Description
Node.js package to access OPC Da 2.0 for reading and writing,Both X86/X64 supported, implementing the OPC DA specification version 2.05A. Welcome your PLC JavaScript overlords. Better yet, program them!
Known Issues
- the x64 version has some address corruption problem when you are using VS2012 or later, you can open "Project Property -> Linker -> CommandLine", then add
/HIGHENTROPYVA:NO to avoid this issue, See Issue#1 for more detail
Usage
Detail & ChangeLog
- Date:2017-01-16
- Date:2016-12-13
- Thanks for Tom Loya's contribution, now the project can work in a multi-threaded environment. You should call
COPCClient::init() and COPCClient::stop() in every thread.
- Date:2016-07-01
- this std branch tries to move every ATL to STL.
- the static .lib now works for MFC too.
- Date:2016-05-31
- Modified from X86 Version OPC Client 0.4a by beharrell
- Add some Hint info
- X64 Version uses includes files form
OPC Core Component 3.0.106.
- Install
OPC Core Component is NECESSARY, I bundled the 3.0.105.1 version (seems more popular).
- Tested with MatrikonOPC Simulation Server
- You can get it free at offical site after reg.
- Start OPC Simulation Server, then build project. Run the demo, input
hostname, then input server ID, it should work.
- I advice you to use
hostname instead of IP address for reasons below.
- If you want to access OPC by IP, you have to enable RemoteRegistry service in
services.msc
- Also , for UAC problem after Vista, your program must run as admin to avoid some issue.