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
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
DIN - 8pin (T1 programmer port connector)
Removable terminal block 6pin
Connection
RS232C
RS485
Length of T1 connection cable 30cm
Status LEDs
Isolation
Power Supply
Current consumption
Size
3 (Refer to the following table)
Non isolation between RS232C and RS485
5Vdc from T1 main unit
75mA
30mm(W) ´ 90mm(H) ´ 75mm(D) (except cable)
(2)Transmission specification
Item
Specification
Conforms to RS232C (T1 side)
Conforms to RS485 (Host side)
30cm (between T1 and adapter)
Max. 1km (RS485 )
Interface
Transmission distance
Transmission speed
Framing
9600 bps
Start bit
Dta bit
Parity
Stop bit
Max. 32
1bit (Fixed)
8bits (Fixed)
Odd parity/ Non (automatic detection)
1bit (Fixed)
Number of stations
(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
(color)
POWER
(green)
RXD
Direction
LED Status
Lit
Not Lit
5V power is normal and
connected to T1
Data receiving
(RXD = 0)
5V power is not normal.
Data not receiving
(RXD = 1)
Host ® T1
(green)
TXD
(green)
Data transmitting
(TXD = 0)
Data not transmitting
(TXD = 1)
T1 ® Host
3
CU111 Installation
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
(Mounting on a DIN rail)
(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
Adapter
DIN rail
(35mm)
hooks the DIN rail.
DIN rail bracket
(Screw mounting)
Attach the metal fittings for screw to the DIN rail bracket and screw securely using the M3
screws.
30mm
2-M3
23mm
adapter
15mm
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
Terminal block
RS485
Programmer
port
T1
CU111
4
CU111 Configuration
4.System configuration example
[ one-to-one configuration ]
RS232C
RS485
CU111
IN
PROSEC
TOSHIBA
MDR16
T1
OUT
Operator interface unit
T1 main unit : T1-16/28/40
[ one-to-N configuration ]
RS232C
ADP-
6237B
RS485
CU111
RS232C
CU111
RS232C
IN
IN
PROSEC
PROSEC
TOSHIBA
MDR16
TOSHIBA
MDR16
T1
T1
OUT
OUT
¼¼¼¼¼¼¼¼
T1 main unit : T1-16/28/40
T1 main unit : T1-16/28/40
Other T-sereis PLC
5.Circuit configuration
Multi-drop adapter
T1
RS485
Terminal
Block
Connection
Cable
RS232C Transceiver
RS485 Transceiver
RS485
Gate
Controller
RX1
TXA
TXB
CRS1
RTS
TX1
RXA
TRM
R
RXB
SG
P5
Supervisor of
Power Suplly
GND/SG
TTermination registors : 1/2W 120W
5
CU111 connection
6.Computer Link (RS485) interface
(1)Computer Link (RS485) signal name and pin assignment
Pin No. Signal Name
Function
TXA
TXB
RXA
TRM
RXB
SG
1
2
3
4
5
6
1
2
3
4
5
6
TXA
TXB
RXA
TRM
RXB
SG
CU111®RS485 (In phase signal)
CU111®RS485 (Reverse signal)
CU111¬ RS485 (In phase signal)
Termination
CU111¬ RS485 (Reverse signal)
Signal Ground
(2)Computer Link (RS485) interface connection
Sheilded
twisted-paired cable
TXA
RXA
RXB
1
TXD
RXD
TXB
2
RXA
TXA
TXB
3
RXD
TXD
SG
4
TRM
R
5
RXB
SG
6
RS232C/RS485
Multi-drop adapter
CU111
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
(3)Computer Link signal and connect termination registors
[ one-to-one configuration ]
RS485
RS232C
CU111
RS232C
TXA
TXB
RXA
TRM
RXB
SG
TXA
TXB
RXA
TERM
RXB
SG
IN
PROSEC
TOSHIBA
MDR16
T1
OUT
HOST
T1 main unit : T1-16/28/40
Connect cables according to the above diagram.
Short between RXA and TRM(TERM) for termination at the end of both CU111 and ADP-
6237B.
[ one-to-N configuration ]
TXA
RS232C
R
TXB
RXA
TERM
R
RXB
HOST
SG
ADP-6237B
R
R
T T R T R S
X X X R X G
A B A M B
T T R T R S
X X X R X G
A B A M B
T T R T R S
X X X R X G
A B A M B
CU111
RS232C
IN
IN
IN
PROSEC
PROSEC
PROSEC
TOSHIBA
MDR16
TOSHIBA
MDR16
TOSHIBA
MDR16
T1
T1
T1
OUT
OUT
OUT
Connect cables according to the above diagram.
Connect termination registor 1/2W-220W between RXA and TXB, and between TXA and
TXB at both terminal stations.
7
TOSHIBA INTERNATIONAL (EUROPE) LTD.
1 Roundwood Avenue
Stockley Park, Uxbridge
TOSHIBA INTERNATIONAL
CORPORATION PTY. LTD.
2 Morton Street, Parramatta
N.S.W. 2150, AUSTRALIA
Middlesex, ENGLAND UB11 1AR
Tel: 0181-756-6000
Fax: 0181-848 4969
Tel: 02-9768-6600
Fax: 02-9890-7542
TOSHIBA INTERNATIONAL CORPORATION
Industrial Division
13131 West Little York Road
TOSHIBA CORPORATION
Industrial Equipment Department
1-1, Shibaura 1-chome, Minato-ku
Tokyo 105, JAPAN
Houston, TX. 77041, U.S.A.
Tel: 713-466-0277
Fax: 713-466-8773
Tel: 03-3457-4900
UG-TS01***-E011
1997-02(2)
8
|