4.6 KiB
https://support.industry.siemens.com/cs/pd/578296?pdti=td&dl=en&lc=en-IT
The maximum number of nodes each PROFINET interface on the Siemens CPU 1515-2 PN can handle:
| PROFINET Interface | Ports | Maximum Number of Devices | Maximum IRT Devices |
|---|---|---|---|
| X1 | X1 P1R, X1 P2R | ==256== | 64 |
| X2 | X2 P1 | ==32== | 0 |
The differences between the two PROFINET interfaces of the Siemens CPU 1515-2 PN:
| Feature | PROFINET Interface X1 | PROFINET Interface X2 |
|---|---|---|
| Number of Ports | 2 (X1 P1R and X1 P2R) | 1 (X2 P1) |
| Supported Functions | - PROFINET IO RT (Real-Time) | - Basic PROFINET functionality |
| - PROFINET IO IRT (Isochronous Real-Time) | ||
| Typical Applications | - PROFINET IO communication | - HMI communication |
| - Real-time configuration | - Connection to engineering systems | |
| - Redundant ring topologies in Ethernet | - Connection to higher-level networks | |
| - Communication with other machines or automation cells | ||
| Device Limits | - Up to ==256 PROFINET IO devices== | - Up to ==32 PROFINET IO devices== |
| - Maximum of 64 IRT devices | - Does not support IRT devices | |
| Network Considerations | - IP subnets of both interfaces must be different; each interface's IP address should belong to distinct subnets. | - IP subnets of both interfaces must be different; each interface's IP address should belong to distinct subnets. |
Note: IRT stands for Isochronous Real-Time.
The OPC UA server functionality on the Siemens CPU 1515-2 PN is independent of the X1 and X2 PROFINET interfaces. The OPC UA server operates over the CPU's IP network and can be accessed through any network interface configured with an IP address, including both X1 and X2 ports. Therefore, there are no specific OPC UA restrictions tied to either the X1 or X2 ports. However, it's important to ensure that the network configuration, including IP addressing and subnetting, is correctly set up to facilitate OPC UA communication over the desired interface.
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