Toshiba AS311 Manual De Usuario

  

User’s 

Manual 

 
 

 

Item 

Channel 1 

Channel 2 

Interface 

RS-232C or RS-422 

RS-232C 

Transmission mode 

Full-duplex 

Synchronizing 

Start-stop method (asynchronous) 

Transmission speed 

300, 600, 1200, 2400, 4800, 9600, 19200 bps 

Frame format 

Start bit 
Data 
Parity 
Stop bit 

1 bit 
7 or 8 bits 
even / odd / none 
1 or 2 bits 

Transmission code 

ASCII 

Message length 

Max. 896 bytes 

Configuration 

One to one  (Note) 

Transmission distance 

Max. 15 m (RS-232C) 
Max. 1 km (RS-422) 

Max. 15 m 

Connector 

D-sub 25-pin female 

D-sub 25-pin female 

 
 

 

Note)  In case of RS-422 interface, multiple devices can be connected to one AS311 

 

 

 

if the connected RS-422 devices work as slave stations and support multi-point 

 

 

 

connection. That is, the connected RS-422 devices must have the transmission 

 

 

 

generators which support the passive state. Also, the RS-422 devices must 

 

 

 

support the message format which contains the selecting address. In this case, 

 

 

 

the number of the connected RS-422 devices is limited up to 10. 

 

 

 

On the other hand, the AS311’s transmission generator does not support the 

 

 

 

passive state. Therefore the AS311 must be the master station in the one-to-N 

  

 

configuration.