Plant changes in RUN - CiR
11.4 Re-configuring I/O modules and ports in IO devices
CPU 410 Process Automation/CPU 410 SMART
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System Manual, 05/2017, A5E31622160-AC
Hardware requirements
The I/O modules that can be re-configured in CPU RUN are listed in the info text in the
"Hardware catalog" window.
11.4.2
I/O module response to re-configuration
Principle
The following three responses are possible during re-configuration of input modules:
●
The channels that are not involved still provide the current process value.
●
The channels that are not involved provide the last process value that was valid before
the parameter assignment.
●
All channels return the value "0" (DI or DO I/O modules) or W#16#7FFF (AI or AO I/O
modules).
Please refer to the technical specifications of the individual I/O modules for their responses.
Output modules behave as follows during re-configuration:
The channels that are not involved output the last output value that was valid before the
parameter assignment.
11.4.3
CPU response during reconfiguration
Re-configuration sequence
Once you have made the parameter changes in HW Config and have downloaded them to
the CPU in RUN mode, the CPU runs the tests described in "Behavior of the CPU after
download of the configuration in RUN" and the status of the input and output values changes
to "BAD". This indicates that as of now the input or output data of the I/O modules in
question may no longer be correct. You may no longer call any functions that trigger jobs for
sending data records to the I/O modules involved, otherwise a conflict could occur between
the data records sent by the system and those sent by the user.
You may only access those values in the process image that belong to the process image
partition of the currently processed OB.