async def write(self, params):
self.logger.debug("write")
request = ua.WriteRequest()
request.Parameters = params
data = await self.protocol.send_request(request)
response = struct_from_binary(ua.WriteResponse, data)
self.logger.debug(response)
response.ResponseHeader.ServiceResult.check()
return response.Results
async def set_attributes(self, nodeids, datavalues, attributeid=ua.AttributeIds.Value):
"""
Set an attribute of multiple nodes
datavalue is a ua.DataValue object
"""
self.logger.info("set_attributes of several nodes")
request = ua.WriteRequest()
for idx, nodeid in enumerate(nodeids):
attr = ua.WriteValue()
attr.NodeId = nodeid
attr.AttributeId = attributeid
attr.Value = datavalues[idx]
request.Parameters.NodesToWrite.append(attr)
data = await self.protocol.send_request(request)
response = struct_from_binary(ua.WriteResponse, data)
response.ResponseHeader.ServiceResult.check()
return response.Results
