12-6
12.1.3 Communication Specifications
Tool port
Item Specifications
Interface RS232C
Communication mode 1:1 communication
Transmission distance 15 m
Baud rate
(to be set by system register)
Note3)
300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps
Communication method Half-duplex communication
Synchronous method Start stop synchronous system
Transmission line Multicore shielded line
Trans-
mission
code
Computer link ASCII
General-purpose
serial communication
ASCII, Binary
Communication
format
(to be set by
system register)
Note1)
Data length 7 bits/8 bits
Parity None/Even/Odd
Stop bit 1 bit/2 bits
Start code STX/No STX
End code CR/CR+LF/None/ETX
No. of connected units
Note2)
2 units
Communication functions
Computer link (slave)
Modem initialization
General-purpose communication (only in RUN mode)
Note1) The start code and end code can be used only in the general-purpose serial communication
mode.
Note2) Unit numbers should be registered by the system register.
Note3) The baud rates of 300, 600 and 1200 bps can be specified by the SYS instruction only.
Note4) Although it has adequate tolerance to noise, it is recommendable to make the user program to
execute retransmission. (in order to improve reliability of the communication in case of
communication errors occurred by excessive noises or when a receiver equipment cannot receive
temporarily.)
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