Flintec FT-107 - Optional RS232 C Serial Port; Power Source Connection and Grounding

FT-107 Weighing Terminal, Technical Manual, Rev. 1.0.0, August 2019 Page 16 of 46
4.4.3 Optional RS232C Serial 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 4.3 – optional RS232 Serial Interface Specifications
FT-107
FT-107S
Definition
Pin number
(Round Male)
Pin number
(Terminal)
TXD
2
2
GND
3
3
Table 4.4 – Pin configuration of optional RS 232
4.4.4 Power Source Connection and Grounding
The weighing instruments measures very low signal levels. The quality of the power line will determine the
accuracy and the safety of your measuring system. It is very important that the instrument should not share
power lines with noise-generating parts such as heavy load switching relays, motor control equipment,
inductive loads, etc. If the condition of the power supply in the plant is poor, prepare a special power line and
grounding. Before connecting the power source check if its voltage is the same as the voltage written on the
weighing terminal.
Table 4.5 – Power supply connector
The protected ground shall be connected to the 230 VAC powered instrument against the safety and electrical
disturbances.