Profinet System Operation; Profinet Operation Overview - Emerson PACSystems RX3i User Manual

RSTI-EP PROFINET I/O Controller User Manual
GFK-2571R
Section 4:
This Section describes:
•

PROFINET Operation Overview

• Operations of the PROFINET Controller in the RX3i and RSTi-EP
• I/O Scan Timing
• RX3i and RSTi-EP CPU Operations for PROFINET
4.1 PROFINET Operation Overview
An RX3i or RSTi-EP CPU uses PROFINET communications for data exchange between it (as
the PROFINET Controller) and IO-Devices connected on the same PROFINET network and
configured to be under its control. The PROFINET Controller function may be realized by
utilizing the embedded PROFINET Controller option in RX3i CPL410/CPE400 LAN2 or
CPE330 LAN2 or RSTi-EP CPE100/CPE115 LAN2. It may also be realized by installing a rack-
mounted IC695PNC001 in the CPU backplane, where permitted.
In all cases, the port used for PROFINET communications is an Ethernet port. While
configured for PROFINET, the same network may also be used for basic Ethernet
communications. However, use of a separate Ethernet LAN and RX3i Ethernet interface is
recommended for most applications.

PROFINET System Operation

PROFINET System Operation
- PROFINET Communications
Application Relationships
-
Types of PROFINET Communications
-
- External Switch VLAN Priority Settings
Duplicate Device IP Address Detection
-
Duplicate Controller IP Address Detection
-
Resolving Duplicate IP Addresses
-
Reference ID Variables for the user Application
-
The PNIO_DEV_COMM Function Block
-
Reset Smart Module for the PNC001
-
DO I/O for Remote I/O Modules
-
- Scan Set I/O for Remote I/O Modules
RX3i and RSTi-EP CPU Defaults Inputs
-
RX3i and RSTi-EP CPU Defaults Outputs
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Section 4
May 2021
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