Configuring Isochronous Mode For Distributed I/O On Profinet Io - Siemens SIMATIC S7-1500 Function Manual

Configuring isochronous mode

5.1 Configuring isochronous mode for distributed I/O on PROFINET IO

5.1 Configuring isochronous mode for distributed I/O on PROFINET IO
Introduction
The configuring of isochronous mode for a module is described in the following for an IO
device based on the ET 200MP distributed I/O system. The procedure described also
applies to other distributed I/O systems (e.g., ET 200S or ET 200SP).
The IO controller is an S7-1500 CPU.
Requirements
● The network view of STEP 7 is open.
● An S7-1500 CPU has been placed (e.g. CPU 1516-3 PN/DP).
● An IM 155-5 PN HF interface module (ET 200MP) has been placed and networked with
the CPU via PROFINET IO.
● All requirements for an IRT configuration are met:
– The ports of the networked PROFINET interfaces of the CPU and interface module
– The RT class of the PROFINET interface of the interface module is set to "IRT" (area
– The "sync master" and "sync slave" roles are assigned for the PROFINET interfaces
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are interconnected (topology configuration).
"Advanced options > Real time settings > Synchronization").
of the CPU and interface module (in the properties of a PROFINET interface: area
"Advanced options" > "Real time settings" > "Synchronization").
Isochronous mode
Function Manual, 10/2018, A5E43884988-AA