Plant changes in RUN - CiR
11.8 Procedure for PROFIBUS DP
CPU 410 Process Automation/CPU 410 SMART
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System Manual, 05/2017, A5E31622160-AC
I/O Volume for Future Use with CiR Objects and CiR Modules
For all DP masters, the following rules apply to future utilization of the I/O bytes:
I/O
Rule 1
Inputs
The total number of physical configured user addresses for inputs and for the input
bytes that can be utilized in the future may not exceed the volume of dynamic pro-
ject data in the corresponding DP master.
Outputs
The total number of physical configured user addresses for outputs and for the
output bytes that can be utilized in the future may not exceed the volume of dynam-
ic project data in the corresponding DP master.
HW Config monitors compliance with these rules immediately when you define CiR elements
for a DP master system.
In order to provide an optimal flexibility for the use of CiR elements, however, the following
applies to the CPU:
I/O
Rule 2
Inputs
The total number of physical configured inputs and of input bytes that can be uti-
lized in the future may not exceed the volume of dynamic project data in the CPU.
Outputs
The total number of physical configured inputs and of input bytes that can be uti-
lized in the future may not exceed the volume of dynamic project data in the CPU.
HW Config performs a check to verify that the CPU is equipped with sufficient address space
resources for handling the number of added slaves and/or modules only after the CiR
elements have been put into use.
11.8
Procedure for PROFIBUS DP
11.8.1
Basic Procedures in STOP Mode
11.8.1.1
Overview
Note
Back up your current configuration after each download of the station configuration from HW
Config (regardless of the operating state of the CPU). This is the only way for you to ensure
that you can continue working with the backed up project in case of an error (loss of data)
without loss of the CiR capability.
