Westermo FD-40 - Manual (Page 6)

6 6630-2242
3.1 Field of application
3. Introduction
The FD-40 Fieldbus Converter integrates devices using the serial interfaces RS-232
or RS-485 into PROFIBUS DP.
The FD-40 works as a PROFIBUS DP slave and enables the utilisation of normal
PROFIBUS DP I/O data for transparent communication over a serial interface.
The FD-40 enables the integration of systems such as measuring devices, electronic
scales, operator terminals, printers, identification systems, barcode readers and other
automation devices which use a RS-232 or RS-485 interface into PROFIBUS DP
applications. While FD-40 have 15 kbyte input and output buffers, a huge amount
of data or a high data rate can be transferred over the serial interface without
disturbing the PROFIBUS DP traffic.
In data
PROFIBUS DP
In buffer
15k
Serial transfer
PROFIBUS DP
Master control
Interface
Serial transfer
control
Out data
PROFIBUS DP
Out buffer
15k
Serial Transfer
RS-232
RS-485
Power
DC
DC
PROFIBUS DP
• Receive data from bar code readers
• Interface to operator terminals
• Send data to viewing screens
• Interface to transmitters with serial interface
PROFIBUS DP
slave
PROFIBUS DP RS-232/485
PROFIBUS DP
master (PLC)
FD-40 B Text display