Event Configuration
When a DNP3 device sends event data to a Master, each event is sent in a format known as a DNP3 Object. The DNP3 standard specifies Objects and Variations, which define the type and format of the data sent between DNP3 devices. For example, Object 2 is defined in the DNP3 standard as a binary event object and is used to send binary event data between DNP3 devices. Object 2, Variation 1 is defined as a binary event object with no time stamp, while Object 2, Variation 2 is defined as a binary event object with a time stamp. DNP3 Object/Variations are usually written in abbreviated notation. For example, Object 2 Variation 1 is written as g2v1
When a DNP3 event object with a time stamp is specified, the time stamp for the event is applied by the SCADAPack x70 device at the time the event occurs. When these events are received by ClearSCADA, the ClearSCADA server stores the values in its historic database, using the time stamp supplied in the event object. When a DNP3 event object with no time stamp is specified, the values are stored in the ClearSCADA history database using the system time of the ClearSCADA server at the time the events are received by the ClearSCADA server.
Use the fields within the Event Configuration section of the DNP3 Slave tab to specify the DNP3 event objects that the outstation uses to send event data to ClearSCADA
Each Events field is a drop-down list. Select one of the DNP3 event objects supported by the SCADAPack x70 device.
We recommend that you choose With Time events, so that ClearSCADA logs the data using its original occurrence time, rather than the time that the event arrives at the server.
Specify the maximum number of events, regardless of type, that the outstation can store. The minimum value 10, maximum value 40000, the default setting is 5000.
If the number of events generated exceeds the configured amount, then the SCADAPack x70 generates an Event Buffer Overflow Alarm. Oldest events are discarded first.
Use to specify whether or not the outstation buffers multiple analog and floating point events or whether the DNP3 Slave overwrites existing events with a more recent event for the same point. Choose from:
The outstation buffers multiple events for each analog point generating events. Buffered events need to be timestamped for the A DNP3 Master requires buffered events to be timestamped to process them. If you select this mode you need to select one of the With Time in the Generate Analog Input Events settings for analog input events and float events.
This is the default setting.
The outstation only buffers the last analog or floating point event that was generated for each analog point that can generate events.
The DNP3 Slave overwrites any existing event that already exists in the event buffer for an integer or float point analog input that generates a new event. Events may exist for multiple points in the event buffer, but only one event per point is buffered.
Specify the DNP3 event object that the SCADAPack x70 device uses to send digital input point event data to ClearSCADA. Digital input events are also known as DNP3 binary input events. Choose from:
Use this setting to generate DNP3 group 2, variation 1 digital input event objects when timestamps are not required, or when the DNP3 Master does not support timestamped digital events. ClearSCADA stores the events in the history database using the time they arrive at the ClearSCADA server. Not recommended, as the actual occurrence time is lost.
The outstation does time stamp the event data. ClearSCADA stores the events in the history database using the time stamp applied by the outstation.
Use this setting to generate DNP3 group 2, variation 2 digital input event objects when the DNP3 Master supports timestamped digital events, but does not support relative time objects.
This is the default setting.
The outstation time stamps the event data. ClearSCADA stores the events in the history database using the time stamp applied by the outstation.
Use this setting to generate DNP3 group 2, variation 3 digital input events when the DNP3 Master supports relative time timestamps and DNP3 group 51, variation 1 and variation 2 CTO objects.
This option produces more efficient communications on a SCADAPack x70 device that regularly produces more than a few binary events every minute (either continuously, or in bursts).
The outstation automatically determines each point’s event size (16-bit or 32-bit), based on its configured DNP3 Object Type. You only need to specify a No Time or With Time option (you can choose either the 16-bit or 32-bit variation; both are equally valid).
The option that you specify in this field is used for analog input points that are configured with an Analog DNP Object Type(see Common Properties on Points used for DNP3 Communications). Choose from:
The outstation determines the resolution it uses to send event data (32-bit or 16-bit), based on the configured DNP3 static object data size, irrespective of the resolution option you choose here. 16-bit events with no time are sent as DNP3 group 32, variation 2 objects.
The outstation does not time stamp the event data. ClearSCADA stores the events in the history database using the time that the events arrive at the ClearSCADA server and not the actual occurrence time of the event.
The outstation determines the resolution it uses to send event data (32-bit or 16-bit), based on the configured DNP3 static object data size, irrespective of the resolution option you choose here. 32-bit events with no time are sent as DNP3 group 32, variation 1 objects.
The outstation does not time stamp the event data. ClearSCADA stores the events in the history database using the time that the events arrive at the ClearSCADA server and not the actual occurrence time of the event.
The DNP3 Slave automatically determines 16-bit or 32-bit event size for each point based on its DNP3 Static Group and Variation.
The outstation determines the resolution it uses to send event data (32-bit or 16-bit), based on the configured DNP3 static object data size, irrespective of the resolution option you choose here.
The outstation time stamps the event data. ClearSCADA stores the events in the history database using the time stamp applied by the outstation.
The outstation determines the resolution it uses to send event data (32-bit or 16-bit), based on the configured DNP3 static object data size, irrespective of the resolution option you choose here.
The outstation time stamps the event data. ClearSCADA stores the events in the history database using the time stamp applied by the outstation.
Specify the DNP3 event object that the outstation uses to send floating point event data to ClearSCADA. The option that you specify in this field is used for analog input points that are configured with a Float DNP Object Type(see Common Properties on Points used for DNP3 Communications). Choose from:
Analog event data is sent to as IEEE short floating point (32-bit) precision. The outstation time stamps the event data. ClearSCADA stores the events in the history database using the time stamp applied by the outstation.
Analog event data is sent to ClearSCADA as IEEE short floating point (32-bit) precision. The outstation does not time stamp the event data. ClearSCADA stores the events in the history database using the time they arrive at the ClearSCADA server. Not recommended, as the actual occurrence time is lost.
Specify the DNP3 event object that the outstation uses to report floating point analog input events in an unsolicited response or event class poll response. to ClearSCADA. Choose from:
Counter event data is sent to ClearSCADA with 16-bit resolution. The outstation does not time stamp the event data. ClearSCADA stores the events in the history database using the time they arrive at the ClearSCADA server and not the actual occurrence time of the event. 16-bit counter events with no time are sent as DNP3 group 22, variation 2 objects.
Counter event data is sent to ClearSCADA with 32-bit resolution. The outstation does not time stamp the event data. ClearSCADA stores the events in the history database using the time they arrive at the ClearSCADA server and not the actual occurrence time of the event. 32-bit counter events with no time are sent as DNP3 group 22, variation 1 objects.
Counter event data is sent to ClearSCADA with 16-bit resolution. The outstation time stamps the event data. ClearSCADA stores the events in the history database using the time stamp applied by the outstation. 16-bit counter events with time are sent as DNP3 group 32, variation 6 objects.
Counter event data is sent to ClearSCADA with 32-bit resolution. The outstation time stamps the event data. ClearSCADA stores the events in the history database using the time stamp applied by the outstation. 32-bit counter events with time are sent as DNP3 group 32, variation 5 objects.
This is the default setting.
The DNP3 Slave automatically determines 16-bit or 32-bit event size for each point based on its DNP3 Static Group and Variation.
The DNP3 standard specifies that analog values are signed, and counter values are unsigned. As such, the value returned by Analog Input Events - No Time (16 bit)or Analog Input Events - With Time (16 bit) has the range -32768 to 32767, whereas the value returned by Counter Input Events - No Time (16 bit) or Counter Input Events - With Time (16 bit) has the range 0 to 65535.
Specify the DNP3 event object that the SCADAPack x70 device uses to send binary output event data to ClearSCADA. Choose from:
The outstation does not time stamp the event data and generates DNP3 group 11, variation 1 digital output event objects when timestamps are not required or when the DNP3 Master does not support timestamped digital events. ClearSCADA stores the events in the history database using the time they arrive at the ClearSCADA server and not the actual occurrence time of the event.
If the DNP3 Master does not support digital output event objects, set the Point Data Class for each point to Local or Class 0.
The outstation does time stamp the event data. ClearSCADA stores the events in the history database using the time stamp applied by the outstation.
Specify the DNP3 event object that the SCADAPack x70 device uses to send integer analog output and float analog output events in an unsolicited response or event class poll response to ClearSCADA. Choose from:
The outstation does not time stamp the event data. ClearSCADA stores the events in the history database using the time they arrive at the ClearSCADA server and not the actual occurrence time of the event.
The DNP3 Slave generates events compatible with the analog output point's Static Group and Variation.
- 32-bit integer analog output events are sent as DNP3 group 42, variation 1 events.
- 16-bit integer analog output events are sent as DNP3 group 42, variation 2 events.
- 32-bit short floating point analog output events are sent as DNP3 group 42, variation 5 events.
The outstation does time stamp the output event data. ClearSCADA stores the events in the history database using the time stamp applied by the outstation.
The DNP3 Slave generates events compatible with the analog output point's Static Group and Variation.
- 32-bit integer analog output events are sent as DNP3 group 42, variation 3 events.
- 16-bit integer analog output events are sent as DNP3 group 42, variation 4 events.
- 32-bit short floating point analog output events are sent as DNP3 group 42, variation 7 events.
This is the default setting