STE 80722
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2.2 Communication Specifications
2.2.1 COM1 Port
Table 2.1 COM1 port communication specifications
Item Specifications
Interface RS-232C
Synchronous system Start-stop synchronization system
Communication system Full duplex system
Communication rate 300, 600, 1200, 2400, 4800, 9600, 19200, 38400 bps
Data format ASCII code
No. of transfer bytes Max. 256 bytes
Transfer data structure Data length: 7 or 8 bits
Parity: None, odd, even
Stop bit: 1 or 2 bits
Protocol Non-protocol communication
Timeout No timeout
Fault recovery No special protocols are used.
Note: The communication rate and transfer data structure are specified in the user
parameter file. (For details, see Para. 2.3.)
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