Delete An Already Used Channel; Change The Update Time; Motivation For Cir Via Profinet Dp - Siemens SIMATIC CPU 410 System Manual

Plant changes in RUN - CiR

11.5 Motivation for CiR via PROFINET DP

11.4.4.3

Delete an already used channel.

Procedure
Proceed as follows to remove a channel that has not been used:
1. Change the user program so that the channel to be removed is no longer evaluated, and
download it to the CPU.
2. Change the hardware configuration and download it to the CPU.
3. Save your project.
4. Change the corresponding hardware (remove sensor or actuator, etc.).
11.4.4.4

Change the update time

Procedure
You can change the update time of a CiR-capable device in RUN. To do so, change the
update time in HW Config and load the new configuration to the CPU.
You cannot change the send clock in RUN.
11.5 Motivation for CiR via PROFINET DP
There are plants that must not be shut down during operation. This may be the case, for
example, due to the complexity of the automated process or due to high restart costs.
Nevertheless, it may be necessary to expand or modify a configuration.
With the help of a plant change during operation using CiR, certain configuration changes
can be made in RUN. In so doing, processing is stopped for a brief time interval. The upper
limit of this time interval is 60 ms. Process inputs retain their last value during this time.
Note
The term "CiR" stands for "Configuration in RUN". It refers to the method described in this
documentation for modifying a plant during operation. The requirements listed below must be
met for this.
Hardware requirements for PROFIBUS DP
The following hardware and firmware requirements must be met for plant changes in RUN
using CiR:
● If you want to make plant changes in RUN to a DP master system with external DP
master (CP 443-5 extended), the external DP master must have at least firmware version
V5.0.
● If you want to add modules to ET 200M: Use of the IM 153-2 as of MLFB 6ES7153-
2BA00-0XB0 or of the IM 153-2FO as of MLFB 6ES7153-2BB00-0XB0. You must also
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CPU 410 Process Automation/CPU 410 SMART
System Manual, 05/2017, A5E31622160-AC