Created
March 23, 2018 13:11
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| const endpointUrl = "opc.tcp://192.168.249.31:4840"; | |
| const opcua = require("node-opcua"); | |
| const StatusCodes = opcua.StatusCodes; | |
| const AttributeIds = opcua.AttributeIds; | |
| const DataTypes = opcua.DataType; | |
| let client; | |
| let session; | |
| async function CreateConnection(){ | |
| const OPCUAClient = opcua.OPCUAClient; | |
| console.log('Trying to connect ...'); | |
| client = new OPCUAClient({}); | |
| await client.connect(endpointUrl); | |
| console.log('Connected!'); | |
| session = await client.createSession({userName: "Davide", password: "davide"}); | |
| let val = await session.read({nodeId: "ns=4;s=opctest1_Copy1"}) | |
| console.log(val.value.value); | |
| let nodeToWrite = { | |
| nodeId: "ns=4;s=opctest1_Copy1", | |
| attributeIds: opcua.AttributeIds.Value, | |
| value: { | |
| value: { | |
| dataType: opcua.DataType.UInt16, | |
| value: 1098 | |
| } | |
| }, | |
| statusCode: opcua.StatusCodes.Good // <==== | |
| } | |
| let risultato = await session.write(nodeToWrite); | |
| console.log(risultato); | |
| val = await session.read({nodeId: "ns=4;s=opctest1_Copy1"}) | |
| console.log(val.value.value) | |
| await client.closeSession(session,true); | |
| await client.disconnect(); | |
| }; | |
| CreateConnection(); | |
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