ABB AC 800F

4 Cabling the AC 800F
4-67
4.3.1.5 Connecting Profibus-PA nodes
The Profibus module FI 830F is designed exclusively for the connection of Profibus-
DP nodes. If you intend to integrate a Profibus-PA line - i.e. several PA nodes - into
the network, it is recommended to use a linking device LD 800P. The linking device
converts the DP bus physics to PA bus physics. LD 800P is not transparent on the
line, i.e. it is handled as a DP node and has an own DP address. The PA bus is
powered externally via a so-called power conditioner.
Various variants are planned for the Profibus linking device.
The Profibus linking device LD 800P is still under development and will be
available from mid 2002. These specifications are therefore preliminary
and are intended to be used for planning exclusively. Subject to technical
changes without notice!
Features of the Profibus linking device LD 800P
• Conversion from DP to two PA
lines
• Baud rates: DP max. 12 Mbauds,
PA 31.25 kbauds
• Redundancy operation possible,
bumpless toggle between Primary
and Secondary, alignment via
redundancy link
• Redundant power supply 24 V DC
with monitoring function and
generation of a power-fail signal
• Electrical isolation between DP
and PA and between the two PA
lines
• Supply of the bus via power
conditioner with external power
supply
• EEPROM for operating
parameters
• Status and error indicators
Fig. 4-43 Block diagram LD 800P
• DP-connector, 9-pin Sub-D, PA connection via pluggable screw terminals
• Debugging interface for connection of a serial terminal