Name Number Block version Interface change 
(AS STOP is not necessary 
if a CPU 410-5H with TCiR 
is used)
Code change
RED_F FC289 9.0 No Yes
PDM_MS*
* The block PDM_MS 
is only required for fu‐
ture versions and 
should currently not 
be used. This means 
download of changes 
is still possible 
FB81 9.0 Yes* No
Note
● Blocks for which only attributes, message texts, and/or version number were changed, are 
not listed.
● If "Yes" is listed in the column "Interface change" and "No" in the column "Code change", 
the interfaces were prepared for a future function.
New features and changes as compared to previous versions
6.3 Version 9.0 SP1
PCS 7 Basis Library Readme V9.0 SP1 (online)
24 Readme, V9.0 SP1, A5E42614246-AA