Mitsubishi Electric MELSEC-F FX3U-232ADP-MB 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
Exclusion of loss in opportunity and secondary loss from warranty liability
Regardless of the gratis warranty term, Mitsubishi shall not be liable for compensation to:
(1) Damages caused by any cause found not to be the responsibility of Mitsubishi.
(2)
Loss in opportunity, lost profits incurred to the user by Failures of Mitsubishi products.
(3) Special damages and secondary damages whether foreseeable or not, compensation for
accidents, and compensation for damages to products other than Mitsubishi products.
(4) Replacement by the user, maintenance of on-site equipment, start-up test run
and other tasks.
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 : TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
Safety Precautions (Read these precautions before use.)
This manual classify 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
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 FX3S Series PLC
specification details for I/O,
wiring, installation, and
maintenance.
FX3G Series User’s Manual
- Hardware Edition
JY997D31301
MODEL CODE:
09R521
Explains FX3G Series PLC
specification details for I/O,
wiring, installation, and
maintenance.
FX3GC Series User’s Manual
- Hardware Edition
JY997D45401
MODEL CODE:
09R533
Explains FX3GC Series PLC
specification details for I/O,
wiring, installation, and
maintenance.
FX3U Series User’s Manual
- Hardware Edition
JY997D16501
MODEL CODE:
09R516
Explains FX3U Series PLC
specification details for I/O,
wiring, installation, and
maintenance.
FX3UC Series User’s Manual
- Hardware Edition
JY997D28701
MODEL CODE:
09R519
Explains FX3UC Series PLC
specification details for I/O,
wiring, installation, and
maintenance.
FX 3S /FX 3G /FX 3GC /FX 3U /
FX
3UC 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
Describes N:N link, parallel
link, computer link, no
protocol communication by
RS instructions/FX2N-232IF.
How to obtain manuals
For the necessary product manuals or documents, consult with the Mitsubishi Electric
dealer from where you purchase your product.
Applicable standards
FX3U-232ADP-MB units made in April, 2007 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. JY997D50301)
→ FX3UC (D, DS, DSS) Series Hardware Manual (Manual No. JY997D50501)
→ 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.
1. Outline
The FX3U-232ADP-MB communication special adapter (hereinafter called 232ADP-
MB) is a special adapter for RS-232C communication with an 9-pin D-Sub connector.
232ADP-MB is an isolated signal exchange unit of the RS-232C serial data
communication between the PLC and RS-232C device.
The FX3U-232ADP-MB features all functionality that is available with the FX3U-
232ADP, except that it also has MODBUS communication available.
1.1 Communication Function
1.2 Incorporated Items
Verify that the following product and items are included in the package:
Manual name Manual No. Description
FX3S/FX3G/FX3GC/FX3U/
FX3UC Series User’s Manual
- MODBUS Serial
Communication Edition
JY997D26201 Explains the MODBUS serial
communication network.
Communication type Function
Computer link Data transfer via dedicated protocol between PLC and
computer (specified as the master station).
Non-protocol
communication
Serial communication via non-protocol between PLC and
RS-232C device.
Programming
communication
Optional port available for suitable programming tool when
232ADP-MB is connected to PLC.
Remote maintenance Program transfer or monitoring enabled via modem and
phone line connected to serial port of PLC.
MODBUS
communication Data transfer between a master and a slave.
Product FX3U-232ADP-MB communication special adapter
Accessories Installation manual (This manual)
1.3 External Dimensions and Part Names
1.4 Pin Configuration
The pin configuration of the RS-232C port on the 232ADP-MB is as shown below.
[1] DIN rail mounting groove (DIN rail: DIN46277)
[2] Name plate
[3] Special adapter slide lock:
Used to connect special adapter on left side of this special adapter.
[4] Special adapter connector cover:
Remove this cover for connecting special adapter 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-232C device.
[8] SD LED (red):
Lit while sending data to connected RS-232C device.
[9] Special adapter connector:
Used to connect this special adapter to PLC main unit or special adapter.
[10] RS-232C connector (9-pin D-Sub, male):
Connect RS-232C device to this RS-232C connector
[11] Screws to fix a cable connector: Screw holes #4-40UNC (inch screw thread)
[12] DIN rail mounting hook
[13] Special adapter fixing hook
[14] Special adapter connector:
Used to connect communication special adapter or analog special adapter to
this adapter on left side.
Pin
No. Signal Name Function
1CD
(DCD)
Receive
carrier
detection
ON when carrier for data reception
is detected.
(RS-232C device to 232ADP
-MB )
2RD
(RXD)
Receive
data
Receive data
(RS-232C device to 232ADP
-MB )
3SD
(TXD) Send data
Send data
(232ADP
-MB to RS-232C device)
4ER
(DTR)
Send
request
ON when RS-232C device is ready
to receive data.
(232ADP
-MB to RS-232C device)
5SG
(GND)
Signal
ground
Signal ground
(232ADP
-MB to RS-232C device)
6DR
(DSR)
Send
enable
ON when send request is made
toward RS-232C device.
(RS-232C device to 232ADP
-MB )
7,8,9 Not used
[3]
[6]
[5]
[7]
[8]
[9]
[10]
[11]
[12]
[14]
[13]
[2]
[4]
[1]
74(2.92")
Weight: Approx. 80 g (0.18 lbs)
Special adapter
connector cover
is removed
7(0.28")
90(3.55") 98(3.86")
(mounting hole pitch)
106(4.18")
17.6
(0.7")
7.5
(0.29")
15.1
(0.6")
Screws to fix
RS-232C
connector
1
5
6
9
Screw holes:
#4-40UNC
(inch screw
thread)
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
FX3S 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.
FX3U/FX3UC-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
Main unit
(ch1)
FX 3U -
232ADP
-MB
Analog
special
adapter
FX 3S -
CNV-ADP
Main unit
(ch1)(ch2)
Analog
special
adapter
Analog
special
adapter
FX
3U -
232ADP
-MB
FX 3U -
232ADP
-MB
FX3G-
CNV-ADP
Main unit
(ch1)
Communication
expansion board (ch2)
Analog
special
adapter
FX
3U -
232ADP
-MB
Analog
special
adapter
FX 3G -
CNV-ADP
Main unit
(ch1)
FX 3U -
232ADP
-MB
Analog
special
adapter
FX 3G -
CNV-ADP
Main unit
(ch1)(ch2)
Analog
special
adapter
Analog
special
adapter
FX
3U -
232ADP
-MB
FX 3U -
232ADP
-MB
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
FX 3U -
232ADP
-MB
Main unit
Communication
expansion board (ch1)
(ch2)
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
FX 3U -
232ADP
-MB
Analog
special
adapter
FX 3U -
232ADP
-MB
Main unit
FX 3U -CNV-BD(ch1)(ch2)
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.
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.
Dismount 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 installation of expansion board, refer to the following manual:
→ FX3U Series User's Manual - Hardware Edition
3) Remove the special adapter connector cover
on the expansion board (Right fig.A).
In case of 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 (Right
fig.B) of the main unit.
In case of 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
(Right fig.C) to
the main unit as
shown on the
right.
6) Slide back the
special adapter
slide lock (Right
fig.B) of the main
unit to fix the
special adapter
(Right 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 a
communication or analog special adapter.
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, Cl 2 , H 2 S, SO 2 , or NO 2 ), 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 that cutting and wiring debris
do not enter the ventilation slits of the PLC.
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.
Main unit
(ch1)(ch2)
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
FX
3U -
232ADP
-MB
FX 3U -
232ADP
-MB
RUN
STOP
FXFX
3U3U
-48MR/ES-48MR/ES
FX
3U
-48M
3)
4)
B
B
A
4)
RUN
STOP
FXFX
3U3U
-48MR/ES-48MR/ES
FXFX
3U3U
-48M-48M
POWER
RD
SD
FX
3U
-232ADP
-MB
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
→ FX3S/FX3G/FX3GC/FX3U/FX3UC Series User’s Manual
- MODBUS Serial Communication Edition
5. Specification
5.1 Applicable PLC
The version number can be checked by monitoring D8001/D8101, as well the last three
digits indicate the version number.
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.
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:
- 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.
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 impacts larger
than those specified in the general specifications by using dedicated packaging
boxes and shock-absorbing palettes. Failure to do so may cause failures in the
product. After transportation, verify operation of the product and check for damage
of the mounting part, etc.
Model name Applicability
FX3S Series PLC Ver. 1.00 or later for all communication functions
FX3G Series PLC
Ver. 1.30 or later for MODBUS communication
Ver. 1.00 or later for all communication functions except
MODBUS
FX3GC Series PLC Ver. 1.40 or later for all communication functions
FX3U Series PLC
Ver. 2.40 or later for MODBUS communication
Ver. 2.20 or later for all communication functions except
MODBUS
FX3UC Series PLC
Ver. 2.40 or later for MODBUS communication
Ver. 1.00 or later for all communication functions except
MODBUS
Item Specification
Dielectric withstand
voltage 500 V AC, one minute
Between terminal block and
ground terminal of PLC main unit
Insulation resistance
5 MΩor higher by 500 V
DC insulation resistance
tester
5.3 Power Supply Specification
5.4 Performance Specification
*1 Applicable for FX3U/FX3UC Series PLC Ver. 2.41 or later and FX3S/FX3G/FX3GC
Series PLC.
*2 When you set the baud rate to 38400 bps or more in a FX3S/FX3G/FX3GC Series
PLC, please set D8411 (D8431) to be 3 ms or more. When D8411 (D8431) is set
at less than 3 ms, it may not be able to communicate normally.
*3 Applicable for products manufactured in July, 2012 or later (manufacturer's serial
number: 127**** or later). The year and month of production of the special
adapter can be checked from the manufacturer's serial number "S/N" indicated
on the label.
For manufacturer's serial number, refer to the following manual.
→ FX3S/FX3G/FX3GC/FX3U/FX3UC SERIES USER'S MANUAL
- MODBUS Serial Communication Edition
6. 「电器电子产品有害物质限制使用标识要求」的表示方式
Note: This symbol mark is for China only.
含有有害6物质的名称，含有量，含有部品
本产品中所含有的有害6物质的名称，含有量，含有部品如下表所示。
产品中有害物质的名称及含量
本表格依据SJ/T 11364的规定编制。
○:表示该有害物质在该部件所有均质材料中的含量均在GB/T 26572规
定的限量要求以下。
×:表示该有害物质至少在该部件的某一均质材料中的含量超出GB/T
26572规定的限量要求。
Item Specification
Current consumption
30 mA
5 V DC power is supplied internally from the main unit.
Item Specification
Transmission
standard Conforming to RS-232C
Type of isolation Photocoupler isolation
Transmission
distance 15 m (49’ 2") or less
Connection method 9-pin D-Sub connector (male)
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 Full-duplex
Baud rate
Computer link, and Non-protocol 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.:
300/600/1200/2400/4800/9600/19200/38400*1 bps
Programming communication:
9600/19200/38400/57600/115200 bps
Remote maintenance: 9600 bps
MODBUS communication*2:
300/600/1200/2400/4800/9600/19200/38400
*3
/57600
*3
/
115200*3 bps
Communication
format
Computer link (dedicated protocol: format 1/format 4),
Non-protocol, Programming communication, Remote
maintenance, and MODBUS communication
LED display:
LED color Power: green, RD: red, SD: red
部件名称
有害物质
铅
(Pb)
汞
(Hg)
镉
(Cd)
六价铬
(Cr(VI))
多溴联苯
(PBB)
多溴
二苯醚
(PBDE)
可编程
控制器
外壳 ○ ○ ○ ○ ○ ○
印刷基板 × ○ ○ ○ ○ ○
Side
A
Side
B
JAPANESE
ENGLISH
JY997D26401G
Side
B
FX3U-232ADP-MB
Installation Manual
This manual describes the part names, dimensions, mounting, and specifications
of the product. Before use, read this manual and manuals of 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:
MODBUSis a registered trademark of Schneider Electric SA.
The company name and the product name to be described in this manual are the
registered trademarks or trademarks of each company.
Effective November 2016
Specifications are subject to change without notice.
©2007 Mitsubishi Electric Corporation
Manual Number JY997D26401
Revision G
Date November 2016

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
Exclusion of loss in opportunity and secondary loss from warranty liability
Regardless of the gratis warranty term, Mitsubishi shall not be liable for compensation to:
(1) Damages caused by any cause found not to be the responsibility of Mitsubishi.
(2)
Loss in opportunity, lost profits incurred to the user by Failures of Mitsubishi products.
(3) Special damages and secondary damages whether foreseeable or not, compensation for
accidents, and compensation for damages to products other than Mitsubishi products.
(4) Replacement by the user, maintenance of on-site equipment, start-up test run
and other tasks.
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 : TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
Safety Precautions (Read these precautions before use.)
This manual classify 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
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 FX3S Series PLC
specification details for I/O,
wiring, installation, and
maintenance.
FX3G Series User’s Manual
- Hardware Edition
JY997D31301
MODEL CODE:
09R521
Explains FX3G Series PLC
specification details for I/O,
wiring, installation, and
maintenance.
FX3GC Series User’s Manual
- Hardware Edition
JY997D45401
MODEL CODE:
09R533
Explains FX3GC Series PLC
specification details for I/O,
wiring, installation, and
maintenance.
FX3U Series User’s Manual
- Hardware Edition
JY997D16501
MODEL CODE:
09R516
Explains FX3U Series PLC
specification details for I/O,
wiring, installation, and
maintenance.
FX3UC Series User’s Manual
- Hardware Edition
JY997D28701
MODEL CODE:
09R519
Explains FX3UC Series PLC
specification details for I/O,
wiring, installation, and
maintenance.
FX 3S /FX 3G /FX 3GC /FX 3U /
FX
3UC 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
Describes N:N link, parallel
link, computer link, no
protocol communication by
RS instructions/FX2N-232IF.
How to obtain manuals
For the necessary product manuals or documents, consult with the Mitsubishi Electric
dealer from where you purchase your product.
Applicable standards
FX3U-232ADP-MB units made in April, 2007 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. JY997D50301)
→ FX3UC (D, DS, DSS) Series Hardware Manual (Manual No. JY997D50501)
→ 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.
1. Outline
The FX3U-232ADP-MB communication special adapter (hereinafter called 232ADP-
MB) is a special adapter for RS-232C communication with an 9-pin D-Sub connector.
232ADP-MB is an isolated signal exchange unit of the RS-232C serial data
communication between the PLC and RS-232C device.
The FX3U-232ADP-MB features all functionality that is available with the FX3U-
232ADP, except that it also has MODBUS communication available.
1.1 Communication Function
1.2 Incorporated Items
Verify that the following product and items are included in the package:
Manual name Manual No. Description
FX3S/FX3G/FX3GC/FX3U/
FX3UC Series User’s Manual
- MODBUS Serial
Communication Edition
JY997D26201 Explains the MODBUS serial
communication network.
Communication type Function
Computer link Data transfer via dedicated protocol between PLC and
computer (specified as the master station).
Non-protocol
communication
Serial communication via non-protocol between PLC and
RS-232C device.
Programming
communication
Optional port available for suitable programming tool when
232ADP-MB is connected to PLC.
Remote maintenance Program transfer or monitoring enabled via modem and
phone line connected to serial port of PLC.
MODBUS
communication Data transfer between a master and a slave.
Product FX3U-232ADP-MB communication special adapter
Accessories Installation manual (This manual)
1.3 External Dimensions and Part Names
1.4 Pin Configuration
The pin configuration of the RS-232C port on the 232ADP-MB is as shown below.
[1] DIN rail mounting groove (DIN rail: DIN46277)
[2] Name plate
[3] Special adapter slide lock:
Used to connect special adapter on left side of this special adapter.
[4] Special adapter connector cover:
Remove this cover for connecting special adapter 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-232C device.
[8] SD LED (red):
Lit while sending data to connected RS-232C device.
[9] Special adapter connector:
Used to connect this special adapter to PLC main unit or special adapter.
[10] RS-232C connector (9-pin D-Sub, male):
Connect RS-232C device to this RS-232C connector
[11] Screws to fix a cable connector: Screw holes #4-40UNC (inch screw thread)
[12] DIN rail mounting hook
[13] Special adapter fixing hook
[14] Special adapter connector:
Used to connect communication special adapter or analog special adapter to
this adapter on left side.
Pin
No. Signal Name Function
1CD
(DCD)
Receive
carrier
detection
ON when carrier for data reception
is detected.
(RS-232C device to 232ADP
-MB )
2RD
(RXD)
Receive
data
Receive data
(RS-232C device to 232ADP
-MB )
3SD
(TXD) Send data
Send data
(232ADP
-MB to RS-232C device)
4ER
(DTR)
Send
request
ON when RS-232C device is ready
to receive data.
(232ADP
-MB to RS-232C device)
5SG
(GND)
Signal
ground
Signal ground
(232ADP
-MB to RS-232C device)
6DR
(DSR)
Send
enable
ON when send request is made
toward RS-232C device.
(RS-232C device to 232ADP
-MB )
7,8,9 Not used
[3]
[6]
[5]
[7]
[8]
[9]
[10]
[11]
[12]
[14]
[13]
[2]
[4]
[1]
74(2.92")
Weight: Approx. 80 g (0.18 lbs)
Special adapter
connector cover
is removed
7(0.28")
90(3.55") 98(3.86")
(mounting hole pitch)
106(4.18")
17.6
(0.7")
7.5
(0.29")
15.1
(0.6")
Screws to fix
RS-232C
connector
1
5
6
9
Screw holes:
#4-40UNC
(inch screw
thread)
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
FX3S 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.
FX3U/FX3UC-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
Main unit
(ch1)
FX 3U -
232ADP
-MB
Analog
special
adapter
FX 3S -
CNV-ADP
Main unit
(ch1)(ch2)
Analog
special
adapter
Analog
special
adapter
FX
3U -
232ADP
-MB
FX 3U -
232ADP
-MB
FX3G-
CNV-ADP
Main unit
(ch1)
Communication
expansion board (ch2)
Analog
special
adapter
FX
3U -
232ADP
-MB
Analog
special
adapter
FX 3G -
CNV-ADP
Main unit
(ch1)
FX 3U -
232ADP
-MB
Analog
special
adapter
FX 3G -
CNV-ADP
Main unit
(ch1)(ch2)
Analog
special
adapter
Analog
special
adapter
FX
3U -
232ADP
-MB
FX 3U -
232ADP
-MB
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
FX 3U -
232ADP
-MB
Main unit
Communication
expansion board (ch1)
(ch2)
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
FX 3U -
232ADP
-MB
Analog
special
adapter
FX 3U -
232ADP
-MB
Main unit
FX 3U -CNV-BD(ch1)(ch2)
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.
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.
Dismount 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 installation of expansion board, refer to the following manual:
→ FX3U Series User's Manual - Hardware Edition
3) Remove the special adapter connector cover
on the expansion board (Right fig.A).
In case of 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 (Right
fig.B) of the main unit.
In case of 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
(Right fig.C) to
the main unit as
shown on the
right.
6) Slide back the
special adapter
slide lock (Right
fig.B) of the main
unit to fix the
special adapter
(Right 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 a
communication or analog special adapter.
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, Cl 2 , H 2 S, SO 2 , or NO 2 ), 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 that cutting and wiring debris
do not enter the ventilation slits of the PLC.
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.
Main unit
(ch1)(ch2)
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
FX
3U -
232ADP
-MB
FX 3U -
232ADP
-MB
RUN
STOP
FXFX
3U3U
-48MR/ES-48MR/ES
FX
3U
-48M
3)
4)
B
B
A
4)
RUN
STOP
FXFX
3U3U
-48MR/ES-48MR/ES
FXFX
3U3U
-48M-48M
POWER
RD
SD
FX
3U
-232ADP
-MB
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
→ FX3S/FX3G/FX3GC/FX3U/FX3UC Series User’s Manual
- MODBUS Serial Communication Edition
5. Specification
5.1 Applicable PLC
The version number can be checked by monitoring D8001/D8101, as well the last three
digits indicate the version number.
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.
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:
- 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.
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 impacts larger
than those specified in the general specifications by using dedicated packaging
boxes and shock-absorbing palettes. Failure to do so may cause failures in the
product. After transportation, verify operation of the product and check for damage
of the mounting part, etc.
Model name Applicability
FX3S Series PLC Ver. 1.00 or later for all communication functions
FX3G Series PLC
Ver. 1.30 or later for MODBUS communication
Ver. 1.00 or later for all communication functions except
MODBUS
FX3GC Series PLC Ver. 1.40 or later for all communication functions
FX3U Series PLC
Ver. 2.40 or later for MODBUS communication
Ver. 2.20 or later for all communication functions except
MODBUS
FX3UC Series PLC
Ver. 2.40 or later for MODBUS communication
Ver. 1.00 or later for all communication functions except
MODBUS
Item Specification
Dielectric withstand
voltage 500 V AC, one minute
Between terminal block and
ground terminal of PLC main unit
Insulation resistance
5 MΩor higher by 500 V
DC insulation resistance
tester
5.3 Power Supply Specification
5.4 Performance Specification
*1 Applicable for FX3U/FX3UC Series PLC Ver. 2.41 or later and FX3S/FX3G/FX3GC
Series PLC.
*2 When you set the baud rate to 38400 bps or more in a FX3S/FX3G/FX3GC Series
PLC, please set D8411 (D8431) to be 3 ms or more. When D8411 (D8431) is set
at less than 3 ms, it may not be able to communicate normally.
*3 Applicable for products manufactured in July, 2012 or later (manufacturer's serial
number: 127**** or later). The year and month of production of the special
adapter can be checked from the manufacturer's serial number "S/N" indicated
on the label.
For manufacturer's serial number, refer to the following manual.
→ FX3S/FX3G/FX3GC/FX3U/FX3UC SERIES USER'S MANUAL
- MODBUS Serial Communication Edition
6. 「电器电子产品有害物质限制使用标识要求」的表示方式
Note: This symbol mark is for China only.
含有有害6物质的名称，含有量，含有部品
本产品中所含有的有害6物质的名称，含有量，含有部品如下表所示。
产品中有害物质的名称及含量
本表格依据SJ/T 11364的规定编制。
○:表示该有害物质在该部件所有均质材料中的含量均在GB/T 26572规
定的限量要求以下。
×:表示该有害物质至少在该部件的某一均质材料中的含量超出GB/T
26572规定的限量要求。
Item Specification
Current consumption
30 mA
5 V DC power is supplied internally from the main unit.
Item Specification
Transmission
standard Conforming to RS-232C
Type of isolation Photocoupler isolation
Transmission
distance 15 m (49’ 2") or less
Connection method 9-pin D-Sub connector (male)
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 Full-duplex
Baud rate
Computer link, and Non-protocol 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.:
300/600/1200/2400/4800/9600/19200/38400*1 bps
Programming communication:
9600/19200/38400/57600/115200 bps
Remote maintenance: 9600 bps
MODBUS communication*2:
300/600/1200/2400/4800/9600/19200/38400
*3
/57600
*3
/
115200*3 bps
Communication
format
Computer link (dedicated protocol: format 1/format 4),
Non-protocol, Programming communication, Remote
maintenance, and MODBUS communication
LED display:
LED color Power: green, RD: red, SD: red
部件名称
有害物质
铅
(Pb)
汞
(Hg)
镉
(Cd)
六价铬
(Cr(VI))
多溴联苯
(PBB)
多溴
二苯醚
(PBDE)
可编程
控制器
外壳 ○ ○ ○ ○ ○ ○
印刷基板 × ○ ○ ○ ○ ○
Side
A
Side
B
JAPANESE
ENGLISH
JY997D26401G
Side
B
FX3U-232ADP-MB
Installation Manual
This manual describes the part names, dimensions, mounting, and specifications
of the product. Before use, read this manual and manuals of 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:
MODBUSis a registered trademark of Schneider Electric SA.
The company name and the product name to be described in this manual are the
registered trademarks or trademarks of each company.
Effective November 2016
Specifications are subject to change without notice.
©2007 Mitsubishi Electric Corporation
Manual Number JY997D26401
Revision G
Date November 2016

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
Exclusion of loss in opportunity and secondary loss from warranty liability
Regardless of the gratis warranty term, Mitsubishi shall not be liable for compensation to:
(1) Damages caused by any cause found not to be the responsibility of Mitsubishi.
(2)
Loss in opportunity, lost profits incurred to the user by Failures of Mitsubishi products.
(3) Special damages and secondary damages whether foreseeable or not, compensation for
accidents, and compensation for damages to products other than Mitsubishi products.
(4) Replacement by the user, maintenance of on-site equipment, start-up test run
and other tasks.
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 : TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
Safety Precautions (Read these precautions before use.)
This manual classify 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
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 FX3S Series PLC
specification details for I/O,
wiring, installation, and
maintenance.
FX3G Series User’s Manual
- Hardware Edition
JY997D31301
MODEL CODE:
09R521
Explains FX3G Series PLC
specification details for I/O,
wiring, installation, and
maintenance.
FX3GC Series User’s Manual
- Hardware Edition
JY997D45401
MODEL CODE:
09R533
Explains FX3GC Series PLC
specification details for I/O,
wiring, installation, and
maintenance.
FX3U Series User’s Manual
- Hardware Edition
JY997D16501
MODEL CODE:
09R516
Explains FX3U Series PLC
specification details for I/O,
wiring, installation, and
maintenance.
FX3UC Series User’s Manual
- Hardware Edition
JY997D28701
MODEL CODE:
09R519
Explains FX3UC Series PLC
specification details for I/O,
wiring, installation, and
maintenance.
FX 3S /FX 3G /FX 3GC /FX 3U /
FX
3UC 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
Describes N:N link, parallel
link, computer link, no
protocol communication by
RS instructions/FX2N-232IF.
How to obtain manuals
For the necessary product manuals or documents, consult with the Mitsubishi Electric
dealer from where you purchase your product.
Applicable standards
FX3U-232ADP-MB units made in April, 2007 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. JY997D50301)
→ FX3UC (D, DS, DSS) Series Hardware Manual (Manual No. JY997D50501)
→ 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.
1. Outline
The FX3U-232ADP-MB communication special adapter (hereinafter called 232ADP-
MB) is a special adapter for RS-232C communication with an 9-pin D-Sub connector.
232ADP-MB is an isolated signal exchange unit of the RS-232C serial data
communication between the PLC and RS-232C device.
The FX3U-232ADP-MB features all functionality that is available with the FX3U-
232ADP, except that it also has MODBUS communication available.
1.1 Communication Function
1.2 Incorporated Items
Verify that the following product and items are included in the package:
Manual name Manual No. Description
FX3S/FX3G/FX3GC/FX3U/
FX3UC Series User’s Manual
- MODBUS Serial
Communication Edition
JY997D26201 Explains the MODBUS serial
communication network.
Communication type Function
Computer link Data transfer via dedicated protocol between PLC and
computer (specified as the master station).
Non-protocol
communication
Serial communication via non-protocol between PLC and
RS-232C device.
Programming
communication
Optional port available for suitable programming tool when
232ADP-MB is connected to PLC.
Remote maintenance Program transfer or monitoring enabled via modem and
phone line connected to serial port of PLC.
MODBUS
communication Data transfer between a master and a slave.
Product FX3U-232ADP-MB communication special adapter
Accessories Installation manual (This manual)
1.3 External Dimensions and Part Names
1.4 Pin Configuration
The pin configuration of the RS-232C port on the 232ADP-MB is as shown below.
[1] DIN rail mounting groove (DIN rail: DIN46277)
[2] Name plate
[3] Special adapter slide lock:
Used to connect special adapter on left side of this special adapter.
[4] Special adapter connector cover:
Remove this cover for connecting special adapter 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-232C device.
[8] SD LED (red):
Lit while sending data to connected RS-232C device.
[9] Special adapter connector:
Used to connect this special adapter to PLC main unit or special adapter.
[10] RS-232C connector (9-pin D-Sub, male):
Connect RS-232C device to this RS-232C connector
[11] Screws to fix a cable connector: Screw holes #4-40UNC (inch screw thread)
[12] DIN rail mounting hook
[13] Special adapter fixing hook
[14] Special adapter connector:
Used to connect communication special adapter or analog special adapter to
this adapter on left side.
Pin
No. Signal Name Function
1CD
(DCD)
Receive
carrier
detection
ON when carrier for data reception
is detected.
(RS-232C device to 232ADP
-MB )
2RD
(RXD)
Receive
data
Receive data
(RS-232C device to 232ADP
-MB )
3SD
(TXD) Send data
Send data
(232ADP
-MB to RS-232C device)
4ER
(DTR)
Send
request
ON when RS-232C device is ready
to receive data.
(232ADP
-MB to RS-232C device)
5SG
(GND)
Signal
ground
Signal ground
(232ADP
-MB to RS-232C device)
6DR
(DSR)
Send
enable
ON when send request is made
toward RS-232C device.
(RS-232C device to 232ADP
-MB )
7,8,9 Not used
[3]
[6]
[5]
[7]
[8]
[9]
[10]
[11]
[12]
[14]
[13]
[2]
[4]
[1]
74(2.92")
Weight: Approx. 80 g (0.18 lbs)
Special adapter
connector cover
is removed
7(0.28")
90(3.55") 98(3.86")
(mounting hole pitch)
106(4.18")
17.6
(0.7")
7.5
(0.29")
15.1
(0.6")
Screws to fix
RS-232C
connector
1
5
6
9
Screw holes:
#4-40UNC
(inch screw
thread)
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
FX3S 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.
FX3U/FX3UC-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
Main unit
(ch1)
FX 3U -
232ADP
-MB
Analog
special
adapter
FX 3S -
CNV-ADP
Main unit
(ch1)(ch2)
Analog
special
adapter
Analog
special
adapter
FX
3U -
232ADP
-MB
FX 3U -
232ADP
-MB
FX3G-
CNV-ADP
Main unit
(ch1)
Communication
expansion board (ch2)
Analog
special
adapter
FX
3U -
232ADP
-MB
Analog
special
adapter
FX 3G -
CNV-ADP
Main unit
(ch1)
FX 3U -
232ADP
-MB
Analog
special
adapter
FX 3G -
CNV-ADP
Main unit
(ch1)(ch2)
Analog
special
adapter
Analog
special
adapter
FX
3U -
232ADP
-MB
FX 3U -
232ADP
-MB
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
FX 3U -
232ADP
-MB
Main unit
Communication
expansion board (ch1)
(ch2)
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
FX 3U -
232ADP
-MB
Analog
special
adapter
FX 3U -
232ADP
-MB
Main unit
FX 3U -CNV-BD(ch1)(ch2)
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.
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.
Dismount 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 installation of expansion board, refer to the following manual:
→ FX3U Series User's Manual - Hardware Edition
3) Remove the special adapter connector cover
on the expansion board (Right fig.A).
In case of 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 (Right
fig.B) of the main unit.
In case of 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
(Right fig.C) to
the main unit as
shown on the
right.
6) Slide back the
special adapter
slide lock (Right
fig.B) of the main
unit to fix the
special adapter
(Right 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 a
communication or analog special adapter.
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, Cl 2 , H 2 S, SO 2 , or NO 2 ), 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 that cutting and wiring debris
do not enter the ventilation slits of the PLC.
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.
Main unit
(ch1)(ch2)
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
Analog
special
adapter
FX
3U -
232ADP
-MB
FX 3U -
232ADP
-MB
RUN
STOP
FXFX
3U3U
-48MR/ES-48MR/ES
FX
3U
-48M
3)
4)
B
B
A
4)
RUN
STOP
FXFX
3U3U
-48MR/ES-48MR/ES
FXFX
3U3U
-48M-48M
POWER
RD
SD
FX
3U
-232ADP
-MB
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
→ FX3S/FX3G/FX3GC/FX3U/FX3UC Series User’s Manual
- MODBUS Serial Communication Edition
5. Specification
5.1 Applicable PLC
The version number can be checked by monitoring D8001/D8101, as well the last three
digits indicate the version number.
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.
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:
- 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.
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 impacts larger
than those specified in the general specifications by using dedicated packaging
boxes and shock-absorbing palettes. Failure to do so may cause failures in the
product. After transportation, verify operation of the product and check for damage
of the mounting part, etc.
Model name Applicability
FX3S Series PLC Ver. 1.00 or later for all communication functions
FX3G Series PLC
Ver. 1.30 or later for MODBUS communication
Ver. 1.00 or later for all communication functions except
MODBUS
FX3GC Series PLC Ver. 1.40 or later for all communication functions
FX3U Series PLC
Ver. 2.40 or later for MODBUS communication
Ver. 2.20 or later for all communication functions except
MODBUS
FX3UC Series PLC
Ver. 2.40 or later for MODBUS communication
Ver. 1.00 or later for all communication functions except
MODBUS
Item Specification
Dielectric withstand
voltage 500 V AC, one minute
Between terminal block and
ground terminal of PLC main unit
Insulation resistance
5 MΩor higher by 500 V
DC insulation resistance
tester
5.3 Power Supply Specification
5.4 Performance Specification
*1 Applicable for FX3U/FX3UC Series PLC Ver. 2.41 or later and FX3S/FX3G/FX3GC
Series PLC.
*2 When you set the baud rate to 38400 bps or more in a FX3S/FX3G/FX3GC Series
PLC, please set D8411 (D8431) to be 3 ms or more. When D8411 (D8431) is set
at less than 3 ms, it may not be able to communicate normally.
*3 Applicable for products manufactured in July, 2012 or later (manufacturer's serial
number: 127**** or later). The year and month of production of the special
adapter can be checked from the manufacturer's serial number "S/N" indicated
on the label.
For manufacturer's serial number, refer to the following manual.
→ FX3S/FX3G/FX3GC/FX3U/FX3UC SERIES USER'S MANUAL
- MODBUS Serial Communication Edition
6. 「电器电子产品有害物质限制使用标识要求」的表示方式
Note: This symbol mark is for China only.
含有有害6物质的名称，含有量，含有部品
本产品中所含有的有害6物质的名称，含有量，含有部品如下表所示。
产品中有害物质的名称及含量
本表格依据SJ/T 11364的规定编制。
○:表示该有害物质在该部件所有均质材料中的含量均在GB/T 26572规
定的限量要求以下。
×:表示该有害物质至少在该部件的某一均质材料中的含量超出GB/T
26572规定的限量要求。
Item Specification
Current consumption
30 mA
5 V DC power is supplied internally from the main unit.
Item Specification
Transmission
standard Conforming to RS-232C
Type of isolation Photocoupler isolation
Transmission
distance 15 m (49’ 2") or less
Connection method 9-pin D-Sub connector (male)
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 Full-duplex
Baud rate
Computer link, and Non-protocol 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.:
300/600/1200/2400/4800/9600/19200/38400*1 bps
Programming communication:
9600/19200/38400/57600/115200 bps
Remote maintenance: 9600 bps
MODBUS communication*2:
300/600/1200/2400/4800/9600/19200/38400
*3
/57600
*3
/
115200*3 bps
Communication
format
Computer link (dedicated protocol: format 1/format 4),
Non-protocol, Programming communication, Remote
maintenance, and MODBUS communication
LED display:
LED color Power: green, RD: red, SD: red
部件名称
有害物质
铅
(Pb)
汞
(Hg)
镉
(Cd)
六价铬
(Cr(VI))
多溴联苯
(PBB)
多溴
二苯醚
(PBDE)
可编程
控制器
外壳 ○ ○ ○ ○ ○ ○
印刷基板 × ○ ○ ○ ○ ○
Side
A
Side
B
JAPANESE
ENGLISH
JY997D26401G
Side
B
FX3U-232ADP-MB
Installation Manual
This manual describes the part names, dimensions, mounting, and specifications
of the product. Before use, read this manual and manuals of 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:
MODBUSis a registered trademark of Schneider Electric SA.
The company name and the product name to be described in this manual are the
registered trademarks or trademarks of each company.
Effective November 2016
Specifications are subject to change without notice.
©2007 Mitsubishi Electric Corporation
Manual Number JY997D26401
Revision G
Date November 2016