Siemens Simatic ET200pro Operating Instruction page 77

Parameter assignment of startup behavior
You can assign parameters for the behavior of the CPU in the Startup group of the CPU
properties.
Setting the startup behavior
To set the startup characteristics, follow these steps:
1. Select the CPU in the device view of the hardware network editor of STEP 7.
2. In the properties under "General" select the "Startup" area.
Figure 7-4
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CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
Operating Instructions, 09/2016, A5E35873416-AA
Setting the startup characteristics
Sets the startup type after POWER ON
Defines the startup behavior for the case where a module in a slot does not correspond
to the configured module. This parameter applies to the CPU and to all the modules for
which no other setting was selected.
• Startup CPU only if compatible: In this setting a module on a configured slot has to be
compatible with the configured module. Compatible means that the module matches
the number of inputs and output and must match with respect to its electrical and
functional properties.
• Startup CPU even if mismatch: At this setting the CPU starts up irrespective of the
type of module plugged.
Specifies a maximum period (default: 60 000 ms) in which the I/O must be ready for op-
eration. The CPU changes to RUN.
If the central and distributed I/O are not ready for operation within the configuration time,
the startup characteristics of the CPU depend on the setting of the "Comparison preset
to actual configuration" parameter.
Commissioning
7.4 Operating modes of the CPU
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