Flintec FAD-30 - Manual (Page 32)

FAD-30 Technical Manual, Rev. 1.06 December 2012 Page 32 of 48
6.2. Electrical Connections
RS-232 and RS-485 connections are shown in figure 6.2.
Figure 6.2 – FAD-30 / FAD-30MB serial interface connections
RS-232C Serial Interface
Use Interfacing with PC or PLC, setup via xFace
Data format Continuous, BSI (Default)
Baud rate 9600 bps
Length and parity 8 bit, no parity
Start / Stop bits 1 start bit and 1stop bit
RS-485 Serial Interface
Use Interfacing with PC or PLC, setup via xFace
Data format Continuous, BSI (Default for FAD-30), Modbus RTU (for FAD-30MB only, default)
Baud rate 1200 / 2400 / 4800 / 9600 (Default) / 19200 / 38400 / 57600 bps
Length and parity 8 bit, no parity
Start / Stop bits 1 start bit and 1stop bit
Warning: Connect the shield to the reference ground.
Warning: Disconnect xFace PC software for Modbus-RTU interfacing
Load Cell Connection
See chapter 4.2.2
Power Supply Connection
See chapter 4.2.1
6.3. Interfacing
FAD-30 and FAD-30MB instruments have two serial interface connectors on the front of the instrument: RS-232
and RS-485. The table below describes the data format for interfacing the peripherals and their application:
Data Format Description Application Hardware
Continuous Asynchronous continuous
output. Refer to chapter 5.8 Continuous data transfer to PC or PLC
Remote display connection
Remote Taring, Zeroing RS-232C
RS-485
BSI Demand interface on BSI
Serial Interface format.
Refer to chapter 5.9 Master – Slave data interfacing with
PLC or PC.
RS-232C
RS-485
Modbus RTU
(FAD-30MB only) Modbus RTU interfacing.
Refer to chapter 5.10 Interfacing with PLC. RS-485
Table 6.1 – Data output interfacing
Attention: Please disable the interface if not used to increase the performance of the instrument.
6.4. Setup and Calibration
FAD-30 and FAD-30MB instruments are set up and calibrated by xFace. The A/D Converter settings are very
important for a good weighing performance. Please refer to chapter 5.3.