FX3U-485-BD is a expansion board equipped with an European terminal block for RS-485 communication. FX3U-485-BD exchanges data RS-485 devices.

1.1 Incorporated Items of Mitsubishi FX3U-485-BD

1.2 Communication Function of Mitsubishi FX3U-485-BD

1.3 External Dimensions and Part Names of Mitsubishi FX3U-485-BD

Installation of Mitsubishi FX3U-485-BD

INSTALLATION PRECAUTIONS of Mitsubishi FX3U-485-BD

• Cut off all phases of the power source externally before starting the installation or wiring work, thus avoiding electric shock or damages to the product.

• Use the product in the environment within the general specifications described in PLC main unit manual (Hardware Edition).
Never use the product in areas with dust, oily smoke, conductive dusts, corrosive gas (salt air, Cl2, H2S, NH3, SO2, or NO2), flammable gas, vibrations or impacts, or expose it to high temperature, condensation, or wind and rain.If the product is used in such a place described above, electrical shock, fire,malfunction, damage, or deterioration may be caused.
• Use screwdrivers carefully when performing installation work, thus avoiding accident or product damage.
• When drilling screw holes or wiring, cutting chips or wire chips should not enter ventilation slits.Such an accident may cause fire, failure or malfunction.
• Do not touch the conductive parts of the product directly, thus avoiding failure or malfunction.
• Fix the expansion board securely to the specified connector. Incorrect connection may cause malfunction.

The following explains the installation method to FX3U/FX3UC Series PLC (FX3U Series PLC is used for the following example).
For removing and installing details, refer to the PLC main unit manual. However, FX3UC Series PLC manual is only available in Japanese.

2.1 Installation Method of Mitsubishi FX3U-485-BD

• Refer to the procedure 2) for configuring a new system.
• Refer to the procedure 1) for adding product to an existing system.
1) Power off the PLC.
Disconnect all the cables connected to the PLC.
Dismount the PLC from the DIN rail.
2) Using a flat blade screwdriver as shown in the right figure, lift the little dummy expansion board cover (right fig. A). Do not damage the circuit board or electronic parts.
3) Remove the dummy expansion board cover (right fig. A) in a parallel motion away from the main unit.
4) Make sure the expansion board (right fig. B) is in parallel with the main unit (right fig. C) and fix it to the expansion board connector.
5) Fix the expansion board (right fig. B) to the main unit using the M3 tapping screws of the provided (right fig. D).
Tighten to a torque: 0.3 to 0.6 N⋅m

Specification of Mitsubishi FX3U-485-BD

STARTUP AND MAINTENANCE PRECAUTIONS of Mitsubishi FX3U-485-BD

• Do not disassemble or modify the unit.
  Doing so may cause failure, malfunction or fire.
  * For repair, contact your local Mitsubishi Electric distributor.
• Do not drop the product or do not exert strong impact, doing so may cause damage.

DISPOSAL PRECAUTIONS of Mitsubishi FX3U-485-BD

• Please contact a company certified in the disposal of electronic waste for environmentally safe recycling and disposal of the product.

TRANSPORT AND STORAGE PRECAUTIONS of Mitsubishi FX3U-485-BD

• During transportation avoid any impact as the product is a precision instrument.
  Check the operation of the product after transportation.

3.1 Applicable PLC of Mitsubishi FX3U-485-BD

Only one function expansion board can be used for one main unit.
Two or more FX3U-485-BD cannot be used, or other expansion boards such as FX3U-422-BD or FX3U-232-BD cannot be installed/used together with FX3U-485-BD.

3.2 General Specifications of Mitsubishi FX3U-485-BD
General specifications are equivalent to the PLC main unit. For general specifications, refer to the following manual.
However, since the product is not isolated between communication lines and the CPU of main unit, please don't perform any dielectric withstand voltage test and insulation resistance test to this product.

3.3 Power supply specifications of Mitsubishi FX3U-485-BD
5V DC, 40 mA is supplied as the power from the main unit.

3.4 Communication specifications of Mitsubishi FX3U-485-BD

Our company (Kollewin Technology CO., Limited) have a new product, named FX3U-485-BD.

It is 100% compatible with Mitsubishi original FX3U-485-BD.

Part#: FX3U-485-BD

The unit price is USD29.90/pc  

USER'S MUNUAL PDF of communication board FX3U-485-BD:

RS-485 COMMUNICATION BOARD FX3U-485-BD

Specification of communication board FX3U-485-BD:

Description of communication board FX3U-485-BD:

• This is a RS-485 communication expansion board FX3U-485-BD. FX3U-485-BD is an expansion board equipped with an European temial black for RS-485 communication.
• The FX3u-485-BD exchange data with RS-485 devices.
• FX3U-485-BD:RS485 Board for FX3U PLC, anti-static electricity and surging protection.
• This is OEM product, not Mitsubishi original part.

More communication boards, please click below links:

FX2N-485-BD+

FX2N-485-BD

FX2N-422-BD

FX2N-232-BD

FX1N-485-BD

FX1N-422-BD

FX3U-485-BD

FX3U-422-BD

FX3U-232-BD

FX3U-USB-BD

FX2N-4DA

More pictures of communication board

Please feel free to contact me for any question!

Contact person: Miss Nancy

The RS-485 communication board FX1N-485-BD (hereafter referred to as "485BD") is connected to the FX1S/FX1N Series PLC basic unit, and available for the applications described below.
Only one function expansion board can be connected to one PLC basic unit. Accordingly, the 485BD cannot be used together with the FX1N-422-BD or the FX1N-232-BD.

1.1 Features of Mitsubishi FX1N-485-BD
1) Data transfer function using the non-procedure method.
The 485BD transfers the data using the RS instruction between a bar code reader, personal computer or printer.
As the 485BD is not equipped with buffer memory, it sends and receives the data using data registers specified by the RS instruction.
For the RS instruction and the communication setting, refer to the FX Series Communication User’s Manual.
2) Data transfer function using a dedicated protocol.
The 485BD transfers the data when a personal computer directly specifies devices of the PLC.
For the dedicated protocol and the communication setting, refer to the FX Series Communication User’s Manual.
3) Parallel link function.
The 485BD transfers automatically 50 auxiliary relays and 10 data registers when two FX1S Series PLC’s (two FX1N Series PLC’s) are connected on a one-to-one basis.
For the setting procedure and program examples, refer to the FX Series Communication User’s Manual.
4) Easy PC link function.
The 485BD transfers automatically up to 64 auxiliary relays and 8 data registers when up to eight FX1S/FX1N/FX0N/FX2N/FX2NC Series PLC units are connected. For the setting procedure and program examples, refer to the FX Series Communication User’s Manual. For the FX2N Series PLC, the version should be 2.00 or greater (manufacturer’s serial No. 780000 or later).

1.2 Outside dimensions and name of each part for Mitsubishi FX1N-485-BD
 

1.3 System configuration of Mitsubishi FX1N-485-BD

For the system configuration, refer to the FX Series Communication User’s Manual offered separately.

Installation of Mitsubishi FX1N-485-BD
 

2.1 Installation procedure of Mitsubishi FX1N-485-BD
 

Make sure to turn off the power before installing the 485BD.
A) Communication board 485BD (function expansion board)
B) Connector for optional equipment
C)M3 screw to fix board (2 pieces) (offered as accessories of board)
D) Top cover for board (offered as an accessory of board)
E) M3 screw to fix top cover (offered as an accessory of board)
Note: This screw cannot be removed.
• Plug the communication board A) in to the connector B).
• Fix the board to the basic unit with two M3 screws C). (Tightening torque: 0.3 to 0.6 Nxm)
• Remove the top cover of the basic unit, and attach the top cover for board D) instead.
During attachment, remove D)’ with a nipper, etc. so that the connector of the board is exposed.
• Fix the top cover with the M3 screw E). (Tightening torque: 0.3 to 0.6 Nxm)
• When the FX1N-5DM is used also, refer to the handy manual offered with the FX1S/FX1N Series PLC main unit.
• Only one function expansion board is available for one FX1S/FX1N Series PLC basic unit. Never stack up two or more function expansion boards. (Even if they are stacked up, they do not function at all.)

Specifications of Mitsubishi FX1N-485-BD

3.1 Environmental specifications of Mitsubishi FX1N-485-BD
The environmental specifications are equivalent to those of the PLC main unit. (Refer to the manual of the PLC main unit.)

3.2 Power supply specifications of Mitsubishi FX1N-485-BD
5V DC, 60 mA is supplied as the power from the PLC.

3.3 Performance specifications of Mitsubishi FX1N-485-BD

Guidelines for the safety of the user and protection to the RS-485 Communication Board FX1N-485-BD
• This manual has been written to be used by trained and competent personnel. This is defined by the European directives for machinery, low voltage and EMC.
• If in doubt at any stage during the installation of the RS-485 Communication Board FX1N-485-BD always consult a professional electrical engineer who is qualified and trained to the local and national standards. If in doubt about the operation or use of the RS-485 Communication Board FX1N-485-BD please consult the nearest Mitsubishi Electric distributor.
• Under no circumstances will Mitsubishi Electric be liable or responsible for any consequential damage that may arise as a result of the installation or use of this equipment.
• All examples and diagrams shown in this manual are intended only as an aid to understanding the text, not to guarantee operation. Mitsubishi Electric will accept no responsibility for actual use of the product based on these illustrative examples.
• Owing to the very great variety in possible application of this equipment, you must satisfy yourself as to its suitability for your specific application. 

Our company (Kollewin Technology CO., Limited) have a new product, named FX1N-485-BD.

It is 100% compatible with Mitsubishi original FX1N-485-BD.

Part#: FX1N-485-BD

The unit price is USD21.69/pc 

USER'S MUNUAL PDF of Mitsubishi communication board FX1N-485-BD:

RS-485 COMMUNICATION BOARD FX1N-485-BD

Specification of Mitsubishi communication board FX1N-485-BD:

More communication boards, please click below links:

FX2N-485-BD+

FX2N-485-BD

FX2N-422-BD

FX2N-232-BD

FX1N-485-BD

FX1N-422-BD

FX3U-485-BD

FX3U-422-BD

FX3U-232-BD

FX3U-USB-BD

FX2N-4DA

More pictures of communication board 

Please feel free to contact me for any question!

Contact person: Miss Nancy

The communication board FX2N-485-BD for RS485 (hereinafter referred to as “485BD”) can be connected to the base unit of the FX2N Series programmable controller to be used for the following applications.
1) Data transfer using no protocol
Data communication with diversified RS232C units including personal computers, bar code readers and printers can be performed via the RS485 (422) converter using the no protocol. In this application, data is sent or received using the data registers specified by the RS instruction. For the setting and program examples, refer to the FX Programming Manual and FX Communication User’s Manual.
2) Data transfer using the dedicated protocol
Data transfer with RS485 (422) units can be performed on the 1:N basis using the dedicated protocol.
For the contents of the dedicated protocol used in this application, refer to the FX Communication User’s Manual.
3) Data transfer using the parallel link
Data transfer with an FX2N programmable controller can be performed on the 1:1 basis for 100 auxiliary relays and 10 data registers. For the setting and program examples, refer to the FX Communication User’s Manual.
4) Data transfer using the N:N network
Data transfer with FX2N programmable controllers can be performed on the N:N basis. For the setting,the number of transferred data and program examples, refer to the FX Communication User’s Manual.

1.1 External Dimensions of Mitsubishi FX2N-485-BD

1.2 System Configuration of Mitsubishi FX2N-485-BD

1.2.1 No Protocol or Dedicated Protocol of Mistubishi FX2N-485-BD

1.2.2 Parallel Link of Mistubishi FX2N-485-BD

1.2.3 N:N Network of Mistubishi FX2N-485-BD

MUNTING AND WIRING of Mitsubishi FX2N-485-BD

2.1 Mounting Procedure to Mistubishi FX2N-485-BD

2.2  Cable and Terminal Resistor to connect the RS485 FX2N-485-BD

2.2.1 Cable to connect Mistubishi FX2N-485-BD
To connect the RS485 (422) unit, use a shielded twisted-pair cable.
The cable specification must be AWG 26 to 16, and the maximum tightening torque must be 0.6 N·m (6 kgf·cm). If a cable other than the AWG 26 to 16 is used, normal communication cannot be assured because the terminal may be imperfectly contacted. It is recommended to insert a cable integrated by the crimping tool into the terminal.

2.2.2 Terminal Resistor of Mistubishi FX2N-485-BD
Provide the terminal resistor at both ends of the line as described in section 2.3.2 and 2.3.3.
1) In the case of two-pair wiring, connect the terminal resistor (330W, 1/4W) between terminals SDA and SDB as well as between terminals RDA and RDB.

Use the resistors offered as accessories of the 485BD.
2) In the case of one-pair wiring, connect the terminal resistor (110W, 1/2W)between terminals RDA and RDB. Use the resistors offered as accessories of the 485BD.

2.3 Wiring of Mitsubishi FX2N-485-BD

2.3.1 Selection of Wiring of Mistubishi FX2N-485-BD
Wiring of RS485 is one-pair wiring or two-pair wiring. The wiring method is decided according to the
usage. Please select the wiring method from the table below.

*1 When this product is added to the system, please match the wiring to the wiring method of the system.
*2 When using 485BD with, this wiring method remember to take account of/or ignore the “echo” of the commands sent from the FX2N programmable controller.
*3 Use FX2N programmable controller and 485BD together.
*4 For excluding the combination of 485BD, please see below.

2.3.2 Two-pair Wiring

*1 R is the terminating resistance. Connect the terminating resistance (330W) between terminals SDA and SDB, and terminals RDA and RDB.
*2 The shield of the shielded twisted-pair cable must be connected to ground (100W or less). When using parallel link, ground both side. When using no protocol or dedicated protocol, ground one side.
*3 Connect terminal FG to each terminal of the programmable controller main body grounded with resistance of 100 or less. However, for the computer link unit of the A series programmable controller, see the manual of the computer link unit.
*4 When using RS232/485 or RS232/422 interface, please the use FX-485PC-IF.

2.3.3 One-pair Wiring

*1 R is the terminating resistance. Connect the terminating resistance (110W) between terminals RDA and RDB.
*2 The shield of the shielded twisted-pair cable must be connected to ground (100W or less). When using parallel link, ground both side. When using no protocol or dedicated protocol, ground one side.
*3 Connect terminal FG to each terminal of the programmable controller main body grounded with resistance of 100 or less. However, for the computer link unit of the A series programmable controller, see the manual of the computer link unit.
*4 When using RS232/485 or RS232/422 interface, please the use FX-485PC-IF.

SPECIFICATIONS of Mitsubishi FX2N-485-BD

3.1 General Specifications of Mitsubishi FX2N-485-BD
General specifications are the same as those for the FX2N series programmable controller.

3.2 Power Supply Specification of Mitsubishi FX2N-485-BD
5V DC, 60 mA is supplied from the programmable controller.

3.3 Specification of Mitsubishi FX2N-485-BD

DIAGNOSTICS of Mitsubishi FX2N-485-BD

For error code of N:N network and computer link, refer to the FX Communication User’s Manual.

4.1 Common Items
1) Check the connection with the communication unit of the programmable controller and the wiring.
When the connection is unstable, the communication can not be corrected.
2) Check whether the VRRD or VRSC instruction is used in used in the program.
If it is used, delete it, turn off the power of the programmable controller, then turn it on again.
3) Each setting of communication format (D8120), parameter of programmable controller by FX-PCS/WIN-E, N:N network (D8173 to D8180) and parallel link (M8070, M8071) is suitable for the usage or it checks. The communication is not correctly done if setting is not suitable for the usage.
When each setting is changed, please turn off the power supply of the programmable controller, and turn it on again.
4) When you use FX0N-485ADP or FX-485ADP in network, please the power supply for the drive must be supplied correctly or check.

4.2 LED Check Items of Mitsubishi FX2N-485-BD
4.2.1 N:N Network
1) Check the status of the RD LED and the SD LED provided on each 485BD.
- If both of them are lit and extinguished, nothing is wrong.
- If the RD LED is lit/extinguished but the SD LED is not lit/extinguished (not lit at all), check the setting of the station No.,the baud rate (transmission rate) and the total number of salve stations.
- If the RD LED is not lit/extinguished, check the wiring.
2) Make sure that the communication error (FX2N: M8183 to M8190, FX0N: M504 to M511) in each slave station is not turned on and that the data communication flag (FX2N: M8191, FX0N: M503) is not turned off. When one of the communication error flag is turned on or if the data communication flag is turned off, check the error code of data registers (FX2N: D8211 to D8218, FX0N: D211 to D218).

For the error code, please see the FX Communication User’s Manual. 

4.3 Parallel Link
1) Check the status of the RD(RXD) LED and the SD(TXD) LED provided on each communication unit.
- If both of them are lit and extinguished, nothing is wrong.
- If the RD(RXD) LED is lit/extinguished but the SD(TXD) LED is not lit/extinguished (not lit at all),check the setting of the master station and the slave stations.
- If the RD(RXD) LED is not lit/extinguished, check the wiring.
2) Make sure that the master station and the slave stations are set correctly. If the setting is incorrect,correct it.
3) Make sure that the devices for the master station and the slave stations are handled correctly. If they are handled incorrectly, correct the program so that they are handled correctly.

4.4 Computer Link
1) Check the status of the RD(RXD) LED and the SD(TXD) LED provided on each communication unit.
- If both of them are lit and extinguished, nothing is wrong.
- If the RD(RXD) LED is lit/extinguished but the SD(TXD) LED is not lit/extinguished (not lit at all),check the setting of the station No. and the transmission rate (baud rate).
- If the RD(RXD) LED is not lit/extinguished, check the wiring and confirm the connection with the programmable controller.
2) Make sure that the communication procedure is performed correctly. If it is not performed correctly,correct the setting in the computer.
3) Check the NAK error code and programmable controller error code.
For the error code, please see the FX Communication User’s Manual.

4.5 RS Instruction
1) Check the status of the RD (RXD) LED and the SD (TXD) LED provided in an optional equipment.
- If the RD (RXD) LED is not lit while data is received or the SD (TXD) LED is not lit while data is sent, check the installation and the wiring.
- When the RD (RXD) LED is lit while data is received or the SD (TXD) LED is lit while data is sent, the installation and the wiring are correct.
2) Make sure the timing of data send/receive. For example, make sure that the counterpart equipment is ready for receive before starting to send data to it.
3) When the terminator is not used, check whether the send data capacity is equivalent to the acceptable data capacity. If the send data capacity may be changed, use the terminator.
4) Make sure that the external equipment is correctly operating.
5) Check whether the type of send data and the type of receive data are equivalent. If they are different,make them equivalent.
6) When two or more RS instructions are used in the program, make sure that only one RS instruction is actuated in one operation cycle. Never turn off the RS instruction while data is received or sent.
7) In the FX2N Series (V2.00 or later), an RS instruction is not executed if the counterpart equipment receives “NAK”.
Arrange the system so that the RS instruction is executed even if the counterpart equipment receives “NAK”.

Our company (Kollewin Technology CO., Limited) have new products.

Named FX2N-485-BD & FX2N-485-BD+ .

They are 100% compatible with Mitsubishi original FX2N-485-BD.

Part#: FX2N-485-BD

The unit price is USD21.00/pc 

Part#:FX2N-485-BD+

The unit price is USD62.89/pc

USER'S MUNUAL PDF of communication board FX2N-485-BD

FX2N-485-BD-USER'S MANUAL

Specification of communication board FX2N-485-BD:

Description of communication board FX2N-485-BD:

• FX2N are suitable for use with FX2N PLC's. FX2N-232-BD are used for RS-485 applications, such as communication with a PC, printer or bar code reader. and provide a second programming port which enables an operator panel (or HMI) and a programming panel to be connected to the PLC at the same time.
• This is a Replacement of Mitsubishi FX2N-485-BD Programmable Controller.
• This is OEM product, not Mitsubishi original part.

More communication boards, please click below links:

FX2N-485-BD+

FX2N-485-BD

FX2N-422-BD

FX2N-232-BD

FX1N-485-BD

FX1N-422-BD

FX3U-485-BD

FX3U-422-BD

FX3U-232-BD

FX3U-USB-BD

FX2N-4DA

More pictures of PLC communication board 

Please feel free to contact me for any question!

Contact person: Miss Nancy