Lust CDA3000 - Profibus-Dp

Engineering Guide CDA3000
5-13
5 Communication and user modules
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5.4 PROFIBUS-DP The PROFIBUS is a non-manufacturer-specific, standardized field bus
of which the openness is guaranteed by the international standard
EN 50170.
PROFIBUS comprises the three variants PROFIBUS-DP, PROFIBUS-
FMS and PROFIBUS-PA. The PROFIBUS-DP version is aligned to the
fast data transfer rates and short response times required in drive engi-
neering.
Bus topology
Device type Function
DP-Master class 1 Centralized control
DP-Master class 2
Programming, project planning or operator
control device
Slave Peripheral device (I/O, drive, valves)
Table 5.10 Topology of PROFIBUS-DP
PROFIBUS-DP
Topology Line
Data transfer RS 485
Bus access Master-/Slave access
Transmission speed 9.6 kBit/s to 12 MBit/s
Transmission range 1200 m to 100 m
Data security Hd 4
Number of stations max. 127 (32 per segment)
Number of data bytes 1 to 246 Bytes
Table 5.11 PROFIBUS characteristics
Slave 1
Slave 2 Slave 3
Slave 4 Slave 5 Slave 6
Master
Master
term 2