Siemens SIMATIC ET 200AL, System Manual

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Connection resources
12.3 Display of the connection resources
Communication
Function Manual, 05/2021, A5E03735815-AJ
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S7-1500 and S7-300 comparison
You will find a comparison of how the communication resources of the S7-1500 and S7-300
are managed in this FAQ ( https://support.industry.siemens.com/cs/ww/en/view/109747092 ).
12.3 Display of the connection resources
Display of the connection resources in STEP 7 (offline view)
You can display the connection resources of an automation system in the hardware
configuration. You will find the connection resources in the Inspector window in the
properties of the CPU.
Figure 12-4 Example: Reserved and available connection resources (offline view)
① Station-specific connection resources
The columns of the station-specific connection resources provide information about the used
and available connection resources of the station.
In the example, a maximum of 256 station-specific connection resources are available for the
automation system.
•
10 reserved connection resources, of which 4 are already in use and a further 6 available.
The used resources are divided up as follows:
– 4 Resources for HMI communication
• 246 dynamic connection resources, of which 26 are already in use and a further 220
available.
The used resources are divided up as follows:
– 6 resources for HMI communication
– 7 resources for S7 communication
– 13 resources for Open User Communication