CiR Objects and CiR Modules

A system modification during runtime is based on the provisions you have made in

your initial configuration for an expansion of your PLC hardware. Define suitable

CiR compatible elements that you can later replace step-by-step in RUN mode with

real objects (slaves and/or modules). You can then download such a modified

configuration to the CPU during runtime.

Procedure

The table below shows the procedures required for modification of the program

and of the configuration, as well as the corresponding system phase.

Step      Action                                                                            CPU mode              System status

   1 Configuration of your current (real) system configuration         STOP                       Offline configuration

2 Defining CiR elements                                                              STOP                       Offline configuration

3 Configuration download                                                            STOP                       Commissioning

4 Conversion of CiR elements to real objects where

required.

System modifications are only possible on master

systems which contain a CiR object or on ET 200M

stations which are equipped with a CiR module.                         RUN                        Continuous operation

If required, execute several passes of the CiR sequence (step 4 of the table

above). You merely have to provide a sufficient number of slaves or adequate I/O

volume for all of your system expansions before you switch to continuous

operation.