1981)
Current to sensor 1 mA. sensor: 100 Ω Pt 100
Compensated range -100°C to +600°C -148°F to +1112°F
Digital output
-1000 to 6000 -1480 to +11120
12-bit conversion 11 data bits +1 sign bit 16-bit binary with sign
Minimum resolvable
temp.
0.2°C to 0.3°C 0.36°F to 0.54°F
Overall accuracy
± 1% full scale (compensated range)
See section 7.0 for special EMC considerations
Conversion speed 60ms (15 ms for 4 channels)
Conversion
Characteristics
Item Specification
Isolation
Photo-coupler isolation between analog and digital circuits.
DC/DC converter isolation of power from the main unit.
No isolation between analog channels.
Number of occupied I/O points
The block occupies 8 I/O points
(can be either inputs or outputs)
less than
6.2mm (0.24 )
Use M3 (0.12)
less than
6.2mm (0.24 )
+6,000
-100°C
-1,000
+600°C
Temp. input°C
Digital
output
+11,120
-148°F
-1,480
+1,112°F
Temp. input°F
Digital
output
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