Improved security and network compatibility

Improvements

Increased robustness in case of faults on Profibus DP as well as PROFINET.(internal ref.: 26940)
Communication via UDP connections has been further optimized. The robustness in case of a faulty connection setup with TUSEND has been increased.(internal ref.: 27104)
Online observation of variables in large networks has been improved.(internal ref.: 27189)
Remote port can be specified for passive TCP connections. Remote port "0" is still rejected.(internal ref.: 27209)
Further increase of robustness when calling the SFC70 with incorrect parameters.(internal ref.: 27219)
In very rare cases, after adding an ET 200M output module using H-CiR, a momentary 1 signal could occur at the outputs of the newly added module. This behavior has been changed.(internal ref.: 27302)
Increase in robustness for CiR charging operations.(internal ref.: 27316, 464584)
The automation system remains available after an SZL query (SZL ID=0x19a, MAC address) on a failed device.(internal ref.: 27344)