FT-10 Fill Technical Manual, Rev. 2.21, July 2020
Page 17 of 131
4.3.3 RS 232C Connection
RS 232C port usage and specifications are shown in the table below and on Page 29.
Usage
Interfacing with PC or PLC, remote display connection, programming via
IndFace1X
Data formats
Continuous, Fast Continuous, Printer Format, BSI Protocol,
Modbus-RTU High-Low, Modbus-RTU Low-High
Baud rate
1200 / 2400 / 4800 / 9600 (Default) / 19200 / 38400 / 57600 / 115200 bps
Length and parity
8 bit no parity (Default), 7 bit odd, 7 bit even, 8 bit odd, 8 bit even
Start / Stop bits
1 start bit and 1 stop bit
Table 4.1 - RS-232C Serial Interface Specifications
RS 232C serial connection is done with three wires as indicated below in Figure 4.3.
Figure 4.3 - RS 232C serial interface connections
Warning
:
Connecting the shield to the reference ground will protect your weighing system against EMC
disturbances.
4.3.4 RS 485 and Modbus-RTU Connection
RS 485 port usage and specifications are shown in the table below and on Page 30.
Usage
Interfacing with PC or PLC, remote display, programming via IndFace1X
Data formats
Continuous, Fast Continuous, Printer Format, BSI Protocol,
Modbus-RTU High-Low, Modbus-RTU Low-High
Baud rate
1200 / 2400 / 4800 / 9600 (Default) / 19200 / 38400 / 57600 / 115200 bps
Length and parity
8 bit no parity (Default), 7 bit odd, 7 bit even, 8 bit odd, 8 bit even
Start / Stop bits
1 start bit and 1 stop bit
Table 4.2 - RS 485 Serial Interface Specifications
RS 485 serial connection is done with three wires as indicated below in Figure 4.4. Line termination resistors
(110 ohm) are needed at both ends of the RS 485 line.
Figure 4.4 - RS485 serial interface connections
Warning
:
Connect the shield to the reference ground.