ABB AC 800F

7 Functional Description of the Fieldbus Modules
7-19
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. 7-9 LD 800P block diagram
• DP-connector, 9-pin Sub-D, PA connection via pluggable screw terminals
• Debugging interface for connection of a serial terminal