Toshiba RS-485, RS232C User Manual

PROGRAMMABLE CONTROLLER

PROSEC T1

RS232C/RS485

MULTI-DROP ADAPTER

CU111

n

USER’S MANUAL

T1 connection cable

T1 side connector

Type identification

Status LEDs

RS485 Terminal block

1

Precaution and Checks

Thank you for purchasing a TOSHIBA product.
Please confirm the product has arrived in good condition and use it according to this guide.
This guide has been prepared for users who have general knowledge of the programmable
controllers and control systems. If any parts of this guide are not clear to you,contact
TOSHIBA agent.

CAUTION

1. Use the multi-drop adapter in the environment specified in the T1 user's
manual. Using the multi-drop adapter in the illegal environment may lead to
electric shock,fire,failure,or malfunction.

2. Neither disassemble nor modify the multi-drop adapter. Otherwise, it may get
fired,failed,or malfunctioned.

3. The multi-drop adapter CU111 is designed for the T1. Do not use it for other
purposes.

4. Turn off the power of the T1 main unit before connecting the cable.

5. Do not pull the T1 connection cable without grasping the connector. It can
cause cable disconnection.

6. Do not extend the T1 connection cable.

n Unpacking confirmation

Check the product matches the type notation on the packing case.
Also, check the followings are in the packing case.

Multi-drop adapter (CU111) 1
Metal fitting for screw 1
Terminal block (attached) 1
Guide (this document) 1

n Product identification

Product type : CU111
Part number : TCU111**S

n Handling precautions

The multi-drop adapter specification confirm to the T1 main unit.
Please read the following documents.

T1 USER’S GUIDE (UG-TS07***-E007)
T1 USER’S MANUAL - Basic Hardware and Function - (UM-TS01***-E001)
T1 USER’S MANUAL - Option Cards and I/O Modules - (UM-TS01***-E002)

T1 USER’S MANUAL - Computer Link Function - (UM-TS01***-E003)
Also, keep this guide and related manuals so that you can read them anytime while the T1
is in operation.

2

CU111 Specifications

1.Overview

Connecting the RS232C/RS485 multi-drop adapter (CU111) to the T1’s programmer port, you
can use the RS485 computer link function.
By this function, long-distance and one -to- N communications become available.

2.Specifications

(1)Function specification

Item Specification

Connection RS232C DIN - 8pin (T1 programmer port connector)

RS485 Removable terminal block 6pin
Length of T1 connection cable 30cm
Status LEDs 3 (Refer to the following table)
Isolation Non isolation between RS232C and RS485
Power Supply 5Vdc from T1 main unit
Current consumption 75mA
Size

(2)Transmission specification

Item Specification

Interface Conforms to RS232C (T1 side)

Transmission distance 30cm (between T1 and adapter)

Transmission speed 9600 bps
Framing Start bit 1bit (Fixed)

Number of stations Max. 32

30mm(W) × 90mm(H) × 75mm(D) (except cable)

Conforms to RS485 (Host side)

Max. 1km (RS485 )

Dta bit 8bits (Fixed)
Parity Odd parity/ Non (automatic detection)
Stop bit 1bit (Fixed)

(3)RS485 transmission cable

Shieled twisted cable which conforms to the RS485, should be used for communication
cable. It’s recommended that 0.9mm diameter or more, 3 pairs or more cables are used.

(4)Operation Status LEDs

Name Direction LED Status
(color) Lit Not Lit
POWER
(green)
RXD
(green)
TXD
(green)

Host → T1
T1 → Host

5V power is normal and
connected to T1
Data receiving
(RXD = 0)
Data transmitting
(TXD = 0)

3

5V power is not normal.
Data not receiving

(RXD = 1)
Data not transmitting
(TXD = 1)

CU111 Installation

30mm

23mm

15mm

3.Installation

1.Installing the adapter
Either DIN rail or screw mounting is available.
The length of the T1 connection cable is 30cm. Consider the cable length when installing
the multi-drop adapter.
Please read the installation section of the T1 user’s manual.

(Mounting on a DIN rail)

Mounting

(1)Hang the adapter on the DIN rail at first.

Next, push the adapter and hook the
DIN rail.

(2)Please check that the DIN rail bracket

hooks the DIN rail.

DIN rail

Adapter

(35mm)

DIN rail bracket

(Screw mounting)
Attach the metal fittings for screw to the DIN rail bracket and screw securely using the M3
screws.

2-M3

adapter

95mm

90mm

fitting for screw

2.Connecting the dedicated cable
Turn off the power of the T1 main unit. Connect the T1 side connector to the T1’s
programmer port and RS485 cables to the terminal block.
Do not connect or remove the cables while power to the T1 is on.

T1 dedicated cable

Programmer

T1 CU111

port

Terminal block

RS485

4

CU111 Configuration

T1

T1

T1

R

4.System configuration example

[ one-to-one configuration ]

IN

PROSEC

TOSHIBA MDR16

OUT

T1 main unit : T1-16/28/40

[ one-to-N configuration ]

RS485RS232C

CU111

Operator interface unit

CU111 CU111

RS232C

IN

PROSEC

TOSHIBA MDR16

OUT

5.Circuit configuration

T1
Connection
Cable

RS485

ADP-

RS232C

6237B

RS232C

IN

PROSEC

TOSHIBA MDR16

OUT

Multi-drop adapter

RS485

Gate

Controller

……………………

RS485 TransceiverRS232C Transceiver

Other T-sereis PLCT1 main unit : T1-16/28/40T1 main unit : T1-16/28/40

RS485
Terminal
Block

TXARX1
TXBCRS1
RXARTS

TX1

TRM

RXB
SG

P5

GND/SG

Supervisor of

Power Suplly

TTermination registors : 1/2W 120Ω

5

6.Computer Link (RS485) interface

(1)Computer Link (RS485) signal name and pin assignment

Pin No. Signal Name Function

1
2
3
4
5
6

(2)Computer Link (RS485) interface connection

TXA
TXB
RXA

TRM

RXB

SG

1 TXA
2 TXB
3 RXA
4 TRM Termination
5 RXB
6 SG Signal Ground

Sheilded
twisted-paired cable

CU111 connection

CU111→RS485 (In phase signal)
CU111→RS485 (Reverse signal)
CU111←RS485 (In phase signal)

CU111←RS485 (Reverse signal)

TXA RXA

TXB

R

RXB

RS232C/RS485

Multi-drop adapter

CU111

1

RXDTXD

2

RXB

3
4

TRM

5

6

TXARXA

TXDRXD

TXB

SGSG

Host Equipment
RS485 Interface

Short between RXA(Pin No.3) and TRM(Pin No.4) for termination of one-to-one configuration
at CU111. Refer to the next page.
Note

¬ Use the shielded twisted-paired cable for noise immunity and ground the cable shield at

one end.

- Connect SG (Signal Ground) each other.
® The adapter does not have the frame ground (FG) terminal, so please ground directly.
¯ Please make the program transmitting again.

6

CU111 Connection

T1

T1

T1

T1

TRM

RXA

TXB

TXA

TERM

RXA

TXB

TXA

RXB

RXBSGSG

R

R

(3)Computer Link signal and connect termination registors

[ one-to-one configuration ]

RS485

CU111

IN

PROSEC

TOSHIBA MDR16

OUT

RS232C

RS232C

T1 main unit : T1-16/28/40

HOST

Connect cables according to the above diagram.
Short between RXA and TRM(TERM) for termination at the end of both CU111 and ADP­6237B.

[ one-to-N configuration ]

R

TXA

RS232C

TXB
RXA

R

TERM

RXB

SG

ADP-6237B

HOST

SGR

T

R

T

CU111

T

X

R

X

X

X

B

M

A

B

A

R

T

T

X

X

X

A

B

A

SGR

T

X

R

B

M

R

T

T

X

X

X

A

B

A

SGR

T

X

R

B

M

RS232C

IN

PROSEC

TOSHIBA MDR16

OUT

IN

PROSEC

TOSHIBA MDR16

OUT

IN

PROSEC

TOSHIBA MDR16

OUT

Connect cables according to the above diagram.
Connect termination registor 1/2W-220Ω between RXA and TXB, and between TXA and
TXB at both terminal stations.

7

TOSHIBA INTERNATIONAL (EUROPE) LTD.

1 Roundwood Avenue
Stockley Park, Uxbridge
Middlesex, ENGLAND UB11 1AR
Tel: [phone] Fax: [phone]

TOSHIBA INTERNATIONAL
CORPORATION PTY. LTD.

2 Morton Street, Parramatta
N.S.W. 2150, AUSTRALIA
Tel: [phone] Fax: [phone]

TOSHIBA INTERNATIONAL CORPORATION

Industrial Division

13131 West Little York Road
Houston, TX. 77041, U.S.A.
Tel: [phone] Fax: [phone]

UG-TS01***-E011

1997-02(2)

8

TOSHIBA CORPORATION

Industrial Equipment Department

1-1, Shibaura 1-chome, Minato-ku
Tokyo 105, JAPAN
Tel: [phone]