Addressing; Network Technology - Honeywell PFA 700 Technical Information

Function

3 .5 Addressing

A maximum of 126 units (masters and slaves) can be
connected to a PROFIBUS DP system. Each station is
assigned an individual PROFIBUS address which can
be set between 0 and 126 using two code switches on
the PFA board.
PFA, BGT · Edition 03.11l

3 .6 Network technology

114 dec
0 0
All devices are connected in a bus structure (line). Up
to 32 stations (masters or slaves) can be connected in
a single segment. The beginning and end of each seg-
ment is fitted with an active bus terminator. Both bus
terminators must have a permanent power supply to
ensure error-free operation. The power supply for the
bus terminator is provided by the PFA. The bus termina-
tor can be connected in the bus connection plug.
If more than 32 stations are implemented or if there is a
need to expand the network area, repeaters (amplifiers)
must be used to link the individual bus segments.
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