A1SJ71QC24N1-R2用户手册三菱A1SJ71QC24N1-R2手册_广州菱控

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Serial Communication Module

User’s Manual

(Hardware)

A1SJ71QC24N1 A1SJ71QC24N1-R2

Thank you for buying the Mitsubishi general-purpose programmable logic controller MELSEC-QnA Series

Prior to use, please read both this manual and detailed manual thoroughly and familiarize yourself with the product.

MODEL A1SJ71QC24N1-U-HW MODEL

CODE 13JP85

IB(NA)-0800330-A(0512)MEE

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CAUTION

z SAFETY PRECAUTIONS z

(Always read these instructions before using this equipment.)

Before using this product, please read this manual and the relevant manuals introduced in this manual carefully and pay full attention to safety to handle the product correctly.

These precautions apply only to this product. For the PLC system safety precautions, refer to the user’s manual of your CPU module.

In this manual, the safety instructions are ranked as "DANGER" and "CAUTION".

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.

Note that the CAUTION level may lead to a serious consequence according to the circumstances.

Always follow the instructions of both levels because they are important to personal safety.

Please save this manual to make it accessible when required and always forward it to the end user.

[DESIGN PRECAUTIONS]

DANGER

z When using the notification function, the pager receiver may not be

contacted due to the frequency transmission status from the system setup environment and error on the receiver side.

To ensure the safety of the PLC system, install a call circuit with a lamp display or buzzer sound.

z When performing the control of the PLC in operation (especially changing data, program, and operation status (remote run/stop)) by connecting a personal computer, etc. to the special function module, configure an

interlock circuit in a sequence program so the safety of the overall system is always maintained.

Especially, when this control is performed to a remote PLC from an external device, troubles that have occurred on the PLC side may not be able to immediately be handled if there is a data communication error.

Define a troubleshooting agreement between external devices and the PLC CPU for data communication error occurrences, as well as construct an interlock circuit in the sequence program.

DANGER

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A-2

[DESIGN PRECAUTIONS]

CAUTION

z Do not bunch the control wires or communication cables with the main circuit or power wires, or install them close to each other.

They should be installed 100mm (3.9 inch) or more from each other.

Not doing so could result in noise that would cause malfunction.

[INSTALLATION PRECAUTIONS]

CAUTION

z Use the PLC in an environment that meets the general specifications contained in the user's manual of the CPU module.

Using this PLC in an environment outside the range of the general

specifications could result in electric shock, fire, malfunction, and damage to or deterioration of the product.

z Be sure to shut off all phases of the external power supply used in the system before installation or cleaning.

Failure to do so may cause an electric shock or damage to the product.

z Insert the fixing projection on the module bottom into the fixing hole in the base unit and mount the module using the hole as a supporting point. (For the Q2AS series module, be sure to screw it to the base unit with the specified torque.)

Incorrect module mounting may cause a malfunction, failure or drop of the module.

z Tighten the screws within the range of specified torque.

If the screws are loose, it may result in fallout, short circuits, or malfunction.

Tightening the screw too far may cause damage to the screw and/or the module, resulting in fallout, short circuits, or malfunction.

z Do not directly touch the module’s conductive parts or electronic components.

Doing so could cause malfunction or failure in the module.

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[WIRING PRECAUTIONS]

CAUTION

z Be sure to fix communication cables leading from the module by placing them in the duct or clamping them.

Cables not placed in the duct or without clamping may hang or shift, allowing them to be accidentally pulled, which may result a module malfunction and cable damage.

z Perform correct pressure-displacement, crimp-contact or soldering for wire connections using the tools specified by the manufactures.

Attach connectors to the module securely.

z Before connecting the cables, check the type of interface to be connected.

Connection, or erroneous wiring, to the wrong interface may failure the module and external devices.

z Tighten the terminal screws within the range of specified torque.

If the terminal screws are loose, it may result in short circuits or malfunction.

Tightening the screw too far may cause damage to the screw and/or the module, resulting in fallout, short circuits, or malfunction.

z When detecting the communication cable from the module, do not pull the cable portion.

For cables with connectors, hold the connector at the junction to the module, then detach it.

For cables without connectors, first loosen the screw at the junction, then detach the cable.

Pulling the cable portion while it is connected to the module may cause malfunction or damage to the module and cable.

z Be sure there are no foreign substances such as sawdust or wiring debris inside the module.

Such debris could cause fires, failure, or malfunction.

[STARTING AND MAINTENANCE PRECAUTIONS]

DANGER

z Do not touch the connector while the power is on.

Doing so could cause malfunction.

z Be sure to shut off all phases of the external power supply used in the system before cleaning or screw retightening.

Failure to do so may result in failure or malfunction of the module.

If the screw is too loose, it may cause an accidental drop of the module, short circuit or malfunction.

Excessive screw tightening may cause damage to the screw and/or module, resulting in a drop of the module, short circuit or malfunction.

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[STARTING AND MAINTENANCE PRECAUTIONS]

CAUTION z Do not disassemble or modify the modules.

Doing so could cause failure, malfunction, injury, or fire.

z Be sure to shut off all phases of the external power supply used in the system before installing or removing the module.

Failure to do so may cause failure or malfunction of the module.

z Always make sure to touch the grounded metal to discharge the electricity charged in the body, etc., before touching the module.

Failure to do so may cause a failure or malfunctions of the module.

[OPERATING PRECAUTIONS]

DANGER

z Do not write data into the "system area" of the buffer memory of special function modules.

Also, do not output the "prohibited to use" signal as the output signal to a special function module from the PLC CPU.

Writing data into the "system area" or outputting a signal for "prohibited to use" may cause system malfunction in the PLC.

CAUTION

z Before performing the control of the PLC in operation (especially changing data, program, and operation status (remote run/stop)) by connecting a personal computer, etc. to the special function module, read this manual carefully and confirm if the overall safety is maintained.

Failure to perform correct operations to change data, program, or the status may result in system malfunction, machine damage, or an accident.

z When using the module while values, such as buffer memory set values, are registered in the EEPROM, do not turn off the power supply for the module loading station not reset the PLC CPU.

If the power supply for the module loading station is turned off or the PLC CPU is reset while any values are registered, the data contents in the

EEPROM become inconsistent and as a result the values must be set again in the buffer memory, etc. and reregistered to the EEPROM.

Also, this may cause failure and malfunction of the module.

[DISPOSAL PRECAUTIONS]

CAUTION

z When disposing of this product, treat it as industrial waste.

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Revisions

The manual number is noted at the lower right of the top cover.

Print Date *Manual Number Revision Dec., 2005 IB(NA)-0800330-A First printing

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.

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1. Overview

This manual describes how to install the following serial communications

modules (hereinafter referred to as QC24N) and how to wire them with external devices.

When unpacking the module, check that the products listed in the table below are present.

Model Product name Quantity

A1SJ71QC24N1 serial communication

module 1

RS-422 communication terminal resistor

330Ω, 1/4W (orange/orange/brown/ )*¹ 2 A1SJ71QC24N1

RS-485 communication terminal resistor

110Ω, 1/2W (brown/brown/brown/ )*¹ 2 A1SJ71QC24N1-R2 A1SJ71QC24N1-R2 serial communication

module 1

*1 How to discriminate between the terminating resistors 330

Orange Brown

Orange 110

Brown Brown

Brown

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2. Transmission Specifications

The transmission specifications of the QC24N is shown below.

Refer to CPU module User's Manual for QC24N general specification.

2.1 When the Modem Function is not Used

The table below lists the transmission specification when the QC24N modem function is not used.

Specifications Item

A1SJ71QC24N1 A1SJ71QC24N1-R2

CH1 RS-232C RS-232C

Interface

CH2 RS-422/485 RS-232C

Communications system Full-duplex/Half-duplex

(Only RS-232C interface is selectable.)

Synchronous system Asynchronous system

Transmission speed (Unit : bps)

300, 600, 1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400, 57600, 115200

(The total of CH1 and CH2 must be within 230400 bps.)

Start bit 1

Data bit 7 / 8

Parity bit 1 (yes) / 0 (no)

Data format

Stop bit 1 / 2

Parity check Yes (odd/even) / No

Error detection

Sum check code Yes / No

DTR/DSR Yes (Only RS-232C interface is selectable.) / No Transmission

control DC code Yes (DC1/DC3, DC2/DC4) / No

Writing to EEPROM 100,000 times for the same area (Max.) Dedicated protocol

Non procedure protocol

Indepen -dent

mode Bidirectional protocol

RS-232C ...1: 1

RS-422/485...1: 1, 1: n, m: n

* Only 1: 1 can be used for the bidirectional protocol.

m: n can only be used for a dedicated protocol.

Dedicated protocol 1: n, m: n Non procedure

protocol 1: n

Line connec -tion

Linked mode

Bidirectional

protocol (Data communications not available)

(Link operation not available)

Transmission distance (Overall distance)

RS-232C··· 15m (49.2ft.) or less RS-422/485 ··· 1200m (3937.0ft.) or less

5V DC Internal current consumption 0.38A 0.30A

Number of occupied I/O points 32 points (*1)

Weight 0.30kg (0.66lb) 0.26kg (0.57lb)

*1 Set special 32 points when allocating I/O by GPP function. Set "AJ71QC24"

as a model name registration when using dedicated command.

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2.2 When the Modem Function is Used

The table below lists the transmission specification between QC24N and modem/terminal adapter of local station QC24N end (abbreviated as TA from here on) when the QC24N modem function is used.

The transmission specification items not shown in the table shall be the same as those listed in Section 2.1.

Specifications Item

A1SJ71QC24N1 A1SJ71QC24N1-R2 Applicability of modem function Usable

Interface that can be used modem

function RS-232C RS-232C (*1)

Linked mode between CH1 and CH2

for QC24N Unusable

Communications system Full-duplex

Synchronous system Asynchronous system

Transmission speed (unit: bps)

1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400, 57600, 115200 (The total of CH1 and CH2 must be

within 230400 bps.)

Transmission control RS·CS control yes / no (Selection) Dedicated protocol Communication enabled Non procedure

protocol Communication enabled

Bidirectional

protocol Communication enabled

Applicability of data

communication

Communication with link dedicated

instruction

Communication disabled

Line connection (QC24N: Modem) 1: 1

*1 Communication by the modem function is possible using either of the two RS-232C interfaces.

However, it is possible to communicate with only CH1 side when communicating with the peripheral device for GPPQ.

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3. Part Names And Setting

• A1SJ71QC24N1 • A1SJ71QC24N1-R2

LED Indication

ERR.

34 5 2

67 8 9 1110 ON 12 SW

1

(FG) SDA

SDB

SG

RDA (FG)

RDB MODE STATION NO.

DISPLAY

CH2 CH1

CH2 RS-422/485

STS ERR.

CH1 RS-232-C A1SJ71QC24N1

A1SJ71QC24N1

STATION NO.

ERR.

STS DISPLAY

3 4 5 2

6 7 8

11 109 ON 12 SW

1 MODE

CH2 CH1

CH1RS-232-C

CH2RS-232-C A1SJ71QC24N1-R2

A1SJ71QC24N1-R2

AB AB

Module version sticker (*1) LED indication switch

Station No.

setting switch Mode setting switch

Transmission setting switch

RS-422/485 interface

RS-232C interface

LED Indication Module version sticker (*1) LED indication switch

Station No.

setting switch Mode setting switch

Transmission setting switch

RS-232C interface

*1 Sticker showing the module hardware version and software version.

(Example)

A B

Shows that the software version is "B".

Shows that the hardware version is "A".

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(1) LED Indication

The LEDs indicate the data communication status, operating status, error status of the QC24N.

SIO PRO.

P/S C/N ERR.

RUN C R/W NEU.

ACK.

NAK SD RD SD W

CH1

ERROR SW.E NEU.

ACK.

NAK SD W SD RD

CH2 ERR.

C/N P/S PRO.

SIO

Related Protocol LED Name Meaning of

LED Indication

LED ON (ON/BLINK)

LED OFF (OFF)

Initial Status

of LED ^Dedi-_cated Non proce-

dure

Bidirec- tional

RUN Normal

Operation Normal Abnormal ON

ERROR Error batch

Any of ERR.

error, C/N error, P/S error, PRO.

error, SIO error occur

Normal OFF

SD CH send

status

Blinks during data

transmission

Not sent OFF

RD CH receive

status

Blinks during

data reception Not received OFF C R/W Communicating

with PC

Blinks during PC communications

(when not communicating is OFF) OFF SW. E Switch setting

error Switch setting

error Normal OFF

NEU. CH neutral status

Transmission sequence initial status (Waiting to receive command messages)

Command message receive completed

*1

ACK.

CH [Normal End]

transmission

After [Normal End] transmitted

After [Abnormal

End] transmitted OFF

NAK

CH [Abnormal End]

transmission

After [Abnormal End] transmitted

After [Normal

end] transmitted OFF

---- Display

select switch STS side

SD W Send wait status

When data send wait state generated

After start of

transmission OFF

(Continued to next page)

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(From previous page)

Related Protocol LED Name Meaning of

LED Indication

LED ON (ON/BLINK)

LED OFF (OFF)

Initial Status

of LED ^Dedi-_cated Non proce-

dure

Bidirec- tional

ERR. CH error occurrence

Switch setting error, mode switching error, send error, receive error, on-demand error

Normal OFF

C/N

CH and PC CPU communications result

*2 Normal OFF ----

P/S CH parity/sum check error

Parity/sum check

error Normal OFF

PRO. CH protocol error

Communications

protocol error Normal OFF ---- Overrun, framing

error Normal OFF

Display select switch ERR.

side.

SIO CH SIO error When receive data purged because OS area is full.

Normal OFF ----

*1 The indication is valid when the dedicated protocol is set as the target interface.

The LED is off when other than the dedicated protocol is set as the target interface.

*2 The LED is turned on when an illegal communication request is received from an external device, or an error occurs while accessing the PLC CPU.

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(2) Station number switch setting

Set the station number so that external devices can specify the PC as the target of access during data communication via the dedicated protocol.

Station Switch Details Description

5 0 4

3 9 8

2 7 1

6 5

0 4

3 9 8

2 7 1

6

X10 X1

STATION NO.

(1) Station number of the local QC24N is set from 0 to 31. (Do not set a station number over 32.)

(2) X10 sets the station number 10 digit.

(3) X1 sets the station number 1 digit.

(4) Make sure that the station number setting does not overlap with another QC24N, etc., on the same network.

(5) Not necessary to set the station numbers in connect order. Station numbers can also be skipped.

(The factory setting is [00].) (3) Mode switch setting

Set data communication functions for each interface.

Mode Switch

Details Mode

Switch No. Setting Contents

0

When CH1 and CH2 operation is linked:

Set CH1 to 0 Set CH2 to 1 to 6 When CH1 and CH2 operate independently:

Setting impossible.

1 Format 1

2 Format 2

3 Format 3

4

ASCII mode

Format 4 5

Dedicated protocol

Binary mode Format 5 6 Non procedure protocol

7 Bidirectional protocol 8 to D Setting impossible

E ROM/RAM/switch test

8 0 7 F 6

E

5 D

4 C

3 B 2

A 1

9

MODE CH

F Self loopback test

(The factory setting is "1") Point Always set "1" to "7" for the mode setting switch on the interface side that is not connected to the external device.

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(4) Transmission specifications switch setting

Set specifications for the communication with the data communication destination device, as well as other items.

Switch Switch State

Switch Details

CH1 CH2 Setting Item

OFF ON Notes

SW1 Operation setting Independent operation

Linked operation

Be sure to set the CH1 to OFF.

CH2 can be set to ON/OFF.

SW2 Data bits setting 7 bits 8 bits Parity bit not included.

SW3

Parity bit enable/disable

setting

Disable Enable

When set to Enable, the setting of SW4 is

effective.

SW4 Even parity/odd

parity setting Odd Even

Effective only when Parity Bit Enable is selected.

SW5 Stop bit setting 1 bit 2 bits ---- SW6 Sum check enable

/disable setting Disable Enable Dedicated protocol, bidirectional protocol SW7

Write during RUN enable/disable

setting Disable Enable Dedicated protocol SW8 Setting change

enable/disable

Disable (prohibit)

Enable (allow)

Sets mode switching and EEPROM write

allow/prohibit.

SW9 to SW12

Transmission

speed setting (*1)

Can be set as long as the total of CH1 and CH2 is within 230400 bps.

(The factory settings are all OFF.)

*1 The data transmission speeds allowed to set are as follows:

Transmission speed (unit: bps)

300 600 1200 2400 4800 9600 14400 19200 28800 38400 57600 115200 SW09 OFF ON OFF ON OFF ON OFF OFF ON ON OFF ON SW10 OFF OFF ON ON OFF OFF OFF ON OFF ON ON ON SW11 OFF OFF OFF OFF ON ON OFF ON OFF ON OFF OFF Switch

SW12 OFF OFF OFF OFF OFF OFF ON OFF ON OFF ON ON

Settings other than above are not accepted.

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4. Mounting and Installation

This section describes the handling precautions and installation environment common to all the modules when handling the QC24N from unpacking to installation.

Refer to the User's Manual of the PC CPU module used for a detailed description of mounting and installation of the module.

4.1 Handling Precautions

This section describes the module handling precautions.

(1) The module case is made of plastic. Be sure not to drop it or subject it to strong vibration.

(2) Tighten the module installation screws within the following tightening torque range.

Screw Tightening Torque Range

RS-422/485 terminal block terminal screws

(M3.5 screws) 59 to 88N ^•cm

Module installation screws

(M4 screws) 78 to 118N ^•cm

RS-422/485 terminal block installation screws

(M3 screws) 39 to 59N ^•cm

RS-232C connector installation screw

(M2.6 screws) 19 to 24N ^•cm

4.2 Installation Environment

Do not install the Q2AS series PC in the following environments.

(1) Where the ambient temperature exceeds the 0 to 55^°C range.

(2) Where the ambient humidity exceeds the 10 to 90% RH range.

(3) Where condensation is produced by sudden temperature changes.

(4) Where corrosive or combustible gas is present.

(5) Where dust, iron powder and other conductive powder, oil mist, salt, or organic solvents are prevalent.

(6) In direct sunlight.

(7) Where a strong electric or magnetic field is generated.

(8) Where vibration and shock may be transmitted directly to the module.

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5. External Wiring

5.1 Connecting RS-232C Line

The standard connection procedure for RS-232C line is explained below.

No. Signal

Code Signal Name Signal Direction (QC24N (*1) External Device) 1 CD Receive carrier detection

2 RD (RXD) Received data 3 SD (TXD) Send data

4 DTR (ER) Data terminal ready 5 SG Signal ground

6 DSR (DR) Data set ready 7 RS (RTS) Send request 9

1 2 3 4 5

6 7 8

8 CS (CTS) Send enabled

*1 A1SJ71QC24N1 : CH1 side

A1SJ71QC24N1-R2 : CH1 side/CH2 side

The following type of the RS-232C connector is used. The counter connector must match this connector.

9-pin D-sub (female) screw type

17L-10090-27-D9AC (DDK ELECTRONICS LTD)

(1) An example of connecting to an external device which is capable of turning ON/OFF the CD signal (pin 1)

(Full-duplex/Half-duplex communications)

QC24N Side External Device

Signal Name Pin No.

Connection and Signal

Direction (Example) Signal Name

CD 1 CD

RD (RXD) 2 RD (RXD)

SD (TXD) 3 SD (TXD)

DTR (ER) 4 DTR (ER)

SG 5 SG

DSR (DR) 6 DSR (DR)

RS (RTS) 7 RS (RTS)

CS (CTS) 8 CS (CTS)

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11

(2) An example of connecting to an external device which is not capable of turning ON/OFF the CD signal (pin 1)

(a) An example for DC code control or DTR/DSR control

(Full-duplex communications)

QC24N side External Device

Signal Name Pin No.

CD 1 CD

RD (RXD) 2 RD (RXD)

SD (TXD) 3 SD (TXD)

DTR (ER) 4 DTR (ER)

SG 5 SG

DSR (DR) 6 DSR (DR)

RS (RTS) 7 RS (RTS)

CS (CTS) 8 CS (CTS)

(b) An example for DC code control (Full-duplex communications)

QC24N Side External Device

Signal Name Pin No.

CD 1 CD

RD (RXD) 2 RD (RXD)

SD (TXD) 3 SD (TXD)

DTR (ER) 4 DTR (ER)

SG 5 SG

DSR (DR) 6 DSR (DR)

RS (RTS) 7 RS (RTS)

CS (CTS) 8 CS (CTS)

(3) Precaution when performing connections

1) Handle the FG signal and the shield of the connection cable in the following manner.

Connection Method Remark

FG signal Connect to the

connector cabinet area on the QC24N side.

Shield Connect to the FG terminal on the

external device side or connector cabinet area on the QC24N side.

• Do not short circuit the FG signal and the SG signal of the connection cable.

• When the FG signal and the SG signal are internally connected on the external device side, do not connect the FG signal to the QC24N.

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2) When a normal data communication cannot be performed because of external noise even though the wiring has been made as 1), perform the wiring as follows:

• Connect between the FG terminal of the external device side and connector cabinet area of the QC24N side with the shield of the connection cable.

On the external device side, however, follow the instruction manual of the external device.

• Connect each signal other than SG of the connection cable by paring up with SG.

FG

SD

RD

SD

DSR DTR

DTR DSR

SG SG

(QC24N Side) (Partner device side)

Connector cabinet side

Shield

3) Do not connect a RS-422 device to the RS-232C interface.

If a RS-422 device is connected, the RS-422 interface hardware on the connected device will be damaged, and communication will be disabled.

Point When using QC24N's modem functions, use the RS-232C cable supplied with the modem/TA or a cable specified by the modem/TA for connection between the QC24N and the modem/TA.

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13

5.2 Connecting RS-422/485 Line

The standard connection procedure for RS-422/485 line is explained below.

Signal Code Signal Name Signal Direction (QC24N (*1) External Device) SDA Send data (+)

SDB Send data (-) RDA Received data (+) RDB Received data (-)

SG Signal ground

(FG) Frame ground

SG

RDB RDA SDB SDA

(FG) (FG)

(FG) Frame ground

*1 A1SJ71QC24N1 : CH2 side A1SJ71QC24N1-R2 : (None)

Point If the QC24N is the first or last station on the RS-422/485 line, connect a

terminal resistor of the following specifications to the RS-422/485 interface.

Data communication will be disturbed if a terminal resistor is not used.

• For RS-422 communication ... 330 Ω, 1/4 W

• For RS-485 communication ... 110 Ω, 1/2 W

(1) When a QC24N is connected to each external device, connect a terminal resistor between RDA and RDB.

(2) When the relationship between the numbers of connected external devices and QC24Ns is 1:n, connect terminal resisters between SDA and SDB and between RDA and RDB.

(3) When the relationship between the numbers of connected external devices and QC24Ns is m: n, connect a terminal resister between RDA and RDB.

The R in the wiring diagram below indicates the connection of a terminal resistor.

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(1) Example of connecting external devices and QC24N by 1:1 External

Device QC24N Side

Signal Name

Connection and Signal Direction (Example)

Signal Name

RDA SDA

R RDB SDB

SDA RDA

SDB RDB ^R

RSA

RSB

CSA

CSB

SG SG

FG (FG)

(FG) (2) Example of connecting external devices and QC24N by 1:n

1) Connecting external devices and QC24N using RS-232C

R R R

R

SDA SDB RDA RDB SG FG SD

RD SD

RD

Station 0

QC24N RS-485 RS-485

RS-232C

(CH2) (CH1)

External device

SDA SDB RDA RDB SG FG SDA

SDB RDA RDB SG FG

Station 1

QC24N Station n

QC24N

2) Connecting external devices and QC24N using RS-422

R R R

R

SDA SDB RDA RDB SG FG

RS-485 RS-485

RS-422

(CH2) (CH1)

R

Station 0 AJ71QC24N-R4 External

device Station 1

QC24N Station n

QC24N

SDA SDB RDA RDB

SDA SDB RDA RDB SG FG SDA

SDB RDA RDB

SDA SDB RDA RDB SG FG

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15

3) Connecting external devices and QC24N using RS-485

R R

R R SDA SDB RDA RDB SG FG SDA

SDB RDA RDB SG FG SDA

SDB RDA RDB SG FG (CH2)

RS-485 RS-485 RS-485

External

device Station n

QC24N Station 1

QC24N Station 0

QC24N SDA

SDB RDA RDB SG FG

(3) Example of connecting external devices and QC24N by m: n

* Connecting external devices and QC24N using RS-485

SDA SDB RDA RDB

SG FG

SDA SDB RDA RDB

SG FG

SDA SDB RDA RDB

SG FG

SDA SDB RDA RDB

SG FG SDA

SDB RDA RDB

SG FG Station 0

QC24N External

device

Station 1

QC24N Station n

QC24N External

device

Point In case of connecting external devices and QC24N by m: n, refer to Section 5.1 for an example of connecting external devices and QC24N using RS-232C.

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(4) Countermeasure for data receive errors at the external device with RS-422 and RS-422/485 connections

During the data communication with external devices via QC24N

RS-422/485 interface, if the external device receives an error data, install pull-up and pull-down resistors to the external device side (about 4.7kΩ, 1/4 W as a reference of resistor value).

Installation of pull-up and pull-down resistors will prevent a data receive error.

RDA RDB

+ - 4.7k 1/4W

Terminal resistor Received data

4.7k 1/4W

External device

Point When there is a pull-up or pull-down resistor at the external device, erroneous data is not received.

REMARK

The following describes the case when a pull-up or pull-down resistor is not installed to the external device.

1) When no station is sending, the send line becomes high impedance and noise, etc. may cause the send line to change and the external device to receive erroneous data.

In this case, there is probably a parity error or framing error.

Therefore, skip the erroneous data.

2) Since the first data during data reception is fixed in the following cases, also skip the receive data until the head data is received.

• When using a dedicated protocol for data communication, the user selects the first data according to the mode and format used.

• When performing data communication using user frames with Non procedure protocol, the user selects the first data according to the user frames registered in the QC24N.

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17

(5) Connection precautions

1) When connecting the QC24N SG and FG signals to the external device, connect them according to the specifications of the external device.

2) Connect the shield of the connection cable to either of the FG signals of the connected device.

3) When a normal data communication cannot be performed because of external noise even though the wiring has been made as above, perform the wiring as follows:

• Connect between the FG of both stations with the shield of the connection cable.

On the external device side, however, follow the instruction manual of the external device.

• Connect the (FG) of the QC24N side to the FG terminal at the power supply module of the station which has a QC24N installed, or to the FG terminal of the control panel on which the QC24N PC is installed.

• Connect nnA and nnB of each signal in the connection cable as a pair.

SDA SDB RDA RDB SG (FG) (FG)

RDA RDB SDA SDB SG FG

(QC24N Side) (Partner device side)

Shield

To the FG terminal of the power module of the QC24N loading station,or to the FG terminal of the control panel

Point (1) In the description of the setting and connection of the terminal resistor in

this section, if the RS-232C -- RS-422 converters, etc. are used on the stations on both ends of the network, the setting and connection of the terminal resistor is necessary on the converter side.

(2) The devices connected to the QC24N RS-422/485 interface must be unified with either RS-422 or RS-485 for 1:n and m: n connections.

(26)

6. External Dimensions

(1) A1SJ71QC24N1

130 (5.12)4

6.5 93.6 26.2

r1

34.5

3 4 5 2

6 7 8 9 11 10 ON 12 SW

1

(FG) SG

RDA (FG)

RDB MODE STATION NO.

DISPLAY

CH2 CH1

CH2 RS-422/485

STS ERR.

CH1 RS-232-C A1SJ71QC24N1 SDA

SDB

R1

AB

A1SJ71QC24N1

(0.16)

(0.26) (3.69) (1.03) (1.36)

R2

(Unit: mm (inch))

R1 (bend radius near terminal board) : Outside cable diameter 4 R2 (bend radius near connector) : Outside cable diameter 4

r1 (bend radius near crimp terminal) : Can be connected within the range over which bending is not excessive

(27)

19

(2) A1SJ71QC24N1-R2

130 (5.12)4

6.5 93.6 3.5 34.5

STATION NO.

ERR.

STS DISPLAY

3 4 5 2

6 7 8 11 109

ON 12 SW

1 MODE

CH2 CH1

CH1RS-232-C

CH2RS-232-C A1SJ71QC24N1-R2

A1SJ71QC24N1-R2

AB

(0.16)

(0.26) (3.69) (0.14) (1.36)

R2

(Unit: mm (inch))

R2 (bend radius near connector): Outside cable diameter 4

(28)

Warranty

Mitsubishi will not be held liable for damage caused by factors found not to be the cause of Mitsubishi; machine damage 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

y 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.

y Before using the product for special purposes such as nuclear power, electric power, aerospace, medicine or passenger movement vehicles, consult with Mitsubishi.

y 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.

U.S.A Mitsubishi Electric Automation Inc.

500 Corporate Woods Parkway Vernon Hills, IL 60061

Tel : +1-847-478-2100

Brazil MELCO-TEC Rep. Com.e Assessoria Tecnica Ltda.

Rua Correia Dias, 184,

Edificio Paraiso Trade Center-8 andar Paraiso, Sao Paulo, SP Brazil

Tel : +55-11-5908-8331

Germany Mitsubishi Electric Europe B.V. German

Branch

Gothaer Strasse 8 D-40880 Ratingen,

GERMANY

Tel : +49-2102-486-0

U.K Mitsubishi Electric Europe B.V. UK

Branch

Travellers Lane, Hatfield, Herts., AL10

8XB,UK

Tel : +44-1707-276100

Italy Mitsubishi Electric Europe B.V. Italian

Branch

Centro Dir. Colleoni, Pal. Perseo-Ingr.2 Via Paracelso 12, 20041 Agrate B., Milano, Italy

Tel : +39-039-6053344

Spain Mitsubishi Electric Europe B.V. Spanish

Branch

Carretera de Rubi 76-80 08190 Sant Cugat del Valles, Barcelona, Spain

Tel : +34-93-565-3131

France Mitsubishi Electric Europe B.V. French

Branch

25 Boulevard des Bouvets, F-92741 Nanterre Cedex, France

TEL: +33-1-5568-5568 South Africa Circuit Breaker Industries LTD.

Tripswitch Drive, Elandsfontein Gauteng, South Africa

Tel : +27-11-928-2000

Hong Kong Ryoden Automation Ltd.

10th Floor, Manulife Tower, 169 Electric Road, North Point, HongKong

Tel : +852-2887-8870

China Ryoden Automation Shanghai Ltd.

3F Block5 Building Automation

Instrumentation Plaza 103 Cao Bao Rd.

Shanghai 200233 China Tel : +86-21-6120-0808 Taiwan Setsuyo Enterprise Co., Ltd.

6F., No.105 Wu-Kung 3rd.RD, Wu-Ku Hsiang, Taipei Hsine, Taiwan

Tel : +886-2-2299-2499

Korea HAN NEUNG TECHNO CO.,LTD.

1F Dong Seo Game Channel Bldg., 660-11, Deungchon-dong Kangsec-ku, Seoul, Korea

Tel : +82-2-3660-9552

Singapore Mitsubishi Electric Asia Pte, Ltd.

307 Alexandra Road #05-01/02, Mitsubishi Electric Building Singapore 159943

Tel : +65-6473-2308 Thailand F. A. Tech Co.,Ltd.

898/28,29,30 S.V.City Building,Office Tower 2,Floor 17-18 Rama 3 Road,

Bangkpongpang, Yannawa, Bangkok 10120

Tel : +66-2-682-6522

Indonesia P.T. Autoteknindo SUMBER MAKMUR Jl. Muara Karang Selatan Block a Utara No.1 Kav. No.11 Kawasan Industri/

Pergudangan Jakarta - Utara 14440 Tel : +62-21-663-0833

India Messung Systems Put,Ltd.

Electronic Sadan NO:111 Unit No15, M.I.D.C BHOSARI,PUNE-411026, India Tel : +91-20-712-2807

Australia Mitsubishi Electric Australia Pty. Ltd.

348 Victoria Road, PostalBag, No 2, Rydalmere, N.S.W 2116, Australia Tel : +61-2-9684-7777

Country/Region Sales office/Tel

When exported from Japan, this manual does not require application to the Ministry of Economy, Trade and Industry for service transaction permission.

HEAD OFFICE : TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN NAGOYA WORKS : 1-14, YADA-MINAMI 5-CHOME, HIGASHI-KU, NAGOYA, JAPAN

Country/Region Sales office/Tel

A1SJ71QC24N1-R2用户手册三菱A1SJ71QC24N1-R2手册_广州菱控

Serial Communication Module

User’s Manual

(Hardware)

A1SJ71QC24N1 A1SJ71QC24N1-R2

MODEL A1SJ71QC24N1-U-HW MODEL

CODE 13JP85

IB(NA)-0800330-A(0512)MEE

z SAFETY PRECAUTIONS z

CONTENTS

1. Overview

2. Transmission Specifications

3. Part Names And Setting

4. Mounting and Installation

5. External Wiring

6. External Dimensions