Example Of A Configuration Control - Siemens SIMATIC S7-1500 System Manual

Behavior during operation
Effect of the discrepancy between the configured configuration and real configuration:
● For the online display and for the display in the diagnostics buffer (module OK or module
If modules are entered as missing in the control data record, the automation system behaves
as follows:
● Modules designated as not present in the control data record do not supply diagnostics
● Direct writing access to the outputs or writing access to the process image of outputs that
● Direct read access to the inputs or read access to the process image of inputs that are
● Write data record to module that is not present: Remains without effect; no error is
● Read data record from module that is not present: An error is signaled because a valid
Error messages
The following error messages are returned if an error occurs during writing of the control
data record:
Table 8- 1
Error code
80B1
80B5
80E2
80B8
8.3.2

Example of a configuration control

A configuration consisting of a system power supply, CPU, and three I/O modules is
configured in the following section.
The module at slot 3 is not present in the first configuration expansion and is "hidden" by the
configuration control.
In the second configuration expansion, the module that was initially hidden is located in the
last slot. The added slot is made known to the CPU by a modified control data record.
S7-1500 Automation System
System Manual, 02/2014, A5E03461182-AB
faulty), the hardware configuration is always used and not the differing real configuration.
Example: A module outputs diagnostics data. This module is configured in slot 4, but is
really inserted in slot 3 (missing module; see example in the next section). In the online
view, a configured slot 4 is indicated as faulty. In the real configuration, the module at
slot 3 indicates an error via an LED display.
and their status is always OK. The value status is OK.
are not present: Remains without effect; no access error is signaled.
not present: Value "0" is supplied; no access error is signaled.
signaled.
data record cannot be returned.
Error messages
H
H
H
H
Meaning
Invalid length; the length information in data record 196 is not
correct.
Configuration control parameters not assigned.
Data record was transferred in the wrong OB context. The data
record must be transferred in the startup program.
Parameter error; module signals invalid parameters.
Flexible automation concepts
8.3 Configuration control
103