PROFINET IO Controller - Overview
Object: PROFINET IO controller
This tab shows an overview of all devices with their communication settings. The station name, the IP configuration, and the transmission speed can all be modified directly in the list. For the other parameters, the Communication Settings dialog opens.
These settings are overwritten by the settings of the device.
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Sets the IP address of the selected device to a value within the standard address range. This range is defined in the settings of the controller. The command is also available in the context menu of the selected line. |
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Opens the Communication Settings dialog. Here is where the transmission speed for I/O data is configured for all selected devices. For individual parameters (RT class, SendClock, reduction), a value range can be selected that is valid for all selected devices. The command is also available in the context menu of the selected line. |
Dialog 'Communication Settings'
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Send Clock (ms) |
Send clock time (in milliseconds). |
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Reduction Ratio |
Scaling factor The transmission interval results from the Send Clock multiplied by the Reduction Ratio. Therefore, a Send Clock of 1ms and a Reduction Ratio of 4 means that I/O data is sent every 4ms. |
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Phase |
With a Reduction Ratio of n, the transmission interval is subdivided into phases 1 to n (where transmission is in one phase only). You can determine the phase for transmission for the purpose of load distribution. If Send Clock = 1 and Reduction Ratio = 4 (as in the example above), then you could configure phases 1 - 4. For four slaves with this send clock and reduction ratio settings, you could assign one of the four phases to each of the four slaves. In this way, only one data package is sent in each of the four phases of the clock time and the load is distributed equally. |
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Watchdog (ms) |
Monitoring time. Possible values: 3 ms to 1920 ms. (In steps, depends on Send Clock * Reduction Ratio) A connection is canceled when the controller or the PROFINET IO device does not receive I/O data from the communication peer within this time period. The device enters error mode and switches the outputs to default values. |
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VLAN ID |
VLAN identifier: Number between 0 and 4095 for VLAN type 802.1Q. Note: For newer devices compliant with PROFINET IOspecification V2.3, only "0" is still permitted. |
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RT Class |
If available, you can select the required RT class from the list (real-time communication). |
See also
