Profinet Communications - Emerson PACSystems RX3i User Manual

User Manual
GFK-2737L
For other options, refer to Adding and Configuring an Ethernet Port
.
1.4

PROFINET Communications

For a full discussion of PROFINET Communications and interactions with the controlling
RX3i CPU, refer to Chapter 4 of the PACSystems RX3i PROFINET Controller User Manual,
GFK-2571.
The following topics are covered:
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PROFINET Operation Overview
PROFINET Communications
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Application Relationships
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Types of PROFINET Communications
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Operations of the PROFINET Controller in the RX3i System
Duplicate PROFINET Device IP Address
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Duplicate PROFINET Controller IP Address
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Resolving Duplicate IP Addresses
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I/O Scanning
Data Coherency
Performance Factors
PROFINET IO Update Rate Configuration
RX3i CPU Operations for PROFINET
Reference ID Variables for the RX3i Application
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PNIO_DEV_COMM Function Block
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Reset Smart Module for the PROFINET Controller
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DO I/O for Remote IO Modules
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Scan Set I/O for Remote I/O Modules
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RX3i CPU Defaults - Inputs
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RX3i CPU Defaults – Outputs
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Jul 2022
Section 1