Mitsubishi Electric MELSEC FX3U-485ADP User manual

This manual confers no industrial property rights or any rights of any other kind,
nor does it confer any patent licenses. Mitsubishi Electric Corporation cannot be
held responsible for any problems involving industrial property rights which may
occur as a result of using the contents noted in this manual.
Warranty
Mitsubishi will not be held liable for damage caused by factors found not to be
the cause of Mitsubishi; opportunity loss or lost profits caused by faults in the
Mitsubishi products; damage, secondary damage, accident compensation
caused by special factors unpredictable by Mitsubishi; damages to products
other than Mitsubishi products; and to other duties.
For safe use
This product has been manufactured as a general-purpose part for general
industries, and has not been designed or manufactured to be incorporated in
a device or system used in purposes related to human life.
Before using the product for special purposes such as nuclear power, electric
power, aerospace, medicine or passenger movement vehicles, consult with
Mitsubishi Electric.
This product has been manufactured under strict quality control. However
when installing the product where major accidents or losses could occur if the
product fails, install appropriate backup or failsafe functions in the system.
•
•
•
HEAD OFFICE
HIMEJI WORKS
: TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
: 840, CHIYODA CHO, HIMEJI, JAPAN
Side
B
Side
A
Side
BJAPANESE ENGLISH
JY997D13801J
Safety Precaution
(Read these precautions before use.)
This manual classifies the safety precautions into two categories:
and .
Depending on the circumstances, procedures indicated by may
also cause severe injury.
It is important to follow all precautions for personal safety.
Associated Manuals
How to obtain manuals
For product manuals or documents, consult with the Mitsubishi Electric dealer
from who you purchased your product.
Indicates that incorrect handling may cause hazardous
conditions, resulting in death or severe injury.
Indicates that incorrect handling may cause hazardous
conditions, resulting in medium or slight personal injury
or physical damage.
Manual name Manual No. Description
FX3S Series
User’s Manual
- Hardware Edition
JY997D48601
MODEL CODE:
09R535
Explains the FX3S Series PLC
specifications for I/O, wiring,
installation, and maintenance.
FX3G Series
User’s Manual
- Hardware Edition
JY997D31301
MODEL CODE:
09R521
Explains the FX3G Series PLC
specifications for I/O, wiring,
installation, and maintenance.
FX3GC Series
User’s Manual
- Hardware Edition
JY997D45401
MODEL CODE:
09R533
Explains the FX3GC Series PLC
specifications for I/O, wiring,
installation, and maintenance.
FX3U Series
User’s Manual
- Hardware Edition
JY997D16501
MODEL CODE:
09R516
Explains the FX3U Series PLC
specifications for I/O, wiring,
installation, and maintenance.
FX3UC Series
User’s Manual
- Hardware Edition
JY997D28701
MODEL CODE:
09R519
Explains the FX3UC Series PLC
specifications for I/O, wiring,
installation, and maintenance.
FX3S/FX3G/FX3GC/
FX3U/FX3UC Series
Programming Manual
- Basic & Applied
Instruction Edition
JY997D16601
MODEL CODE:
09R517
Describes PLC programming for
basic/applied instructions and
devices.
FX Series
User’s Manual
- Data Communication
Edition
JY997D16901
MODEL CODE:
09R715
Explains N:N network, Parallel Link,
Computer Link, Non-Protocol
communication by RS and RS2
instructions/FX2N-232IF.
Applicable standards
FX3U-485ADP units made in June, 2005 or later comply with the EC Directive (EMC
Directive) and UL standards (UL, cUL). Further information can be found in the
following manual.
→ FX3S Series Hardware Manual (Manual No. JY997D48301)
→ FX3G Series Hardware Manual (Manual No. JY997D46001)
→ FX3GC Series Hardware Manual (Manual No. JY997D45201)
→ FX3U Series Hardware Manual (Manual No. JY997D18801)
→ FX3UC (D, DS, DSS) Series Hardware Manual (Manual No. JY997D28601)
→ FX3UC-32MT-LT-2 Hardware Manual (Manual No. JY997D31601)
Regarding the standards that relate to the main unit, please refer to either the FX
series product catalog or consult with your nearest Mitsubishi product provider.
Attention
•This product is designed for use in industrial applications.
Note
•Manufactured by: Mitsubishi Electric Corporation
2-7-3 Marunouchi, Chiyoda-ku, Tokyo, 100-8310 Japan
•Manufactured at: Mitsubishi Electric Corporation Himeji Works
840 Chiyoda-machi, Himeji, Hyogo, 670-8677 Japan
•Authorized Representative in the European Community:
Mitsubishi Electric Europe B.V.
Gothaer Str. 8, 40880 Ratingen, Germany
1. Outline
The FX3U-485ADP communication special adapter (hereinafter called 485ADP) is a
special adapter for RS-485 communication with a terminal block (European type).
The 485ADP is an isolated signal exchange unit of RS-485 serial data communication
between the PLC and an RS-485 device.
1.1 Communication Function
1.2 Incorporated Items
Verify that the following product and items are included in the package:
The label should be applied on the front of 485ADP for checking station numbers in
N:N network, computer link, etc.
1.3 External Dimensions and Part Names
Communication type Function
N:N network Data transfer connecting up to eight FX Series PLCs.
Parallel link Data transfer between two FX Series PLCs relationship
specifying master/slave station.
Computer link Data transfer between the PLC and computer (specified as
the master station) via dedicated protocol.
Non-protocol
communication
Serial communication between the PLC and an RS-485
device via non-protocol.
Inverter
communication
Controlling Mitsubishi's FREQROL inverter using inverter
communication instructions.
Product FX3U-485ADP communication special adapter
Accessories Label for indication of link station number
Installation manual (This manual)
74(2.92")
[6]
[5]
[7]
[8]
[9]
[10]
[3]
[12]
[14]
[11]
Weight: Approx. 80 g (0.18 lbs)
Special adapter
connector cover
is removed
7(0.28")
15.5
(0.65")
90(3.55") 98(3.86")
(mounting hole pitch)
106(4.18")
17.6
(0.7")
15.1
(0.6")
RDA
RDB
SDA
SDB
SG
[13]
[2]
[4]
[1]
1.4 Terminal Configuration
The terminal configuration of the RS-485 terminal on the 485ADP is shown below.
Note that the terminal configuration is different from that of the FX3U-485-BD.
1.5 Terminal Resistor Selector Switch
485ADP has a built-in terminal resistor.
A terminal resistor may be required depending on the communication type. Refer to the
following manual for the terminal resistor setting.
→ FX Series User's Manual - Data Communication Edition
1.6 Operation of Terminal Resistor Selector Switch
Use the tip of tweezers, tip of mechanical pencil, minute screwdriver, or the tool
whose tip width is about 0.8 mm (0.03") when operating the terminal resistor selector
switch.
Either 'push down' or 'push up' the switch to change the setting as indicated in the
figure above.
Confirm the clicking noise when setting the switch.
[1] DIN rail mounting groove (DIN rail: DIN46277)
[2] Name plate
[3] Special adapter slide lock:
Used to connect additional special adapters onto left side of this special adapter.
[4] Special adapter connector cover:
Remove this cover to connect additional special adapters on the left side.
[5] Direct mounting hole:2 holes of φ4.5 (0.18") (mounting screw: M4 screw)
Not used when connecting to FX3GC/FX3UC Series PLC.
[6] POWER LED (green): Lit while 5 V DC power is supplied from main unit.
[7] RD LED (red):
Lit while receiving data from connected RS-485 device.
[8] SD LED (red):
Lit while sending data to connected RS-485 device.
[9] Terminal resistor selector switch (330Ω/OPEN/110Ω)
[10] Special adapter connector:
Used to connect this special adapter to PLC main unit or special adapter.
[11] Terminal block (European type) for connecting RS-485 device
Use to connect RS-485 device to 485ADP.
[12] DIN rail mounting hook
[13] Special adapter fixing hook
[14] Special adapter connector:
Used to connect communication or analog special adapter to the left side of the
485ADP.
Signal
name Function
Signal direction
485ADP RS-485
equipment
RDA(RXD+) Receive data ←
RDB(RXD-)
SDA(TXD+) Send data →
SDB(TXD-)
SG(GND) Signal ground −
Terminal screws
RDARDBSDASDBSG
Setting terminal
resistor to 330 Ω
330 Ω
OPEN
110 Ω
Setting no
terminal resistor
330 Ω
OPEN
110 Ω
Setting terminal
resistor to 110 Ω
330 Ω
OPEN
110 Ω
330 Ω
OPEN
110 Ω
Pushing down
direction
Pushing up direction
Tool
Switch
330 Ω
OPEN
110 Ω
330 Ω
OPEN
110 Ω
Tool
2. Channel Allocation
Up to two communication ports can be added to the main unit.
Refer to the following manual for equipment that occupies communication ports.
→ FX Series User's Manual - Data Communication Edition
FX
3S
Series PLC
Communication port channels are automatically allocated.
FX3G Series PLC
Communication port channels are automatically allocated.
•40-point, 60-point type
•14-point, 24-point type
FX3GC Series PLC
Communication port channels are automatically allocated. The communication
special adapter closer to the main unit is ch1.
Main unit
(ch1)
FX
3S
-
CNV-ADP
FX3U-
485ADP
Analog
special
adapter
Main unit
(ch1)(ch2)
Analog
special
adapter
Analog
special
adapter
FX
3G
-
CNV-ADP
FX3U-
485ADP
FX3U-
485ADP
Main unit
Communication
expansion board (ch2)
(ch1)
FX
3G
-
CNV-ADP
FX3U-
485ADP
Analog
special
adapter
Analog
special
adapter
Main unit
(ch1)
FX
3G
-
CNV-ADP
FX3U-
485ADP
Analog
special
adapter
Main unit
(ch1)(ch2)
FX3U-
485ADP
FX3U-
485ADP
Analog
special
adapter
Analog
special
adapter
FX
3U
/FX
3UC
-32MT-LT(-2) Series PLC
Communication port channels are automatically allocated. The communication
special adapter closer to the main unit is ch1.
•Using one communication special adapter + communication expansion board
•Using two communication special adapters
FX3UC (D, DS, DSS) Series PLC
Communication port channels are automatically allocated. The communication
special adapter closer to the main unit is ch1.
3. Installation
For installation/uninstallation details, refer to the respective PLC User's manual
Hardware Edition.
INSTALLATION
PRECAUTIONS
•Make sure to cut off all phases of the power supply externally before
attempting installation or wiring work.
Failure to do so may cause electric shock or damage to the product.
INSTALLATION
PRECAUTIONS
•Use the product within the generic environment specifications described in
PLC main unit manual (Hardware Edition).
Never use the product in areas with excessive dust, oily smoke, conductive
dusts, corrosive gas (salt air, Cl2, H2S, SO2, or NO2), flammable gas,
vibration or impacts, or expose it to high temperature, condensation, or rain
and wind.
If the product is used in such conditions, electric shock, fire, malfunctions,
deterioration or damage may occur.
•When drilling screw holes or wiring, make sure cutting or wire debris does
not enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions.
•Do not touch the conductive parts of the product directly.
Doing so may cause device failures or malfunctions.
•Connect special adapter securely to their designated connectors.
Loose connections may cause malfunctions.
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
FX
3U
-
485ADP Main unit
Communication
expansion board (ch1)
(ch2)
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
FX
3U
-
485ADP
Analog
special
adapter
FX
3U
-
485ADP Main unit
FX
3U
-CNV-BD(ch1)(ch2)
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
FX
3U
-
485ADP Analog
special
adapter
FX
3U
-
485ADP Main unit
(ch1)(ch2)
3.1 Connection to the PLC
This section describes the connection method to the PLC (FX3U Series PLC is used for
the following example).
For installation method to other PLCs, refer to the respective PLC User's manual
Hardware Edition.
Procedure
1) Turn off the power.
Disconnect all the cables connected to the PLC main unit and special adapter, and
demount the main unit and special adapter mounted on DIN rail or mounted directly
using screws.
2) Install an expansion board to the main unit.
For the expansion board installation procedure, refer to the following manual:
→ FX3U Series User's Manual - Hardware Edition
3) Remove the special adapter connector cover on
the expansion board (fig.A).
When connecting this product to another special
adapter, please replace the 'expansion board' in
the above description with a 'special adapter' and
perform the procedure as indicated.
4) Slide the special adapter slide lock
(fig.B) of the main unit.
When connecting this product to another special
adapter, please replace the 'main unit' in the
above description with a 'special adapter' and
perform the procedure as indicated. (Please
replace the following procedures similarly.)
5) Connect the
special adapter
(fig.C) to the
main unit as
shown on the
right.
6) Slide back the
special adapter slide
lock (fig.B) of the
main unit to fix the
special adapter
(fig.C).
Connection precautions
Connect all the high-speed I/O special adapters before connecting other special
adapters when they are used in combination.
Do not connect a high-speed I/O special adapter on the left side of any special
adapters other than other high-speed I/O special adapters.
RUN
STOP
FX
3U
-48MR/ES
FX
3U
-48M
3)
4)
B
B
A
4)
RUN
STOP
FX
3U
-48MR/ES-48MR/ES
FX
3U
-48M
0
IN
10
1
POWER
RD
SD
FX
3U
-485ADP
FX
3U
-48M
6)
C
B
B
5)
5)
5)
6)
4. Wiring
For wiring details, refer to the following manual.
→ FX Series User's Manual - Data Communication Edition
Wiring precaution
•Do not attach the terminal block (replacement European terminal block) for
connecting RS-485 device which is already wired to FX3U-485-BD.
If attached as its left and right are confused, the terminal configuration becomes
upside down and no communication is performed.
5. Specifications
5.1 Applicable PLC
The version number can be checked by monitoring D8001/D8101 as the last three
digits indicate it.
WIRING
PRECAUTIONS
•Make sure to cut off all phases of the power supply externally before attempting
installation or wiring work.
Failure to do so may cause electric shock or damage to the product.
WIRING
PRECAUTIONS
•When drilling screw holes or wiring, make sure cutting or wire debris does not
enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions.
•Make sure to observe the following precautions in order to prevent any damage to
the machinery or accidents due to abnormal data written to the PLC under the
influence of noise:
1) Do not bundle the main circuit line together with or lay it close to the main
circuit, high-voltage line or load line.
Otherwise, noise disturbance and/or surge induction are likely to take place. As
a guideline, lay the control line at least 100mm (3.94") or more away from the
main circuit or high-voltage lines.
2) Ground the shield wire or shield of the shielded cable at one point on the PLC.
However, do not use common grounding with heavy electrical systems.
•Make sure to properly wire to the terminal block (European type) in accordance
with the following precautions.
Failure to do so may cause electric shock, equipment failures, a short-circuit, wire
breakage, malfunctions, or damage to the product.
- The disposal size of the cable end should follow the dimensions described in
the manual of the PLC main unit.
- Tightening torque should follow the specifications in the manual of the PLC
main unit.
- Twist the end of strand wire and make sure that there are no loose wires.
- Do not solder-plate the electric wire ends.
- Do not connect more than the specified number of wires or electric wires of
unspecified size.
- Affix the electric wires so that neither the terminal block nor the connected
parts are directly stressed.
STARTUP AND
MAINTENANCE
PRECAUTIONS
•Do not disassemble or modify the PLC.
Doing so may cause fire, equipment failures, or malfunctions.
* For repair, contact your local Mitsubishi Electric representative.
•Do not drop the product or exert strong impact to it.
Doing so may cause damage.
DISPOSAL
PRECAUTIONS
•Please contact a certified electronic waste disposal company for the
environmentally safe recycling and disposal of your device.
TRANSPORTATION AND
STORAGE PRECAUTIONS
•The product is a precision instrument. During transportation, avoid any impacts.
Failure to do so may cause failures in the product. After transportation, verify the
operations of the product.
Model name Applicability
FX3S Series PLC Ver. 1.00 or later (from first production)
FX3G Series PLC Ver. 1.00 or later (from first production)
FX3GC Series PLC Ver. 1.40 or later (from first production)
FX3U Series PLC Ver. 2.20 or later (from first production)
FX3UC Series PLC Ver. 1.00 or later (from first production)
5.2 General Specifications
Items other than the following are equivalent to the those of the PLC main unit.
For general specifications, refer to the respective PLC User's manual Hardware
Edition.
5.3 Power Supply Specifications
5.4 Performance Specification
*1 Applicable for FX3U/FX3UC Series PLC Ver. 2.41 or later and FX3S/FX3G/
FX3GC Series PLC.
Item Specification
Dielectric withstand
voltage 500 V AC, one minute Between terminal block
and ground terminal of
PLC main unit
Insulation resistance 5 MΩor more by 500 V DC
megger
Item Specification
Current
consumption
20 mA
5 V DC power is supplied from the internal power supply
of main unit.
Item Specification
Transmission
standard Conforming to RS-485/RS-422
Type of isolation Photocoupler isolation
Transmission
distance
Total extension distance: 500 m (1640' 5") or less
[50 m (164' 0") or less if FX1N-485-BD, FX2N-485-BD or
FX3G-485-BD, FX3U-485-BD is installed to connected
equipment]
Connection method
European type terminal block, AWG 22-20 (when
inserting one twisted pair cable), AWG 22 (when
inserting two twisted pair cables)
Tightening torque: 0.22 to 0.25 N•m
Number of occupied
I/O points
0 point (This number is not related to the maximum
number of input/output points of the PLC.)
Communication
method Half-duplex
Baud rate
N:N network: 38400 bps
Parallel Link: 115200 bps
Computer Link, Non-Protocol Communication:
300/600/1200/2400/4800/9600/19200/38400*1 bps
Inverter communication:
4800/9600/19200/38400*1 bps
Communication
format
N:N network, Parallel Link
Computer Link (dedicated protocol: format 1/format 4),
Non-Protocol, and Inverter communication
LED display:
LED color Power: green, RD: red, SD: red
FX3U-485ADP
Installation Manual
This manual describes the part names, dimensions, mounting, and
specifications of the product. Before use, read this manual and the manuals of
all relevant products fully to acquire proficiency in handling and operating the
product. Make sure to learn all the product information, safety information, and
precautions.
Store this manual in a safe place so that it can be taken out and read whenever
necessary. Always forward it to the end user.
Registration:
The company and product names described in this manual are registered
trademarks or the trademarks of their respective companies.
Effective April 2013
Specifications are subject to change without notice.
©2005 Mitsubishi Electric Corporation
Manual Number JY997D13801
Revision J
Date April 2013
Industrial automation
Elincom Group
European Union: www.elinco.eu
Russia: www.elinc.ru

This manual confers no industrial property rights or any rights of any other kind,
nor does it confer any patent licenses. Mitsubishi Electric Corporation cannot be
held responsible for any problems involving industrial property rights which may
occur as a result of using the contents noted in this manual.
Warranty
Mitsubishi will not be held liable for damage caused by factors found not to be
the cause of Mitsubishi; opportunity loss or lost profits caused by faults in the
Mitsubishi products; damage, secondary damage, accident compensation
caused by special factors unpredictable by Mitsubishi; damages to products
other than Mitsubishi products; and to other duties.
For safe use
This product has been manufactured as a general-purpose part for general
industries, and has not been designed or manufactured to be incorporated in
a device or system used in purposes related to human life.
Before using the product for special purposes such as nuclear power, electric
power, aerospace, medicine or passenger movement vehicles, consult with
Mitsubishi Electric.
This product has been manufactured under strict quality control. However
when installing the product where major accidents or losses could occur if the
product fails, install appropriate backup or failsafe functions in the system.
•
•
•
HEAD OFFICE
HIMEJI WORKS
: TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
: 840, CHIYODA CHO, HIMEJI, JAPAN
Side
B
Side
A
Side
BJAPANESE ENGLISH
JY997D13801J
Safety Precaution (Read these precautions before use.)
This manual classifies the safety precautions into two categories:
and .
Depending on the circumstances, procedures indicated by may
also cause severe injury.
It is important to follow all precautions for personal safety.
Associated Manuals
How to obtain manuals
For product manuals or documents, consult with the Mitsubishi Electric dealer
from who you purchased your product.
Indicates that incorrect handling may cause hazardous
conditions, resulting in death or severe injury.
Indicates that incorrect handling may cause hazardous
conditions, resulting in medium or slight personal injury
or physical damage.
Manual name Manual No. Description
FX3S Series
User’s Manual
- Hardware Edition
JY997D48601
MODEL CODE:
09R535
Explains the FX3S Series PLC
specifications for I/O, wiring,
installation, and maintenance.
FX3G Series
User’s Manual
- Hardware Edition
JY997D31301
MODEL CODE:
09R521
Explains the FX3G Series PLC
specifications for I/O, wiring,
installation, and maintenance.
FX3GC Series
User’s Manual
- Hardware Edition
JY997D45401
MODEL CODE:
09R533
Explains the FX3GC Series PLC
specifications for I/O, wiring,
installation, and maintenance.
FX3U Series
User’s Manual
- Hardware Edition
JY997D16501
MODEL CODE:
09R516
Explains the FX3U Series PLC
specifications for I/O, wiring,
installation, and maintenance.
FX3UC Series
User’s Manual
- Hardware Edition
JY997D28701
MODEL CODE:
09R519
Explains the FX3UC Series PLC
specifications for I/O, wiring,
installation, and maintenance.
FX3S/FX3G/FX3GC/
FX3U/FX3UC Series
Programming Manual
- Basic & Applied
Instruction Edition
JY997D16601
MODEL CODE:
09R517
Describes PLC programming for
basic/applied instructions and
devices.
FX Series
User’s Manual
- Data Communication
Edition
JY997D16901
MODEL CODE:
09R715
Explains N:N network, Parallel Link,
Computer Link, Non-Protocol
communication by RS and RS2
instructions/FX2N-232IF.
Applicable standards
FX3U-485ADP units made in June, 2005 or later comply with the EC Directive (EMC
Directive) and UL standards (UL, cUL). Further information can be found in the
following manual.
→ FX3S Series Hardware Manual (Manual No. JY997D48301)
→ FX3G Series Hardware Manual (Manual No. JY997D46001)
→ FX3GC Series Hardware Manual (Manual No. JY997D45201)
→ FX3U Series Hardware Manual (Manual No. JY997D18801)
→ FX3UC (D, DS, DSS) Series Hardware Manual (Manual No. JY997D28601)
→ FX3UC-32MT-LT-2 Hardware Manual (Manual No. JY997D31601)
Regarding the standards that relate to the main unit, please refer to either the FX
series product catalog or consult with your nearest Mitsubishi product provider.
Attention
•This product is designed for use in industrial applications.
Note
•Manufactured by: Mitsubishi Electric Corporation
2-7-3 Marunouchi, Chiyoda-ku, Tokyo, 100-8310 Japan
•Manufactured at: Mitsubishi Electric Corporation Himeji Works
840 Chiyoda-machi, Himeji, Hyogo, 670-8677 Japan
•Authorized Representative in the European Community:
Mitsubishi Electric Europe B.V.
Gothaer Str. 8, 40880 Ratingen, Germany
1. Outline
The FX3U-485ADP communication special adapter (hereinafter called 485ADP) is a
special adapter for RS-485 communication with a terminal block (European type).
The 485ADP is an isolated signal exchange unit of RS-485 serial data communication
between the PLC and an RS-485 device.
1.1 Communication Function
1.2 Incorporated Items
Verify that the following product and items are included in the package:
The label should be applied on the front of 485ADP for checking station numbers in
N:N network, computer link, etc.
1.3 External Dimensions and Part Names
Communication type Function
N:N network Data transfer connecting up to eight FX Series PLCs.
Parallel link Data transfer between two FX Series PLCs relationship
specifying master/slave station.
Computer link Data transfer between the PLC and computer (specified as
the master station) via dedicated protocol.
Non-protocol
communication
Serial communication between the PLC and an RS-485
device via non-protocol.
Inverter
communication
Controlling Mitsubishi's FREQROL inverter using inverter
communication instructions.
Product FX3U-485ADP communication special adapter
Accessories Label for indication of link station number
Installation manual (This manual)
74(2.92")
[6]
[5]
[7]
[8]
[9]
[10]
[3]
[12]
[14]
[11]
Weight: Approx. 80 g (0.18 lbs)
Special adapter
connector cover
is removed
7(0.28")
15.5
(0.65")
90(3.55") 98(3.86")
(mounting hole pitch)
106(4.18")
17.6
(0.7")
15.1
(0.6")
RDA
RDB
SDA
SDB
SG
[13]
[2]
[4]
[1]
1.4 Terminal Configuration
The terminal configuration of the RS-485 terminal on the 485ADP is shown below.
Note that the terminal configuration is different from that of the FX3U-485-BD.
1.5 Terminal Resistor Selector Switch
485ADP has a built-in terminal resistor.
A terminal resistor may be required depending on the communication type. Refer to the
following manual for the terminal resistor setting.
→ FX Series User's Manual - Data Communication Edition
1.6 Operation of Terminal Resistor Selector Switch
Use the tip of tweezers, tip of mechanical pencil, minute screwdriver, or the tool
whose tip width is about 0.8 mm (0.03") when operating the terminal resistor selector
switch.
Either 'push down' or 'push up' the switch to change the setting as indicated in the
figure above.
Confirm the clicking noise when setting the switch.
[1] DIN rail mounting groove (DIN rail: DIN46277)
[2] Name plate
[3] Special adapter slide lock:
Used to connect additional special adapters onto left side of this special adapter.
[4] Special adapter connector cover:
Remove this cover to connect additional special adapters on the left side.
[5] Direct mounting hole:2 holes of φ4.5 (0.18") (mounting screw: M4 screw)
Not used when connecting to FX3GC/FX3UC Series PLC.
[6] POWER LED (green): Lit while 5 V DC power is supplied from main unit.
[7] RD LED (red):
Lit while receiving data from connected RS-485 device.
[8] SD LED (red):
Lit while sending data to connected RS-485 device.
[9] Terminal resistor selector switch (330Ω/OPEN/110Ω)
[10] Special adapter connector:
Used to connect this special adapter to PLC main unit or special adapter.
[11] Terminal block (European type) for connecting RS-485 device
Use to connect RS-485 device to 485ADP.
[12] DIN rail mounting hook
[13] Special adapter fixing hook
[14] Special adapter connector:
Used to connect communication or analog special adapter to the left side of the
485ADP.
Signal
name Function
Signal direction
485ADP RS-485
equipment
RDA(RXD+) Receive data ←
RDB(RXD-)
SDA(TXD+) Send data →
SDB(TXD-)
SG(GND) Signal ground −
Terminal screws
RDARDBSDASDBSG
Setting terminal
resistor to 330
Ω
330 Ω
OPEN
110
Ω
Setting no
terminal resistor
330 Ω
OPEN
110 Ω
Setting terminal
resistor to 110
Ω
330 Ω
OPEN
110
Ω
330 Ω
OPEN
110 Ω
Pushing down
direction
Pushing up direction
Tool
Switch
330
Ω
OPEN
110
Ω
330 Ω
OPEN
110
Ω
Tool
2. Channel Allocation
Up to two communication ports can be added to the main unit.
Refer to the following manual for equipment that occupies communication ports.
→ FX Series User's Manual - Data Communication Edition
FX 3S Series PLC
Communication port channels are automatically allocated.
FX3G Series PLC
Communication port channels are automatically allocated.
•40-point, 60-point type
•14-point, 24-point type
FX3GC Series PLC
Communication port channels are automatically allocated. The communication
special adapter closer to the main unit is ch1.
Main unit
(ch1)
FX 3S -
CNV-ADP
FX3U-
485ADP
Analog
special
adapter
Main unit
(ch1)(ch2)
Analog
special
adapter
Analog
special
adapter
FX 3G -
CNV-ADP
FX3U-
485ADP
FX3U-
485ADP
Main unit
Communication
expansion board (ch2)
(ch1)
FX 3G -
CNV-ADP
FX3U-
485ADP
Analog
special
adapter
Analog
special
adapter
Main unit
(ch1)
FX 3G -
CNV-ADP
FX3U-
485ADP
Analog
special
adapter
Main unit
(ch1)(ch2)
FX3U-
485ADP
FX3U-
485ADP
Analog
special
adapter
Analog
special
adapter
FX 3U /FX 3UC -32MT-LT(-2) Series PLC
Communication port channels are automatically allocated. The communication
special adapter closer to the main unit is ch1.
•Using one communication special adapter + communication expansion board
•Using two communication special adapters
FX3UC (D, DS, DSS) Series PLC
Communication port channels are automatically allocated. The communication
special adapter closer to the main unit is ch1.
3. Installation
For installation/uninstallation details, refer to the respective PLC User's manual
Hardware Edition.
INSTALLATION
PRECAUTIONS
•Make sure to cut off all phases of the power supply externally before
attempting installation or wiring work.
Failure to do so may cause electric shock or damage to the product.
INSTALLATION
PRECAUTIONS
•Use the product within the generic environment specifications described in
PLC main unit manual (Hardware Edition).
Never use the product in areas with excessive dust, oily smoke, conductive
dusts, corrosive gas (salt air, Cl2, H2S, SO2, or NO2), flammable gas,
vibration or impacts, or expose it to high temperature, condensation, or rain
and wind.
If the product is used in such conditions, electric shock, fire, malfunctions,
deterioration or damage may occur.
•When drilling screw holes or wiring, make sure cutting or wire debris does
not enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions.
•Do not touch the conductive parts of the product directly.
Doing so may cause device failures or malfunctions.
•Connect special adapter securely to their designated connectors.
Loose connections may cause malfunctions.
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
FX 3U -
485ADP Main unit
Communication
expansion board (ch1)
(ch2)
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
FX
3U
-
485ADP
Analog
special
adapter
FX
3U
-
485ADP Main unit
FX 3U -CNV-BD(ch1)(ch2)
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
FX
3U
-
485ADP Analog
special
adapter
FX
3U
-
485ADP Main unit
(ch1)(ch2)
3.1 Connection to the PLC
This section describes the connection method to the PLC (FX3U Series PLC is used for
the following example).
For installation method to other PLCs, refer to the respective PLC User's manual
Hardware Edition.
Procedure
1) Turn off the power.
Disconnect all the cables connected to the PLC main unit and special adapter, and
demount the main unit and special adapter mounted on DIN rail or mounted directly
using screws.
2) Install an expansion board to the main unit.
For the expansion board installation procedure, refer to the following manual:
→ FX3U Series User's Manual - Hardware Edition
3) Remove the special adapter connector cover on
the expansion board (fig.A).
When connecting this product to another special
adapter, please replace the 'expansion board' in
the above description with a 'special adapter' and
perform the procedure as indicated.
4) Slide the special adapter slide lock
(fig.B) of the main unit.
When connecting this product to another special
adapter, please replace the 'main unit' in the
above description with a 'special adapter' and
perform the procedure as indicated. (Please
replace the following procedures similarly.)
5) Connect the
special adapter
(fig.C) to the
main unit as
shown on the
right.
6) Slide back the
special adapter slide
lock (fig.B) of the
main unit to fix the
special adapter
(fig.C).
Connection precautions
Connect all the high-speed I/O special adapters before connecting other special
adapters when they are used in combination.
Do not connect a high-speed I/O special adapter on the left side of any special
adapters other than other high-speed I/O special adapters.
RUN
STOP
FX
3U
-48MR/ES
FX
3U
-48M
3)
4)
B
B
A
4)
RUN
STOP
FX
3U
-48MR/ES
-48MR/ES
FX
3U
-48M
0
IN
10
1
POWER
RD
SD
FX
3U
-485ADP
FX
3U
-48M
6)
C
B
B
5)
5)
5)
6)
4. Wiring
For wiring details, refer to the following manual.
→ FX Series User's Manual - Data Communication Edition
Wiring precaution
•Do not attach the terminal block (replacement European terminal block) for
connecting RS-485 device which is already wired to FX3U-485-BD.
If attached as its left and right are confused, the terminal configuration becomes
upside down and no communication is performed.
5. Specifications
5.1 Applicable PLC
The version number can be checked by monitoring D8001/D8101 as the last three
digits indicate it.
WIRING
PRECAUTIONS
•Make sure to cut off all phases of the power supply externally before attempting
installation or wiring work.
Failure to do so may cause electric shock or damage to the product.
WIRING
PRECAUTIONS
•When drilling screw holes or wiring, make sure cutting or wire debris does not
enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions.
•Make sure to observe the following precautions in order to prevent any damage to
the machinery or accidents due to abnormal data written to the PLC under the
influence of noise:
1) Do not bundle the main circuit line together with or lay it close to the main
circuit, high-voltage line or load line.
Otherwise, noise disturbance and/or surge induction are likely to take place. As
a guideline, lay the control line at least 100mm (3.94") or more away from the
main circuit or high-voltage lines.
2) Ground the shield wire or shield of the shielded cable at one point on the PLC.
However, do not use common grounding with heavy electrical systems.
•Make sure to properly wire to the terminal block (European type) in accordance
with the following precautions.
Failure to do so may cause electric shock, equipment failures, a short-circuit, wire
breakage, malfunctions, or damage to the product.
- The disposal size of the cable end should follow the dimensions described in
the manual of the PLC main unit.
- Tightening torque should follow the specifications in the manual of the PLC
main unit.
- Twist the end of strand wire and make sure that there are no loose wires.
- Do not solder-plate the electric wire ends.
- Do not connect more than the specified number of wires or electric wires of
unspecified size.
- Affix the electric wires so that neither the terminal block nor the connected
parts are directly stressed.
STARTUP AND
MAINTENANCE
PRECAUTIONS
•Do not disassemble or modify the PLC.
Doing so may cause fire, equipment failures, or malfunctions.
* For repair, contact your local Mitsubishi Electric representative.
•Do not drop the product or exert strong impact to it.
Doing so may cause damage.
DISPOSAL
PRECAUTIONS
•Please contact a certified electronic waste disposal company for the
environmentally safe recycling and disposal of your device.
TRANSPORTATION AND
STORAGE PRECAUTIONS
•The product is a precision instrument. During transportation, avoid any impacts.
Failure to do so may cause failures in the product. After transportation, verify the
operations of the product.
Model name Applicability
FX3S Series PLC Ver. 1.00 or later (from first production)
FX3G Series PLC Ver. 1.00 or later (from first production)
FX3GC Series PLC Ver. 1.40 or later (from first production)
FX3U Series PLC Ver. 2.20 or later (from first production)
FX3UC Series PLC Ver. 1.00 or later (from first production)
5.2 General Specifications
Items other than the following are equivalent to the those of the PLC main unit.
For general specifications, refer to the respective PLC User's manual Hardware
Edition.
5.3 Power Supply Specifications
5.4 Performance Specification
*1 Applicable for FX3U/FX3UC Series PLC Ver. 2.41 or later and FX3S/FX3G/
FX3GC Series PLC.
Item Specification
Dielectric withstand
voltage 500 V AC, one minute Between terminal block
and ground terminal of
PLC main unit
Insulation resistance 5 MΩor more by 500 V DC
megger
Item Specification
Current
consumption
20 mA
5 V DC power is supplied from the internal power supply
of main unit.
Item Specification
Transmission
standard Conforming to RS-485/RS-422
Type of isolation Photocoupler isolation
Transmission
distance
Total extension distance: 500 m (1640' 5") or less
[50 m (164' 0") or less if FX1N-485-BD, FX2N-485-BD or
FX3G-485-BD, FX3U-485-BD is installed to connected
equipment]
Connection method
European type terminal block, AWG 22-20 (when
inserting one twisted pair cable), AWG 22 (when
inserting two twisted pair cables)
Tightening torque: 0.22 to 0.25 N•m
Number of occupied
I/O points
0 point (This number is not related to the maximum
number of input/output points of the PLC.)
Communication
method Half-duplex
Baud rate
N:N network: 38400 bps
Parallel Link: 115200 bps
Computer Link, Non-Protocol Communication:
300/600/1200/2400/4800/9600/19200/38400*1 bps
Inverter communication:
4800/9600/19200/38400*1 bps
Communication
format
N:N network, Parallel Link
Computer Link (dedicated protocol: format 1/format 4),
Non-Protocol, and Inverter communication
LED display:
LED color Power: green, RD: red, SD: red
FX3U-485ADP
Installation Manual
This manual describes the part names, dimensions, mounting, and
specifications of the product. Before use, read this manual and the manuals of
all relevant products fully to acquire proficiency in handling and operating the
product. Make sure to learn all the product information, safety information, and
precautions.
Store this manual in a safe place so that it can be taken out and read whenever
necessary. Always forward it to the end user.
Registration:
The company and product names described in this manual are registered
trademarks or the trademarks of their respective companies.
Effective April 2013
Specifications are subject to change without notice.
©2005 Mitsubishi Electric Corporation
Manual Number JY997D13801
Revision J
Date April 2013

This manual confers no industrial property rights or any rights of any other kind,
nor does it confer any patent licenses. Mitsubishi Electric Corporation cannot be
held responsible for any problems involving industrial property rights which may
occur as a result of using the contents noted in this manual.
Warranty
Mitsubishi will not be held liable for damage caused by factors found not to be
the cause of Mitsubishi; opportunity loss or lost profits caused by faults in the
Mitsubishi products; damage, secondary damage, accident compensation
caused by special factors unpredictable by Mitsubishi; damages to products
other than Mitsubishi products; and to other duties.
For safe use
This product has been manufactured as a general-purpose part for general
industries, and has not been designed or manufactured to be incorporated in
a device or system used in purposes related to human life.
Before using the product for special purposes such as nuclear power, electric
power, aerospace, medicine or passenger movement vehicles, consult with
Mitsubishi Electric.
This product has been manufactured under strict quality control. However
when installing the product where major accidents or losses could occur if the
product fails, install appropriate backup or failsafe functions in the system.
•
•
•
HEAD OFFICE
HIMEJI WORKS
: TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
: 840, CHIYODA CHO, HIMEJI, JAPAN
Side
B
Side
A
Side
BJAPANESE ENGLISH
JY997D13801J
Safety Precaution (Read these precautions before use.)
This manual classifies the safety precautions into two categories:
and .
Depending on the circumstances, procedures indicated by may
also cause severe injury.
It is important to follow all precautions for personal safety.
Associated Manuals
How to obtain manuals
For product manuals or documents, consult with the Mitsubishi Electric dealer
from who you purchased your product.
Indicates that incorrect handling may cause hazardous
conditions, resulting in death or severe injury.
Indicates that incorrect handling may cause hazardous
conditions, resulting in medium or slight personal injury
or physical damage.
Manual name Manual No. Description
FX3S Series
User’s Manual
- Hardware Edition
JY997D48601
MODEL CODE:
09R535
Explains the FX3S Series PLC
specifications for I/O, wiring,
installation, and maintenance.
FX3G Series
User’s Manual
- Hardware Edition
JY997D31301
MODEL CODE:
09R521
Explains the FX3G Series PLC
specifications for I/O, wiring,
installation, and maintenance.
FX3GC Series
User’s Manual
- Hardware Edition
JY997D45401
MODEL CODE:
09R533
Explains the FX3GC Series PLC
specifications for I/O, wiring,
installation, and maintenance.
FX3U Series
User’s Manual
- Hardware Edition
JY997D16501
MODEL CODE:
09R516
Explains the FX3U Series PLC
specifications for I/O, wiring,
installation, and maintenance.
FX3UC Series
User’s Manual
- Hardware Edition
JY997D28701
MODEL CODE:
09R519
Explains the FX3UC Series PLC
specifications for I/O, wiring,
installation, and maintenance.
FX3S/FX3G/FX3GC/
FX3U/FX3UC Series
Programming Manual
- Basic & Applied
Instruction Edition
JY997D16601
MODEL CODE:
09R517
Describes PLC programming for
basic/applied instructions and
devices.
FX Series
User’s Manual
- Data Communication
Edition
JY997D16901
MODEL CODE:
09R715
Explains N:N network, Parallel Link,
Computer Link, Non-Protocol
communication by RS and RS2
instructions/FX2N-232IF.
Applicable standards
FX3U-485ADP units made in June, 2005 or later comply with the EC Directive (EMC
Directive) and UL standards (UL, cUL). Further information can be found in the
following manual.
→ FX3S Series Hardware Manual (Manual No. JY997D48301)
→ FX3G Series Hardware Manual (Manual No. JY997D46001)
→ FX3GC Series Hardware Manual (Manual No. JY997D45201)
→ FX3U Series Hardware Manual (Manual No. JY997D18801)
→ FX3UC (D, DS, DSS) Series Hardware Manual (Manual No. JY997D28601)
→ FX3UC-32MT-LT-2 Hardware Manual (Manual No. JY997D31601)
Regarding the standards that relate to the main unit, please refer to either the FX
series product catalog or consult with your nearest Mitsubishi product provider.
Attention
•This product is designed for use in industrial applications.
Note
•Manufactured by: Mitsubishi Electric Corporation
2-7-3 Marunouchi, Chiyoda-ku, Tokyo, 100-8310 Japan
•Manufactured at: Mitsubishi Electric Corporation Himeji Works
840 Chiyoda-machi, Himeji, Hyogo, 670-8677 Japan
•Authorized Representative in the European Community:
Mitsubishi Electric Europe B.V.
Gothaer Str. 8, 40880 Ratingen, Germany
1. Outline
The FX3U-485ADP communication special adapter (hereinafter called 485ADP) is a
special adapter for RS-485 communication with a terminal block (European type).
The 485ADP is an isolated signal exchange unit of RS-485 serial data communication
between the PLC and an RS-485 device.
1.1 Communication Function
1.2 Incorporated Items
Verify that the following product and items are included in the package:
The label should be applied on the front of 485ADP for checking station numbers in
N:N network, computer link, etc.
1.3 External Dimensions and Part Names
Communication type Function
N:N network Data transfer connecting up to eight FX Series PLCs.
Parallel link Data transfer between two FX Series PLCs relationship
specifying master/slave station.
Computer link Data transfer between the PLC and computer (specified as
the master station) via dedicated protocol.
Non-protocol
communication
Serial communication between the PLC and an RS-485
device via non-protocol.
Inverter
communication
Controlling Mitsubishi's FREQROL inverter using inverter
communication instructions.
Product FX3U-485ADP communication special adapter
Accessories Label for indication of link station number
Installation manual (This manual)
74(2.92")
[6]
[5]
[7]
[8]
[9]
[10]
[3]
[12]
[14]
[11]
Weight: Approx. 80 g (0.18 lbs)
Special adapter
connector cover
is removed
7(0.28")
15.5
(0.65")
90(3.55") 98(3.86")
(mounting hole pitch)
106(4.18")
17.6
(0.7")
15.1
(0.6")
RDA
RDB
SDA
SDB
SG
[13]
[2]
[4]
[1]
1.4 Terminal Configuration
The terminal configuration of the RS-485 terminal on the 485ADP is shown below.
Note that the terminal configuration is different from that of the FX3U-485-BD.
1.5 Terminal Resistor Selector Switch
485ADP has a built-in terminal resistor.
A terminal resistor may be required depending on the communication type. Refer to the
following manual for the terminal resistor setting.
→ FX Series User's Manual - Data Communication Edition
1.6 Operation of Terminal Resistor Selector Switch
Use the tip of tweezers, tip of mechanical pencil, minute screwdriver, or the tool
whose tip width is about 0.8 mm (0.03") when operating the terminal resistor selector
switch.
Either 'push down' or 'push up' the switch to change the setting as indicated in the
figure above.
Confirm the clicking noise when setting the switch.
[1] DIN rail mounting groove (DIN rail: DIN46277)
[2] Name plate
[3] Special adapter slide lock:
Used to connect additional special adapters onto left side of this special adapter.
[4] Special adapter connector cover:
Remove this cover to connect additional special adapters on the left side.
[5] Direct mounting hole:2 holes of φ4.5 (0.18") (mounting screw: M4 screw)
Not used when connecting to FX3GC/FX3UC Series PLC.
[6] POWER LED (green): Lit while 5 V DC power is supplied from main unit.
[7] RD LED (red):
Lit while receiving data from connected RS-485 device.
[8] SD LED (red):
Lit while sending data to connected RS-485 device.
[9] Terminal resistor selector switch (330Ω/OPEN/110Ω)
[10] Special adapter connector:
Used to connect this special adapter to PLC main unit or special adapter.
[11] Terminal block (European type) for connecting RS-485 device
Use to connect RS-485 device to 485ADP.
[12] DIN rail mounting hook
[13] Special adapter fixing hook
[14] Special adapter connector:
Used to connect communication or analog special adapter to the left side of the
485ADP.
Signal
name Function
Signal direction
485ADP RS-485
equipment
RDA(RXD+) Receive data ←
RDB(RXD-)
SDA(TXD+) Send data →
SDB(TXD-)
SG(GND) Signal ground −
Terminal screws
RDARDBSDASDBSG
Setting terminal
resistor to 330
Ω
330 Ω
OPEN
110
Ω
Setting no
terminal resistor
330 Ω
OPEN
110 Ω
Setting terminal
resistor to 110
Ω
330 Ω
OPEN
110
Ω
330 Ω
OPEN
110 Ω
Pushing down
direction
Pushing up direction
Tool
Switch
330
Ω
OPEN
110
Ω
330 Ω
OPEN
110
Ω
Tool
2. Channel Allocation
Up to two communication ports can be added to the main unit.
Refer to the following manual for equipment that occupies communication ports.
→ FX Series User's Manual - Data Communication Edition
FX 3S Series PLC
Communication port channels are automatically allocated.
FX3G Series PLC
Communication port channels are automatically allocated.
•40-point, 60-point type
•14-point, 24-point type
FX3GC Series PLC
Communication port channels are automatically allocated. The communication
special adapter closer to the main unit is ch1.
Main unit
(ch1)
FX 3S -
CNV-ADP
FX3U-
485ADP
Analog
special
adapter
Main unit
(ch1)(ch2)
Analog
special
adapter
Analog
special
adapter
FX 3G -
CNV-ADP
FX3U-
485ADP
FX3U-
485ADP
Main unit
Communication
expansion board (ch2)
(ch1)
FX 3G -
CNV-ADP
FX3U-
485ADP
Analog
special
adapter
Analog
special
adapter
Main unit
(ch1)
FX 3G -
CNV-ADP
FX3U-
485ADP
Analog
special
adapter
Main unit
(ch1)(ch2)
FX3U-
485ADP
FX3U-
485ADP
Analog
special
adapter
Analog
special
adapter
FX 3U /FX 3UC -32MT-LT(-2) Series PLC
Communication port channels are automatically allocated. The communication
special adapter closer to the main unit is ch1.
•Using one communication special adapter + communication expansion board
•Using two communication special adapters
FX3UC (D, DS, DSS) Series PLC
Communication port channels are automatically allocated. The communication
special adapter closer to the main unit is ch1.
3. Installation
For installation/uninstallation details, refer to the respective PLC User's manual
Hardware Edition.
INSTALLATION
PRECAUTIONS
•Make sure to cut off all phases of the power supply externally before
attempting installation or wiring work.
Failure to do so may cause electric shock or damage to the product.
INSTALLATION
PRECAUTIONS
•Use the product within the generic environment specifications described in
PLC main unit manual (Hardware Edition).
Never use the product in areas with excessive dust, oily smoke, conductive
dusts, corrosive gas (salt air, Cl2, H2S, SO2, or NO2), flammable gas,
vibration or impacts, or expose it to high temperature, condensation, or rain
and wind.
If the product is used in such conditions, electric shock, fire, malfunctions,
deterioration or damage may occur.
•When drilling screw holes or wiring, make sure cutting or wire debris does
not enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions.
•Do not touch the conductive parts of the product directly.
Doing so may cause device failures or malfunctions.
•Connect special adapter securely to their designated connectors.
Loose connections may cause malfunctions.
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
FX 3U -
485ADP Main unit
Communication
expansion board (ch1)
(ch2)
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
FX
3U
-
485ADP
Analog
special
adapter
FX
3U
-
485ADP Main unit
FX 3U -CNV-BD(ch1)(ch2)
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
FX
3U
-
485ADP Analog
special
adapter
FX
3U
-
485ADP Main unit
(ch1)(ch2)
3.1 Connection to the PLC
This section describes the connection method to the PLC (FX3U Series PLC is used for
the following example).
For installation method to other PLCs, refer to the respective PLC User's manual
Hardware Edition.
Procedure
1) Turn off the power.
Disconnect all the cables connected to the PLC main unit and special adapter, and
demount the main unit and special adapter mounted on DIN rail or mounted directly
using screws.
2) Install an expansion board to the main unit.
For the expansion board installation procedure, refer to the following manual:
→ FX3U Series User's Manual - Hardware Edition
3) Remove the special adapter connector cover on
the expansion board (fig.A).
When connecting this product to another special
adapter, please replace the 'expansion board' in
the above description with a 'special adapter' and
perform the procedure as indicated.
4) Slide the special adapter slide lock
(fig.B) of the main unit.
When connecting this product to another special
adapter, please replace the 'main unit' in the
above description with a 'special adapter' and
perform the procedure as indicated. (Please
replace the following procedures similarly.)
5) Connect the
special adapter
(fig.C) to the
main unit as
shown on the
right.
6) Slide back the
special adapter slide
lock (fig.B) of the
main unit to fix the
special adapter
(fig.C).
Connection precautions
Connect all the high-speed I/O special adapters before connecting other special
adapters when they are used in combination.
Do not connect a high-speed I/O special adapter on the left side of any special
adapters other than other high-speed I/O special adapters.
RUN
STOP
FX
3U
-48MR/ES
FX
3U
-48M
3)
4)
B
B
A
4)
RUN
STOP
FX
3U
-48MR/ES
-48MR/ES
FX
3U
-48M
0
IN
10
1
POWER
RD
SD
FX
3U
-485ADP
FX
3U
-48M
6)
C
B
B
5)
5)
5)
6)
4. Wiring
For wiring details, refer to the following manual.
→ FX Series User's Manual - Data Communication Edition
Wiring precaution
•Do not attach the terminal block (replacement European terminal block) for
connecting RS-485 device which is already wired to FX3U-485-BD.
If attached as its left and right are confused, the terminal configuration becomes
upside down and no communication is performed.
5. Specifications
5.1 Applicable PLC
The version number can be checked by monitoring D8001/D8101 as the last three
digits indicate it.
WIRING
PRECAUTIONS
•Make sure to cut off all phases of the power supply externally before attempting
installation or wiring work.
Failure to do so may cause electric shock or damage to the product.
WIRING
PRECAUTIONS
•When drilling screw holes or wiring, make sure cutting or wire debris does not
enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions.
•Make sure to observe the following precautions in order to prevent any damage to
the machinery or accidents due to abnormal data written to the PLC under the
influence of noise:
1) Do not bundle the main circuit line together with or lay it close to the main
circuit, high-voltage line or load line.
Otherwise, noise disturbance and/or surge induction are likely to take place. As
a guideline, lay the control line at least 100mm (3.94") or more away from the
main circuit or high-voltage lines.
2) Ground the shield wire or shield of the shielded cable at one point on the PLC.
However, do not use common grounding with heavy electrical systems.
•Make sure to properly wire to the terminal block (European type) in accordance
with the following precautions.
Failure to do so may cause electric shock, equipment failures, a short-circuit, wire
breakage, malfunctions, or damage to the product.
- The disposal size of the cable end should follow the dimensions described in
the manual of the PLC main unit.
- Tightening torque should follow the specifications in the manual of the PLC
main unit.
- Twist the end of strand wire and make sure that there are no loose wires.
- Do not solder-plate the electric wire ends.
- Do not connect more than the specified number of wires or electric wires of
unspecified size.
- Affix the electric wires so that neither the terminal block nor the connected
parts are directly stressed.
STARTUP AND
MAINTENANCE
PRECAUTIONS
•Do not disassemble or modify the PLC.
Doing so may cause fire, equipment failures, or malfunctions.
* For repair, contact your local Mitsubishi Electric representative.
•Do not drop the product or exert strong impact to it.
Doing so may cause damage.
DISPOSAL
PRECAUTIONS
•Please contact a certified electronic waste disposal company for the
environmentally safe recycling and disposal of your device.
TRANSPORTATION AND
STORAGE PRECAUTIONS
•The product is a precision instrument. During transportation, avoid any impacts.
Failure to do so may cause failures in the product. After transportation, verify the
operations of the product.
Model name Applicability
FX3S Series PLC Ver. 1.00 or later (from first production)
FX3G Series PLC Ver. 1.00 or later (from first production)
FX3GC Series PLC Ver. 1.40 or later (from first production)
FX3U Series PLC Ver. 2.20 or later (from first production)
FX3UC Series PLC Ver. 1.00 or later (from first production)
5.2 General Specifications
Items other than the following are equivalent to the those of the PLC main unit.
For general specifications, refer to the respective PLC User's manual Hardware
Edition.
5.3 Power Supply Specifications
5.4 Performance Specification
*1 Applicable for FX3U/FX3UC Series PLC Ver. 2.41 or later and FX3S/FX3G/
FX3GC Series PLC.
Item Specification
Dielectric withstand
voltage 500 V AC, one minute Between terminal block
and ground terminal of
PLC main unit
Insulation resistance 5 MΩor more by 500 V DC
megger
Item Specification
Current
consumption
20 mA
5 V DC power is supplied from the internal power supply
of main unit.
Item Specification
Transmission
standard Conforming to RS-485/RS-422
Type of isolation Photocoupler isolation
Transmission
distance
Total extension distance: 500 m (1640' 5") or less
[50 m (164' 0") or less if FX1N-485-BD, FX2N-485-BD or
FX3G-485-BD, FX3U-485-BD is installed to connected
equipment]
Connection method
European type terminal block, AWG 22-20 (when
inserting one twisted pair cable), AWG 22 (when
inserting two twisted pair cables)
Tightening torque: 0.22 to 0.25 N•m
Number of occupied
I/O points
0 point (This number is not related to the maximum
number of input/output points of the PLC.)
Communication
method Half-duplex
Baud rate
N:N network: 38400 bps
Parallel Link: 115200 bps
Computer Link, Non-Protocol Communication:
300/600/1200/2400/4800/9600/19200/38400*1 bps
Inverter communication:
4800/9600/19200/38400*1 bps
Communication
format
N:N network, Parallel Link
Computer Link (dedicated protocol: format 1/format 4),
Non-Protocol, and Inverter communication
LED display:
LED color Power: green, RD: red, SD: red
FX3U-485ADP
Installation Manual
This manual describes the part names, dimensions, mounting, and
specifications of the product. Before use, read this manual and the manuals of
all relevant products fully to acquire proficiency in handling and operating the
product. Make sure to learn all the product information, safety information, and
precautions.
Store this manual in a safe place so that it can be taken out and read whenever
necessary. Always forward it to the end user.
Registration:
The company and product names described in this manual are registered
trademarks or the trademarks of their respective companies.
Effective April 2013
Specifications are subject to change without notice.
©2005 Mitsubishi Electric Corporation
Manual Number JY997D13801
Revision J
Date April 2013