Siemens C79000-Z7076-C552-01 ユーザーズマニュアル

New Functions in Version V4.02

4

Supplement to the STEP 7 User Manual V4.0

C79000-Z7076-C552-01

There are many new components in version 4.02; for example, racks, C7 control
systems, or CPUs in the hardware catalog. It is not possible to list all the updates
or changes within the scope of this supplement; instead, only the new CPU
parameters (which are relevant to the operation of the latest CPUs) are covered:

Test operation/
process operation

(see also
Chapter 9)

Can be set in the “Protection” tab.

In process operation, debugging functions such as “program
status” or “monitoring/modifying variables” are limited to
prevent the permissible increase in the scan cycle time from
being exceeded. For example, call conditions are not
permitted in the program status, and the status display for a
programmed loop is aborted on return.

It is not possible to debug with breakpoints in process
operation, nor can you execute a program step-by-step.

In test operation, all programming device/PC debugging
functions can be used without restriction, including those
which result in increases in the scan cycle time.

Protection level

Can be set in the “Protection” tab. Write access, and read
and write access to the CPU can be made dependent on the
use of a password. The password is set in this tab.

If you hold the CTRL key down and select several modules or DP slaves, you can
then paste these modules/DP slaves at another location.

Before pasting copied DP slaves, you must select the DP master system to which
the DP slaves are to be “attached.”