BK09. How to Retain/Persistent Variables using Beckhoff TwinCAT3 CX9020 U900 UPS

[@vijayakumar_6099]

hello sir, How are you? Hope you are fine. As i said in mail i am big fan of your channel .. keep rocking sir. Small doubt How you identified we have to add Tc2_Utilities for SPDM_2PASS ? mentioned in manual?

[@electricalautomation]

Hello vijaya, the SPDM_2PASS is defined in the system library "Tc2_Utilities", once you add "Tc2_Utilities" into "References", the SPDM_2PASS will be defined and it is equal to "0". Pls find the link infosys.beckhoff.com/content/1033/tcplclib_tc2_utilities/35342347.html?id=5134531873383837677