What is the best example code for implicit I/O communication on Ethernet/IP?

Tiger Yoo

• February 14, 2024 06:01
• Edited

Hello ~

I am implementing the Ethernet/IP implicit I/O communication with PLC. 

Unfortunately, I am newbie regarding Ethernet/IP and Anybus compact com 40. 

I am looking around the host application example code. 

Each project has a few of example apps. 

Q1)

Which project is the best for implicit I/O communication.  

I guess that appl_adimap_asm.c example is suitable, is it right?

or is it enough appl_adimap_speed_example.c?

Q2)

"Process Data" that is described in the anybus documents and implicit I/O data set has same meaning?

 

0

• Official comment

  

  ALK

  • February 22, 2024 11:03

  Good day sir,

  (1) I would definitely start out with the speed_example application as it exchanges two bytes in each direction.

  (2) Yes, process data corresponds to the EtherNet/IP terminology "implicit I/O data".  When configuring an EtherNet/IP Scanner (the network master) you may also encounter the terms "exclusive owner" or "Class 1 connection".  This is want you want.

  If you need a PC based EtherNet/IP master simulator, I can recommend the open source EtherNet/IP Explorer.  Here is a KB article including a short video on how to configure it for an implicit data connection.

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