msgId | Optional field for a message ID that applications can use to identify responses. |
dvName | Unique name of this item's associated DataView definition. |
dvItemId | Service-generated ID (see DataViewItem) of the item to be updated, or -1 if you supply values for all key fields in fieldValues (see below). |
timeStamp | Timestamp of this update (seconds since epoch). If the value given is -1.0, the service will populate this field using correlator currentTime. Note that the default value of the field is 0.0, which prevents trend graphs from updating. |
fieldValues | A dictionary of field-position/field-value pairs that specifies the new field values. Field values are in string form. A field's position is its index in the fieldNames sequence in the associated DataView definition. See also: Looking Up Field Positions. If dvItemId is -1, fieldValues must include the key values. |
extraParams | Optional field that future implementations may use. |