Siemens SIMATIC PCS 7 - Process Devices Plant View

Plant changes during redundant operation - H-CiR
12.8 Adding components
CPU 410 Process Automation/CPU 410 SMART
System Manual, 05/2017, A5E31622160-AC
207
12.8
Adding components
The same procedure applies for adding components irrespective of whether the distributed
I/O is connected over PROFIBUS DP or over PROFINET IO.
Starting situation
You have ensured that the CPU parameters (for example the monitoring times) are
compatible with the planned new program. You may first need to modify the CPU
parameters (see Editing CPU parameters (Page 217)).
The fault-tolerant system is operating in the redundant system state.
Procedure
If you are planning to add an IO device using an H-CiR operation and the device does not
support PROFINET LLDP mode V2.3, make sure that "Force IEC V2.2 LLDP mode" is
enabled from the outset for the IO controller. Otherwise, you cannot add the IO device using
H-CiR.
You can check which PROFINET LLDP mode supports an IO device and which PROFINET
LLDP mode is active for the IO controller in HW Config.
Follow the steps below to add hardware components to a fault-tolerant system in SIMATIC
PCS 7. Details of each step are described in a section.
Step
What has to be done?
See Chapter
1
Modify hardware
Modify hardware (Page 207)
2 Change hardware configuration offline Change hardware configuration offline
(Page 208)
3
Access H-CiR wizard
Opening the H-CiR wizard (Page 209)
4 Modify and download the user program Modify and download the user program
(Page 210)
Exceptions
This overall sequence for system modification does not apply in the following cases:
● For use of free channels on an existing module
● For adding of interface modules (see Chapter Addition of interface modules (Page 199))
12.8.1
Modify hardware
Initial situation
The fault-tolerant system is operating in the redundant system state.