Specification :

Redundant Ethernet/ IP to Profibus-PA

The EN2PA-R provides a fast and integrated solution for adding Profibus-PA field devices to any Logix platform. These linking devices provide a direct link between Profibus-PA and EtherNet/ IP, with no intermediate Profibus-DP layer required.
Linking Device

Profibus PA is a convenient 2-wire instrument bus and a popular choice in process control. The network is based on the IEC 61158 specification and operates at 31.25 KBits/ s supplying power and communication on the same cable. The 1788HP-EN2PA-R device is a self contained, DIN-rail mountable device, linking an EtherNet/ IP network to a local Profibus-PA segment. The unit operates as a true PA master, and does not require any DP network, DP master, coupler device or external power conditioner. Up to 24 PA field devices can be connected to each EN2PA-R.
Redundancy ( PA)

The EN2PA-R multiple levels of device and media redundancy. Two physical Profibus-PA ports are provided, each with their own internal power conditioners and protection. Both ports form part of the same logical PA segment and can be used in various redundant topologies, including:

Split bus
Dual media ( Requires Hiprom' s PAR-JB junction box)
Ring ( Requires Hiprom' s PAR-JB junction box)

The PARJB protects the network from both short and open circuit faults, improving the overall reliability of the system.

Redundancy ( EtherNet/ IP)

By incorporating Rockwell Automation' s Embedded Ethernet Switch technology, the EN2PA-R hosts two Ethernet ports. This allows the unit to be connected in a Linear topology or in a Device Level Ring ( DLR) topology. The latter providing Ethernet media redundancy.
Redundancy ( Master Device)

The EN2PA-R can be configured to run in a multi-master configuration. Thus allows two, identically configured, EN2PA-R masters to be connected on the same Profibus-PA network. The masters effectively share the bus, with both providing power and transferring data between the PA field devices and the Logix controller.
Integration

Integration into RSLogix5000 is seamless when making use of the modules' Add-On-Profiles ( AOPs) , and the process variables of each field device appear in engineering units without any required user logic. All Profibus-PA configuration is done within the RSLogix5000 environment. Additional PV statuses and diagnostic information is also available.
FDT/ DTM Technology

FDT/ DTM technology is supported allowing direct access to the field devices diagnostics and parameters using an FDT frame such as FTAssetCentre. In addition to this, a field device DTM can be launched from within the RSLogix5000 environment using Hiprom' s FDT-ThinFrame technology. FDT-ThinFrame also allows a device DTM to be launched from within the FTViewSE HMI, allowing the operator a graphical view into the state and diagnostics of the field device.
Diagnostics

The EN2PA-R provides a number of invaluable diagnostic parameters further simplifying the commissioning of large networks. These include instrument specific diagnostics as well as network diagnostics, such as: ( All basic diagnostic information is available in the input assembly.)

Power Supply Voltage
PABus Voltage ( A & B bus)
PABus Current ( A & B bus)
Unit InternalTemperature

Commissioning is simplified by onboard advanced diagnostics, including a node specific PA bus oscilloscope trace which can be viewed within the RSLogix5000 AOP.

Specifications

Supply Voltage
Minimum 20 vdc
Maximum 32 vdc
Internal current consumption
Typical 260 mA ( at 24 Vdc - no bus current )
Maximum PA bus supply current
Typical 500 mA ( per PA port)
Maximum PA field devices
24
Temperature
0 - 60 ° C
Dimensions ( w x h x d)
80mm x 152mm x 136mm