Siemens SIMATIC ET 200AL, System Manual

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Functions
5.10 Standard machine projects
PROFINET with STEP 7
Function Manual, 05/2021, A5E03444486-AL
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The following values are possible for the MODE input parameter:
MODE Description
1 All IO devices of the IO system can be disabled by calling the instruction with MODE 1.
The "ReconfigIOSystem" instruction uses the "D_ACT_DP" instruction internally. "Recon-
figIOSystem" returns errors that are detected by D_ACT_DP in the following output
parameters:
•
STATUS (error code)
• ERR_INFO (hardware identifier of the IO device causing the error).
In STATUS and ERR_INFO, the CPU enters the last determined error/HW identifier and
in so doing overwrites an existing error code. For this reason, additional errors can be
present besides the entered error.
2 For controlling the actual configuration of the IO system, the instruction transfers the
data record to the PROFINET interface, which is addressed with LADDR block parame-
ter (HW identifier of the PROFINET interface).
3 All non-optional IO devices in the IO system and optional IO devices that are listed in
the control data record CTRLREC are enabled.
The optional IO devices that are not listed in the CTRLREC data record remain disabled.
If IO devices that are part of docking units (alternating IO devices in operation) are
listed in the CTRLREC control data record, the PN IO system reacts as follows:
•
IO devices of the docking units remain disabled when ReconfigIOSystem is called
with MODE 3.
This reaction corresponds to the reaction of a configuration without configuration-
controlled IO devices. IO devices of docking units are disabled by default and must
be enabled in the user program.
For more information on docking units, refer to the section Docking systems (Page 1).