Chapter 1
.
Introduction
1.5
PROFINET Operation Overview
An RX3i Genius Communications Gateway (GCG001) uses PROFINET communications for data
exchange with the PLC. As noted above, the data rate must be 100Mbps full-duplex or faster.
The same network may be used for basic Ethernet communications, but use of a separate
Ethernet network and RX3i Ethernet interface is recommended.
PROFINET Communications
Communications on an RX3i PROFINET network use the standard PROFINET communications
described in this section. Note, however, that the Genius Gateway GCG001 is constrained to
work only with GE PROFINET PLC products.
Application Relationships
Before a PROFINET IO-Controller can exchange data with a PROFINET IO-Device such as the
GCG001, an Application Relationship (connection) must be established between the devices.
The PROFINET IO-Controller automatically sets up the correct number and types of Application
Relationship and Communication Relationship channels (see below) based on its Proficy
Machine Edition (PME) configuration. Usually, only one Application Relationship is established
per IO-Device.
Communication Relationships within an Application Relationship
Within each Application Relationship, the PROFINET IO-Controller establishes the following
types of Communication Relationships (CRs):
•
Record Data CRs
– always the first to be established within an Application Relationship.
Record Data Communication Relationships are used for non-real-time transfers of data
records such as startup parameter data, diagnostics data, identification data, and
configuration data.
•
IO CRs
– used for the real-time, cyclic transfer of IO data
•
Alarm CR
– used for real-time, acyclic transfer of alarms and events
The following illustration represents an Application Relationship between an RX3i PROFINET
Controller and an RX3i Genius Gateway GCG001.
Record Data Communication Relationship
I/O Data Communication Relationship
Alarm Communication Relationship
Application Relationship
Genius Gateway (GCG001)
1
2
3
4
PNS001
ACTIVE
USB
OK
LAN
STATUS
CONN
USB
IP ADDRESS
MAC ADDRESS
PORTS
TO INSTALL,
TORQUE TO
6 IN-LB.
IO DEVICE
FRONT
3 4
1 2
SD CARD
!
RX3i with PROFINET Controller (PNC)
Figure 5: Application Relationships between PROFINET Controller & Genius Gateway
12
Public
PACSystems RX3i Genius Communications Gateway User Manual
GFK-2892B
Содержание PACSystems RX3i Genius
Страница 10: ...Contents Notes 6 Public PACSystems RX3i Genius Communications Gateway User Manual GFK 2892B ...
Страница 22: ...Chapter 1 Introduction Notes 18 Public PACSystems RX3i Genius Communications Gateway User Manual GFK 2892B ...
Страница 32: ...Chapter 2 Installation Notes 28 Public PACSystems RX3i Genius Communications Gateway User Manual GFK 2892B ...
Страница 48: ...Chapter 5 Diagnostics Notes 44 Public PACSystems RX3i Genius Communications Gateway User Manual GFK 2892B ...