123
13
Options
123
Options
Chapter
13
13-3.
RS-232C interface
RS-232C is an interface to read the indicated values and status of the F325 and to write the setting
values into the F325. This interface is convenient for processing such as controls, totals, and
records by connecting the F325 to a computer, PLC and so forth.
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Communication specifications
Specifications
Signal level:
RS-232C compliant
Transmitting distance: Approx. 15m
Transmitting method: Asynchronous, full-duplex communication
Transmitting speed:
Selectable from 1200, 2400, 4800, 9600, 19200, 38400 bps
Bit configuration:
Start bit
1bit
Length of character
Selectable from 7 or 8 bit
Stop bit
Selectable from 1 or 2 bit
Parity bit
Selectable from none, odd or even
Terminator
Selectable from CR, CR-LF
Code: ASCII
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Cables
This connection figure indicates a cable layout when a PC used is a DTE (Data Terminal
Equipment). (Example) Use a straight type cable when a connecting counterpart is a DCE (Data
Circuit-terminating Equipment) such as a modem.
Create cables after double-checking connector shapes and signal wires (pin assignment) of devices
to be used.
TXD
DTR
RXD
GND
Cross type cable
1
DTR
2
TXD
3
RXD
4
GND
1
CD
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
PC (D-Sub 9 pins)
F325
