Naja jedes Update enthält ja das vorherige Update bzw. alle vorherigen Updates daher die knapp 3 GB. Die release notes gibts doch zusammen mit dem Update (wobei da wie immer nicht viel drin steht).
2.1 Improvements in Update 2
Update 2 contains the following improvements and changes:
Working with the TIA Portal
Stability when working with the TIA Portal has been improved, partly based on the feedback
from returned crash reports.
Non-typified notation for time constants
In V15 the program editor does not accept the non-typified input of time constants. Time
constants must always be entered in typified notation (for example, t#500ms, t#0.5s).
This behavior is corrected with V15 Update 2. Non-typified constants (such as 500ms, 0.5s)
are now again accepted for the following data types: Date, TOD, LTOD, S5Time, Time, LTime,
LDT.
Zones for 2D kinematics (S7-1500T)
When using the motion control instructions "MC_DefineWorkspaceZone" and
"MC_DefineKinematicsZone" to define zones for 2D kinematics and 2D kinematics with
orientation, only the value 0.0 is permitted at the "Frame.y", "Frame.a", and "Frame.c"
parameters with the firmware version V2.5. The ErrorID 16#80C4 (invalid frame) is displayed
for values other than 0.0.
This behavior is corrected with firmware version V2.5.2.
Jogging or positioning the orientation axis A4 with the Kinematics control panel (S7-1500T)
With firmware version V2.5, you can only position orientation axis A4 in the world coordinate
system (WCS) with the operating mode "Jog to target position" on the Kinematics control panel.
This behavior is corrected with firmware version V2.5.2.
Extended Motion Control Resources (S7-1500T)
If you use multiple kinematics technology objects and multiple cam technology objects with
firmware version V2.5, you cannot completely assign the "Extended Motion Control
Resources".
This behavior is corrected with firmware version V2.5.2.
Restarting a kinematics technology object (S7-1500T)
Using "MC_Reset" jobs with the parameter "Restart" = TRUE at the kinematics technology
object can later result in the kinematics technology object refusing all commands with ErrorID
16#8001 with firmware version V2.5.
This behavior is corrected with firmware version V2.5.2.