Westermo FD-80 - Manual (Page 15)

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Technical data
Device type FD-80_P
GSD-file FD-80_P.gsd
Profibus DP
Input data Up to 8 modules, max 64 word data
Output data Up to 8 modules, max 64 word data
Ethernet
Transfer mode Slave, Point to point or Addressed mode
One Fieldbus Adapter at each side of the remote (modem) line, point to point.
Point to point mode:
One Fieldbus Adapter at each end of the Ethernet line, point to point. Continuous
modem transfer mode, where both units can initiate transfer. Continuously transfers
specified Profibus DP data from input/output buffer, via the modem interface. These
buffers are updated so the buffer at each side will be the same. However, note that
there will be a time delay which depends on transfer time.
Addressed mode:
Wait for received data with this unit’s transfer address, and then send back data frame
once.
No additional programming in the Profibus DP master (PLC) is required as the frames
between the slave adapters are automatically exchanged.
7. Functional description
7.1 Point to point FD-80 (P)
CHANNEL 4
I/O
FD-80
HUB HUB
FD-80
CHANNEL 4
I/O
Ethernet TCP/IP
Profibus DP
Profibus DP master Profibus DP master
Profibus DP