SPRACH6F January   2019  – September 2025 66AK2G12 , AM2431 , AM2432 , AM2434 , AM3356 , AM3357 , AM3358 , AM3359 , AM4376 , AM4377 , AM4378 , AM4379 , AM5706 , AM5708 , AM5716 , AM5718 , AM5726 , AM5728 , AM5729 , AM5746 , AM5748 , AM5749 , AM6411 , AM6412 , AM6421 , AM6441 , AM6442 , AMIC110 , AMIC120

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Communication Protocols
    1. 2.1 PROFINET
    2. 2.2 EtherCAT
    3. 2.3 EtherNet/IP
    4. 2.4 IO-Link
    5. 2.5 Parallel Redundancy Protocol (PRP)
    6. 2.6 High-Availability Seamless Redundancy (HSR)
    7. 2.7 OPC UA
    8. 2.8 Modbus TCP/IP
  6. 3Sitara Support for 3rd Party Protocol Stacks
  7. 4Revision History

2.1 PROFINET

ICSS enabled devices have support for PROFINET® RT and IRT device based on the Siemens ERTEC device stack. The supported feature set is summarized in Table 2-1.

Table 2-1 Supported Feature Set
Feature Description Relevant Conformance Class Support
Mandatory Features CC-A
Real Time Cyclic - Class 1 Non-synchronized real time cyclic protocol CC-A,B,C Yes
Real Time Acyclic Real-time acyclic protocol CC-A,B,C Yes
Device diagnostics/Alarms Diagnostics and Maintenance Alarms CC-A,B,C Yes
Device identification (I&M0) Supported mandatory Identification records CC-A,B,C Yes
Neighborhood detection LLDP protocol CC-A,B,C Yes
Port-related network statuses via PROFINET PDEV records CC-A,B,C Yes
Optional Features CC-A
Extended Identification & Maintenance Supported extended I&M records CC-A,B,C I&M1, 2, 3, 4
Not Supported Extended I&M Records CC-A,B,C I&M5
Shared Input Multiple access to inputs by various controllers CC-A,B,C Yes
Shared device Distribution of device functions to various controllers CC-A,B,C Yes
Slave-to-slave communication Direct communication between IO-Devices CC-A,B,C No
Mandatory Features CC-B
Network diagnostics SNMP protocol CC-B,C Yes
Optional Features CC-B
Name assignment via DCP, PDEV Automatic addressing of devices after device replacement CC-B,C Yes
Configuration in Run (CiR) Configuration changes during operation CC-B,C Yes
Time sync Time stamping of I/O data CC-B,C Yes
Fibre-optic cable Support Fiber-optic cable diagnostics for POF/HCS CC-B,C No
Fast Start-Up Fast start-up after voltage recovery for switching operations CC-B Yes
Media redundancy protocol Higher availability through ring redundancy CC-B Yes
System redundancy (Mandatory only for PA) System redundancy with two I/O Controllers CC-B Yes
Mandatory Features CC-C
PROFINET with IRT Bandwidth reservation with update rates of 500µs and higher CC-C Yes
PROFINET with IRT Bandwidth reservation with update rates of 250µs CC-C In Progress
Optional Features CC-C
PROFINET with IRT Isochronous operation CC-C Yes
Update rates less than 250µs CC-C No
DFP Optimized IRT mode for line topologies CC-C No
Two-way transmission, MRPD Higher availability through harmonious redundancy switchover CC-C No