Configuration In Run - Siemens SIMATIC S7-400 Configuration And Use Manual

2.5

Configuration in Run

Introduction
The ability to modify the system during operation using CiR (Configuration in RUN)
allows you to make certain changes to the configuration in the RUN mode.
Processing is halted for a brief period in order to accomplish this. During this time,
the process inputs retain their most recent value.
Area of Application
You can modify the system during operation using CiR in system segments with
distributed I/O. This can be done with all standard CPUs of the S7-400 and for the
fault-tolerant S7-400H-CPUs running in single mode.
Permitted Configuration Changes in Run Overview
The following modifications can be made to the system in the Run mode:
• Modules can be added to the modular DP slave ET 200M, if it has not been
connected as a DPV0 slave (using a GSD file).
• ET 200M modules can be reconfigured, for example, another interrupt limit can
be selected or previously unused channels can be used.
• A previously unused channel in a module or a module for the modular slaves
ET 200M, ET 200S, ET 200iS can be used.
• DP slaves can be added to an existing DP master system.
• PA slaves (field devices) can be added to an existing PA master system.
• DP/PA couplers can be added downstream from an IM157.
• PA links (including PA master systems) can be added to an existing DP master
system.
• Modules can be assigned to a process image partition.
• Existing modules in ET 200M stations (standard modules and fail-safe signal
modules in standard mode) can be reconfigured.
• Changes can be reversed: added modules, DP slaves and PA slaves (field
devices) can be removed.
Configuration Changes in Run with Fault-tolerant CPUs
In addition to the system changes described above, you can make the following
configuration changes in Run when using fault-tolerant automation systems:
• Upgrade to a newer product version
• Switch the master with only one available redundancy coupling
Automation System S7-400 Configuration and Use
A5E00442711-02
CPUs of the S7-400
2-11