Web interface
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The table columns show the timing of the events. The ”Last minute” column
shows the current condition of the PROFINET network. The ”Last cycle”
column shows the most recent cycle set (1- 120 hours). The ”History”
column gives all data from the beginning of the analysis and after Delete
data/List respectively.
4.2 Parameters of web interface
4.2.1 External diagnosis
If an PROFINET I/O device detects a problem that occurs
externally at the device (no load voltage, actor-sensor short circuit
etc.), this device keeps on communicating but sends an alarm to
the controller to report this condition
4.2.2 Internal diagnosis
An internal diagnosis of a field device will be communicated if the
device has an internal fault, the configuration is no longer in
conformity or the device suffers serious defects. In most cases it
results in a restart of the device.
4.2.3 Utilization
The utilization describes the use of the bandwidth which is 100
Mbit/ for PROFINET. In other words: 20 Mbit/s are transmitted at a
utilization rate of 20%. Indu-Sol’s experience has shown that the
utilization rates should not be greater than 20%. For the
acceptance of a system the network quality in terms of with
"utilization" must be verified through a permanent recording of the
telegrams.
4.2.4 Data throughput
The term "data throughput" in the PROFINET means an amount of
data per unit of time that can be processed by the relevant control
system (related to the process image). As a standard value 4,500
Byte/ms should not be exceeded for this purpose. The value
obtained should be documented as reference value.
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