The PROFINET and PROFIBUS Power Hub is a modular, motherboard-based power supply system for four PROFIBUS PA segments. It consists of one or two motherboards and various plug-in modules for power supply to the fieldbus segment, a connection to PROFIBUS DP or PROFINET and Advanced Diagnostics for the physical layer. Motherboards provide the following selectable attributes:
- Single or redundant power supply modules per segment
- Single or redundant gateway modules
- Screw or spring terminals with retaining screws
- Optional grounding bar for easy connection of the shield
Output power per segment is up to 30 V/500 mA. Redundancy is selectable independently for the power supply and the gateway.
This segment coupler 3, characterized by the slender power supply modules, is backward compatible to all previous segment couplers 1, 2 and 3.
All Power Hubs for four segments are approved for installation in Zone 2 or Division 2 hazardous areas. A choice of power supply modules with different ratings in combination with suitable device couplers (FieldBarrier or Segment Protector) enable all common methods of ignition protection at the field device utilizing the high-power trunk concept. They are flameproof enclosure Ex d and intrinsic safety Ex ia, Ex ib or Ex ic acc. to FISCO/Entity for any hazardous location.