Flintec FT-107 - RS 232 C Serial Port

FT-107 Weighing Terminal, Technical Manual, Rev. 1.0.0, August 2019 Page 15 of 46
4.4.2 RS 232C Serial Port
FT-107(S) weighing terminal has one standard RS232C and one optional RS232C port.
Usage
Interfacing with printer, PC, PLC, remote display etc.
Data formats
Continuous, Continuous 2, Printer
Baud rate
1200 / 2400 / 4800 / 9600 (Default) / 19200 / 38400 bps
Length and parity
8 bits no parity
Start / Stop bits
1 start bit and 1 stop bit
Table 4.1 - RS 232C Serial Interface Specifications
Definition
FT-107
FT-107S
Pin number
(DB9 male)
Pin number
(Terminal)
TXD
2
1
RXD
3
2
GND
5
3
Table 4.2 – Pin configuration of RS 232C terminals
2-wire connection to peripherals: RS 232C serial connection is done with two wires as indicated below in
Figure 4.5. if there is no data entry to the weighing terminal. Typical applications are printer and barcode
reader connections.
Figure 4.5 – 2 wire RS 232C connection with a printer or PC
3-wire connection to the peripherals: RS 232C serial connection is done with three wires as indicated below
in Figure 4.6 for bidirectional interfacing. Typical application is bidirectional BSI format interfacing with PC or
PLC.
Figure 4.6 – 3 wire RS 232C connection with a PC or PLC