Changes To The Configuration Of An H-System That Uses Profibus Dp - Siemens SIMATIC PCS 7 Operation And Maintenance

Important restrictions for delta configuration
● A new DP/PA slave must be assigned a bus address higher than all addresses which
have already been configured.
● New modules in the ET 200M are inserted and fastened into the next available configured
slot.
● All free module slots at the end of an ET 200iSP station must have already had non-
configured reserve modules allocated to them and may only be replaced individually, one
after the other, as the entire ET 200iSP station will enter STOP mode if it has two or more
free slots. A new module is then plugged into the configured slot in place of the first
reserve module.
● Changing of I/Os and slave addresses is not possible.
Note
You can find special considerations for using an ET 200iSP on a standard AS described
in the section titled "Configuration changes in RUN" in the "SIMATIC Distributed I/O ET
200iSP" (https://support.industry.siemens.com/cs/ww/en/view/98821323) manual.
7.1.3

Changes to the configuration of an H-system that uses PROFIBUS DP

The basics, configuration and application of configuration changes in RUN for an H system
are described in the following manuals:
● Manual "SIMATIC Process Control System PCS 7 – High Availability Process Control
Systems (https://support.industry.siemens.com/cs/ww/en/view/109746538)"
● Manual "SIMATIC Fault-tolerant Systems S7-400H
(https://support.industry.siemens.com/cs/ww/en/view/82478488)"
● Manual "SIMATIC PCS 7 Process Control System CPU 410 Process Automation
(https://support.industry.siemens.com/cs/ww/en/view/109748473)".
The most important points are summarized below.
Principle
In contrast to a standard AS, the configuration of an H system is changed not via CiR
objects, but by means of a master/standby switchover with the modified configuration. This
means that many of the restrictions described in the previous section do not apply here. This
means changes in HW Config can be downloaded during operation without previously
activating a function.
Compendium Part D - Operation and Maintenance (V9.0)
Operating Manual, 02/2018, A5E43228948-AA
AS and OS expansions
7.1 Changes to the AS configuration
77