4.4.3 Send Alarm Example ChannelData Message
| Topic Version | 1 | Published | 10/16/2017 | |
| For Standard | ETPW20 v1 | |||
The example here shows the message received by a channel-streaming consumer (in response to the ChannelMetadata message in Section 4.4.2 ChannelMetadata Message ) for the alarm “BOP pressure dropped” with the value attributes described in the table below.
These metadata attributes must be included; optionally, additional metadata attributes and values can be specified.
|
Attribute ID |
Attribute Name |
Attribute Value |
|---|---|---|
|
0 |
Target URI |
eml://witsml20/RigUtilization(f781dea4-0255-43d4-a3df-b0be17c25ca8) |
|
1 |
Severity |
5 |
Example ChannelData message or an alarm:
// [e5245366-2d61-4769-89a1-e36475439f28] Message received at 2017-04-14 17:15:02.1977{
"protocol":1,
"messageType":3,
"correlationId":0,
"messageId":4,
"messageFlags":1}{
"data": [ {
"indexes": [1492208102193729 ],
"channelId": 1,
"value": {
"item": "BOP pressure dropped" },
"valueAttributes": [ {
"attributeId": 0,
"attributeValue": {
"item": "eml://witsml20/RigUtilization(f781dea4-0255-43d4-a3df-b0be17c25ca8)" } }, {
"attributeId": 1,
"attributeValue": {
"item": 5.0 } } ] } ]}