We are about to start up a PLC to PLC safety communication process with 6 AWB2030 from 2018 with firmware 1.6.3. have there been improvements to communication stability in later firmware releases?
Yes, there have been improvements and bug fixes.
We currently are on firmware 2.05.02 You can download the firmware on hte linked support page below. it comes in a zip file that contains the firmware and a document with the changelogs.
https://www.anybus.com/technical-support/pages/files-and-documentation?ordercode=AWB2030