This article describes how to get the system time fro a WAGO PLC (in my sample I used the 750-881 module) using Codesys 2.3 and SysLibRTC or SysLibTime libraries.
(note that Wago 750-881 PLC has an internal RTC module with a 6 day life without power supply)
SysLibRTC.lib --> it permits to read the Real Time Clock from PLC
- I'll use "SysRtCGetTime"
SysLibTime.lib --> read the System Time
This is the PLC_PRG code:
This is the result: