...
If Payload Type = Sparkplug Host: A regular expression (e.g., spBv1.0/Sparkplug Devices/.*/MyDevice/Sensor2) can be used instead of message_type to cover all message types. It is, however, recommended to omit the namespace and message_type parts and write the Topic in the abbreviated form group_id/edge_node_id/[device_id] (e.g., Sparkplug Devices/MyDevice/Sensor2).
Note: Disabling communication on all stations will cause communication to be disconnected from the MQTT broker.
If Payload Type = Sparkplug Edge Node: One station on the line should correspond to the Edge Node; its address must be in the form group/node (e.g., myGroup/myNode). There may be other stations corresponding to the Device/Sensor on the line, their addresses must be in the form group/node/device (e.g., myGroup/myNode/myDevice1), where group/node is the same as the address of the station corresponding to the Edge Node. According to the Sparkplug standard, these Device/Sensor stations belong to the corresponding Edge Node station (are its substations) and represent devices with which the Edge Node station communicates (e.g., via Modbus protocol).
Note: Disabling communication on the Edge Node station will cause communication to be disconnected from the MQTT broker.
Note: Kotva komunikacna_stanica_pozn komunikacna_stanica_pozn
If Payload Type = Sparkplug Host and the station address is in abbreviated form, the station doesn't process commands (DCMD, NCMD). If it is in the form of a regular expression ('namespace/group_id/.*/edge_node_id/[device_id]'), the station also processes commands (including the command sent by the D2000 KOM process if Send Node Control/Rebirth=YES). Therefore, we recommend specifying the station address in abbreviated form. If it is also necessary to process commands (from other Host Applications), then create another station with an address in the form of a regular expression (e.g. spBv1.0/Sparkplug Devices/DCMD/MyDevice).
If Payload Type = Sparkplug Edge Node, the station processes commands (DCMD, NCMD) and ignores data messages (NDATA, DDATA, NBIRTH, DBIRTH).
...