The power rail booster supports connection of a PROFIBUS DP through a contact wire, such as can be implemented on monorail conveyors or high-bay storage and retrieval systems, thus ensuring continued use of the wide range of PROFIBUS DP system services, such as diagnostics and PROFIsafe safety engineering through a bus.
Area of application
By transferring the PROFIBUS DP signal via collector wires using signal boosting, new, low-cost concepts based on standard components can be implemented for electric monorail systems or stacker crane systems.
The device for low-cost PROFIBUS DP transfer over contact conductors and slip rings to degree of protection IP20
Transparent for data communication:The power rail booster does not reserve DP addresses
Easy to install due to connection without terminating resistor and filter element
For safe data transmission of the PROFIBUS DP signals via the contact conductors, the signal levels are raised to an interference-immune level and injected into the contact conductors. With permissible and self-optimizing baud rates from 9600 bit/s to 500 kbit/s, a maximum busbar length from 25 m at 500 kbit/s to 1200 m at 9600 bit/s can be realized. Up to 125 nodes per segment are possible, uninterruptible communication beyond segment limits is achieved by using the "PRB segment controller". The Power Rail Booster is configured with PRB Checker software. It features diagnostics LED for power supply, bus activity and group errors.
SIMATIC Power Rail Booster
24 V DC
max. 20 W
Data transmission rate, max.
500 kbit/s, self-adjusting
Cable length (depends on baud rate), max.
Shock-hazard protected voltage
Yes, to EN 61131-2
Stations per PRB segment, max.
Operation without terminating resistance
Operation without filter
Wiring options: Line / star
Yes / Yes
Dimensions (W x H x D, with connector) in mm
90 x 132 x 75