Why Go
- Case Studies
  
  Common problems companies solve with Go
- Use Cases
  
  Stories about how and why companies use Go
- Security
  
  How Go can help keep you secure by default
Learn
Docs
- Effective Go
  
  Tips for writing clear, performant, and idiomatic Go code
- Go User Manual
  
  A complete introduction to building software with Go
- Standard library
  
  Reference documentation for Go's standard library
- Release Notes
  
  Learn what's new in each Go release
- API
  
  Reference documentation for the pkg.go.dev API
Packages
Community
- Recorded Talks
  
  Videos from prior events
- Meetups
  
  Meet other local Go developers
- Conferences
  
  Learn and network with Go developers from around the world
- Go blog
  
  The Go project's official blog.
- Go project
  
  Get help and stay informed from Go
- Get connected

opc

package module

Go to main page

Versions in this module

v0

v0.1.9

Dec 17, 2024

Changes in this version

type Item

+ Err interface{}

+ Tag string

v0.1.8

Dec 17, 2024

v0.1.7

Dec 17, 2024

v0.1.6

Dec 17, 2024

v0.1.5

Dec 17, 2024

v0.1.4

Dec 17, 2024

v0.1.3

Dec 17, 2024

v0.1.2

Dec 17, 2024

Changes in this version

type Connection

+ IsConnected func() bool

v0.1.1

Dec 17, 2024

Changes in this version

+ const OPCCache

+ const OPCDevice

+ const OPCDisconnected

+ const OPCFailed

+ const OPCNoconfig

+ const OPCQualityBad

+ const OPCQualityGood

+ const OPCQualityGoodButForced

+ const OPCQualityMask

+ const OPCQualityUncertain

+ const OPCRunning

+ const OPCSuspended

+ const OPCTest

+ func CollectTags(tree *Tree) []string

+ func Debug()

+ func OleInit() — windows/amd64

+ func OleRelease() — windows/amd64

+ func PrettyPrint(tree *Tree)

+ func SetLogWriter(w io.Writer)

+ func StartMonitoring(port string)

+ type AutomationItems struct — windows/amd64

+ func NewAutomationItems(opcitems *ole.IDispatch) *AutomationItems

+ func (ai *AutomationItems) Add(tags ...string) error

+ func (ai *AutomationItems) Close()

+ func (ai *AutomationItems) Remove(tag string)

+ type AutomationObject struct — windows/amd64

+ func NewAutomationObject(wrappers []string) (*AutomationObject, error)

+ func (ao *AutomationObject) Close() error

+ func (ao *AutomationObject) Connect(server string, node string) (*AutomationItems, error)

+ func (ao *AutomationObject) CreateBrowser() (*Tree, error)

+ func (ao *AutomationObject) GetOPCServers(node string) ([]string, error)

+ func (ao *AutomationObject) IsConnected() (bool, error)

+ func (ao *AutomationObject) TryConnect(server string, nodes []string) (*AutomationItems, error)

+ type Collector interface

+ Get func(string) (interface{}, bool)

+ Sync func(Connection, time.Duration) io.Closer

+ func NewDataModel() Collector

+ type Connection interface

+ Add func(...string) error

+ Close func()

+ Read func() map[string]Item

+ ReadItem func(string) Item

+ Remove func(string)

+ Tags func() []string

+ Write func(string, interface{}) error

+ func NewConnection(server string, nodes []string, tags []string) (Connection, error)

+ type Item struct

+ Quality int16

+ Timestamp time.Time

+ Value interface{}

+ func (i *Item) Good() bool

+ type Leaf struct

+ Name string

+ Tag string

+ type Tree struct

+ Branches []*Tree

+ Leaves []Leaf

+ Name string

+ Parent *Tree

+ func CreateBrowser(server string, nodes []string) (*Tree, error)

+ func ExtractBranchByName(tree *Tree, name string) *Tree