Profinet; Installing An I/O Device; Network Discovery And Device Identification - GE PACSystems RX3i Secure Deployment Manual

Chapter 3. Communication Requirements

3.3 PROFINET

This section describes the communication paths needed to support common operations on a PROFINET
network.

Installing an I/O Device

Commissioning, adding, or replacing an I/O device requires that the device be assigned a unique name to use
on the PROFINET network. Doing this requires supporting the following communication path.
Protocol
PROFINET DCP
Supporting this path will allow Proficy Machine Edition to directly discover all of the PROFINET I/O devices that
are connected to the same subnet as the computer. (Note that this protocol is not routable.) Proficy Machine
Edition implements the Client functionality directly from the computer network adapter, so I/O devices must
be local to the computer's network adapter. It can then be used to (re-)assign a unique name to the I/O device
being installed.
Note: This protocol can also be used to make other modifications to the I/O device, such as
assigning a new IP address or resetting it to factory defaults. However, those functions
are not generally required when Installing an I/O device.

Network Discovery and Device Identification

Proficy Machine Edition can also request information about the devices on a PROFINET network from a
PACSystems Controller, and then retrieve additional identification information about each device. This request
is sent to the PACSystems Controller using the Service Request protocol (described elsewhere) embedded
within the SRTP or SNP protocols. The PACSystems Controller satisfies those requests using the following
communication paths.
Protocol Local I/O Controller
DCE/RPC Client
PROFINET DCP Client
Note: No mechanism is provided through this communication path for assigning a name to a
new I/O device.
10
Proficy Machine Edition
Client
Remote I/O Controllers and I/O Devices
Server
Server
PACSystems PROFINET IO Devices Secure Deployment Guide
I/O Device
Server
GFK-2904D