Toshiba RS232C Manual De Usuario
3
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.
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
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
30mm(W)
×
90mm(H)
×
75mm(D) (except cable)
(2)Transmission specification
Item
Specification
Interface
Conforms to RS232C (T1 side)
Conforms to RS485 (Host side)
Conforms to RS485 (Host side)
Transmission distance
30cm (between T1 and adapter)
Max. 1km (RS485 )
Max. 1km (RS485 )
Transmission speed
9600 bps
Framing
Start bit 1bit (Fixed)
Dta bit 8bits (Fixed)
Parity Odd parity/ Non (automatic detection)
Stop bit 1bit (Fixed)
Dta bit 8bits (Fixed)
Parity Odd parity/ Non (automatic detection)
Stop bit 1bit (Fixed)
Number of stations
Max. 32
(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.
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)
(green)
5V power is normal and
connected to T1
connected to T1
5V power is not normal.
RXD
(green)
(green)
Host
→
T1
Data receiving
(RXD = 0)
(RXD = 0)
Data not receiving
(RXD = 1)
(RXD = 1)
TXD
(green)
(green)
T1
→
Host
Data transmitting
(TXD = 0)
(TXD = 0)
Data not transmitting
(TXD = 1)
(TXD = 1)