Siemens SIMATIC S7-300 Reference Manual page 7

Changes and blocks
Changed retentivity settings (bit
memory area, DB area)
Motion Control technology
objects: Changes to MC servo
cycle clock, change from
asynchronous to cyclic (and
vice-versa). Changes to the HW
interface of the TO
(init) means that the current values of the DBs are overwritten by start values during loading.
A5E33285102-AB
S7-300 S7-400
STOP STOP
-- --
S7-1200 S7-1500
as of V4.0 V1.7
STOP STOP
-- STOP
S7-1200 S7-1200
V1.0 - 2.1 V2.2 - V3.0
STOP STOP
-- --
S7-1500
V1.0-V1.6
STOP
STOP
Page 6