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| Name | Meaning | Unit | Default value |
|---|---|---|---|
| Sampling type | The parameter defines the sampling frequency of the monitored objects. When using the "Publishing rate", the frequency is equivalent to the Requested Publishing Interval, which is set on the communication station level. "Practical fastest rate" sets the sampling frequency on the maximum value. "Custom rate" enables the specification of a custom sampling interval, which may be defined in "Sampling Time". | Publishing rate/Practical fastest rate/Custom rate | Publishing rate |
| Sampling time | The parameter allows you to set the custom sampling frequency if "Sampling type" is "Custom rate". | ss.ms | 0.0 |
| DeadBand type | Deadband is a band in which the change of value does not cause a Data Change Notification, which is part of Publish Message. When using "None", this band is ignored. Otherwise, there is used the relative or absolute value ("Percent"/"Absolute") from the "DeadBand value". | None/Absolute/Percent | None |
| DeadBand value | The parameter defines the custom value of a deadband if you chose the relative/absolute value ("Percent"/"Absolute"). | 0.0 | |
| Trigger type | The parameter specifies the condition that causes Data Change Notification. When using "Status", only the status change is reported. Change of value and timestamp are ignored. When using "Status,Value", the change of timestamp is ignored. "Status,Value,Timestamp" ensures the reporting in all options, i.e. when changing the status, value, or timestamp. Note: a specific Simatic S7-1500 did not send value changes if this parameter was set to default "Status, Value, Timestamp" - changing it to "Status, Value" helped. | Status/Status,Value/Status,Value,Timestamp | Status,Value,Timestamp |
Note: in patches newer than 7/24/2024, conversion of Integer32 and Unsigned32 values to absolute time is supported. The integer value is understood as Epoch (Unix Timestamp - number of seconds from 1.1.1970), while in the Station configuration on the Time parameters tab it is possible to set whether it is the number of seconds from UTC time or from local time.
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