What is temporary correction TC16 meant for
When only focusing 800xA Operations software, I see at least five (5) branches where TC16 has been released (=five different TC16 with totally different meaning). Widening the scope for Control IT, AO, IM, PLCC, etc may reveal numerous of other "TC16"
TCs are targeted for specific problems at specific installations. For 800xA Operations, TCs are periodically collected and merged into cumulative "rollups" which are published on ABB Library for download (subscription/Sentinel required). ABB 800xA Base 6.0.3 RU5 is a sum of RU1+RU2+RU3+RU4+TCs "on RU4".
Extremely rarely, TCs are put out on ABB Library
Most problems are given a Product Issue Number, this number will be documented in the support case, TC release note and should also appear in release notes of subsequent rollups.
Example of a PIN from 800xA Base 6.0.3 RU5