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JAPANESE

ENGLISH

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B

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.

HEAD OFFICE
HIMEJI WORKS

 : TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
 : 840, CHIYODA CHO, HIMEJI, JAPAN

FX

2N

-485-BD

USER’S GUIDE

JY992D74401D

This manual contains text, diagrams and explanations which will guide the reader in the correct 
installation, safe use and operation of the FX

2N

-485-BD (hereafter abbreviated to "485BD") and should be

read and understood before attempting to install or use the unit. Further information can be found in the
associated manuals mentioned below.
Specifications are subject to change without notice

Safety guidelines for the user and protection of the FX

2N

-485-BD.

This manual has been written to be used by trained and competent personnel. The definition of such a
person or persons is as follows:

a) Any engineer using the product associated with this manual, should be of a competent nature,

trained and qualified to the local and national standards. These engineers should be fully aware of
all aspects of safety with regards to automated equipment.

b) Any commissioning or service engineer must be of a competent nature, trained and qualified to

the local and national standards.

c)

All operators of the completed equipment should be trained to use this product in a safe and
coordinated manner in compliance to established safety practices.

Note:

The term ‘completed equipment’ refers to a third party constructed device which contains or uses
the product associated with this manual.

Notes on the Symbols Used in this Manual

At various times throughout this manual certain symbols will be used to highlight points of information
which are intended to ensure the users personal safety and protect the integrity of equipment.

1) Indicates that the identified danger 

WILL

 cause physical and property damage.

2) Indicates that the identified danger could 

POSSIBLY

 cause physical and property

damage.

Under no circumstances will Mitsubishi Electric be liable or responsible for any consequential damage
that may arise as a result of the installation or use of this equipment.

All examples and diagrams shown in this manual are intended only as an aid to understanding the
text, not to guarantee operation. Mitsubishi Electric will accept no responsibility for the actual use of
the product based on these illustrative examples.

Please contact a Mitsubishi distributor for more information concerning applications in life critical
situations or high reliability.

Associated Manuals

PROGRAMMING MANUAL, PROGRAMMING MANUAL 

ΙΙ

, or FX Series User’s Manual - Data

Communication Edition mentioned below are not provided in sets with a product.
Contact our agent where the product was purchased to request the manuals accordingly.

Indispensable manual

Manual Name

Manual

Number

Description

FX Series User's Manual - Data 
Communication Edition

JY997D16901

Describes contents related to communication 
available in FX Series PLC such as wiring, 
communication setting, and program examples.

FX

2N

 HARDWARE MANUAL

JY992D66301

Describes contents related to hardware of FX

2N

 

Series PLC such as specifications, wiring, and 
installation.

PROGRAMMING MANUAL 

ΙΙ

JY992D88101

Describes contents related to instruction in FX

1S

/

FX

1N

/FX

2N

/FX

2NC

 Series PLC.

This manual describes the installation the and specifications of the 485BD.
For details on wiring (including use of terminal resistor and preparation of cable) with communication equipment, 
system configuration and communication setting, and program examples, refer to the "FX Series User's Manual - Data 
Communication Edition".

1. Outline of Product

The 485BD is an insulated RS-485 communication board with an European type terminal block.
Connected to the main unit of the FX

2N

 Series PLC, it enables signal exchange between the PLC and

equipment via an RS-485 port.

1.1 Communication Functions and Applicable PLC 

(Available in indicated version or later)

1.2 Outside dimensions and name of each part

Unit: mm (inches)

Accessories: Terminal resistor 330

   2

Terminal resistor 110

   1

M3 screw to mount board   2
Station No. label for link

Mounting hole (2-

φ

3.5)

Terminal block for RS-485 equipment
The top face of this terminal box is higher than the top face
of the PLC panel cover by approximately 7 mm (0.27").

SD LED: Flickers at high speed during send.

RD LED: Flickers at high speed during receive.

Connector for PLC 

1.3 System configuration

Only one function expansion board can be used for one main unit of FX

2N

FX

2N

-485-BD cannot be used by the plural. Other expansion boards cannot be used together with 

FX

2N

-485-BD.For the system configuration, refer to the FX Series User's Manual - Data Communication

Edition offered separately.

2. Installation

Caution

• Use in the environments specified under the general specification in the manual. 

Do not use the product in environments with excessive or conductive dust, corrosive or
flammable gas, oily smoke, moisture or rain, excessive heat, regular impact shocks or
excessive vibration, as it may result in electrical shock, fire, malfunction, damage or
deterioration on the product.

• Make sure to shut off the power outside the product before installing or wiring it. 

Otherwise, electric shock or serious damage to on the product may occur.

• Never drop wire chips or shavings into the vent slits when drilling screw holes or performing

wiring, as they may cause fire, breakdown, or malfunction.

Securely install the 485BD to the designated port. 
Poor connection may cause malfunction.

2.1 Installation procedure

Turn off the power of the programmable controller, and mount the
485BD using the following procedure.

Remove the panel cover from the top face of the base unit.

Connect the connector for programmable controller provided on
the 485BD to the board mounting connector provided on the
base unit.

Fix the 485BD to the base unit using the M3 self-tapping screws
supplied. Tightening torque: 0.3 to 0.6 N

y

m

Remove the cut out on the left of the panel cover using a tool
such  as  nippers or cutters so that the ter minal block is
accessible. The top face of this terminal block is higher than the
top face of the panel cover of the programmable controller by
approximately 7 mm  (0.27").

Communication 

type

FX

2N

Function

N:N network

V2.00

Data transfer connecting up to eight FX Series PLCs.

Parallel link

V1.04

Data transfer between two PLCs relationship specifying master/slave station.

Computer link

V1.06

Data transfer via link protocol between PLC and computer (specified as the master 
station).

No protocol 
communication

V1.06

Serial communication without protocol between PLC and equipment via RS-485 
interface.

Inverter 
communication

V3.00

Controlling Mitsubishi's FREQROL inverter using EXTR instruction in function 
expansion memory.

0.6mm
(0.02")

3.5mm
(0.13")

The end

should be

straight.

Recommended screwdriver to

tighten terminal screws

35(1.38")

39(1.54"

)

52(2.05"

)

46(1.81"

)

2

3

1

4

5

" & # * ,

!

"

 

3. Specifications

3.1 Environmental specifications

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

5V DC, 60 mA is supplied as the power from the PLC.

3.3 Performance specifications

Item

Description

Transmission standard

In conformance to RS-485 and RS-422

Maximum transmission 
distance

50m (164ft) maximum

Communication type

No protocol communication, Computer link (dedicated protocol), 
parallel link, N:N network 

Communication method

Full-duplex (When the version of PLC(FX

2N

) is Ver. 2.00 or later) / 

Half-duplex (When the version of PLC(FX

2N

) is earlier than Ver. 2.00)

Communication 
procedure

No protocol communication, Computer link (dedicated protocol 1, 
dedicated protocol 4), parallel link, N:N network 

Transmission speed
(baud rate)

No protocol communication, Computer link (dedicated protocol): 
300/600/1200/2400/4800/9600/19200 (bps)
Parallel link:   19200(bps)
N:N network:  38400(bps)

Insulation

None

Manual number : JY992D74401

Manual revision : D

Date

: AUGUST 2006

Содержание FX2N-485-BD

Страница 1: ...he FX2N Series PLC it enables signal exchange between the PLC and equipment via an RS 485 port 1 1 Communication Functions and Applicable PLC Available in indicated version or later 1 2 Outside dimensions and name of each part Unit mm inches Accessories Terminal resistor 330Ω 2 Terminal resistor 110Ω 1 M3 screw to mount board 2 Station No label for link Mounting hole 2 φ3 5 Terminal block for RS 4...

Страница 2: ...he FX2N Series PLC it enables signal exchange between the PLC and equipment via an RS 485 port 1 1 Communication Functions and Applicable PLC Available in indicated version or later 1 2 Outside dimensions and name of each part Unit mm inches Accessories Terminal resistor 330Ω 2 Terminal resistor 110Ω 1 M3 screw to mount board 2 Station No label for link Mounting hole 2 φ3 5 Terminal block for RS 4...

Страница 3: ...he FX2N Series PLC it enables signal exchange between the PLC and equipment via an RS 485 port 1 1 Communication Functions and Applicable PLC Available in indicated version or later 1 2 Outside dimensions and name of each part Unit mm inches Accessories Terminal resistor 330Ω 2 Terminal resistor 110Ω 1 M3 screw to mount board 2 Station No label for link Mounting hole 2 φ3 5 Terminal block for RS 4...

Страница 4: ...he FX2N Series PLC it enables signal exchange between the PLC and equipment via an RS 485 port 1 1 Communication Functions and Applicable PLC Available in indicated version or later 1 2 Outside dimensions and name of each part Unit mm inches Accessories Terminal resistor 330Ω 2 Terminal resistor 110Ω 1 M3 screw to mount board 2 Station No label for link Mounting hole 2 φ3 5 Terminal block for RS 4...

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