Revision as of 08:22, 18 February 2019

Introduction

WebAccess is a web browser based software for Human Machine Interface (HMI) and Supervisory Control and Data Acquisition. The software acquires, displays and stores real-time data and allows operators to change setpoints, equipment status and other parameters in Programmable Logic Controllers (PLCs), Controllers, IO, RTUs, DCS and DDC systems.

SCADA is a component in WebAccess system. It's communicates with automation devices and the Clients.

WA SCADA Service

How to

Installation

1. Install Update for Universal C Runtime in Windows (KB2999226) (needed for OS other than Win 10).

• Install for x64 OS: https://www.microsoft.com/en-us/download/details.aspx?id=49093
• Install for x86 OS: https://www.microsoft.com/en-US/download/details.aspx?id=49077

2. Install Microsoft Visual C++ 2015 Redistributable Package (32bit).

 Download link: https://www.microsoft.com/en-US/download/details.aspx?id=48145

3. Install MQTTBroker

 Download link: MQTTBrokerSetup  

4. Double click Agent_WASCADAHandler_X.X.X.exe to install.

5. Follow step wizard to install WASCADA Service.

Configuration

After the installation is completed, please follow below step to config WASCADA plugin:

1. Open and edit WASCADAHandler.ini from plugin's installed folder, for example: C:\Program Files (x86)\Advantech\Agent_WASCADAHandler\

    Set WebAccess IP, User name and Password encoded in base64 and others.

[Setting]
Server=127.0.0.1					; the IP address of WebAccess
Authorization=Basic YWRtaW46				; The 'username:password' of WebAccess encoded 
							; in base64, and add 'Basic' at the front. E.g. if your
							; username is "admin" and password is "", the word
							; after encoding is 'YWRtaW46'; then adding 'Basic'
							; at the front, become 'Basic YWRtaW46'.

RetrieveInterval_ms=10000				; The interval of time (ms) of acquiring data, minimum value is 1000ms.
							; This value is depended on how many tags you like to acquire.
							; Generally, increase 300ms for one tag, increase 3000ms for 10 tags... and so on!

RetrieveSpecificTags=0					; 0: Acquire data of all tags in WebAccess
							; 1: Acquire data of selected tags in WebAccess.
							;    Set the selected tags in [Tags] down below.
							;    Settings in [Tags] are only effective when 
                                                        ;    this variable is set to 1.

[Tags]
numberOfTags=2						; The total number of tags, maximum value is 200;
Tag0=Project1,tag1					; Tags definition, Tagn = project name, tag name.
Tag1=Project1,tag2

2. Restart "Agent_WASCADAHandler" Service from Windows Task Manager.

3.On the RMM cloud, check if WASCADAHandler tab is appearing.

Config WebAcess can refer WebAccess Training - Step By Step

JSON Data Format

{
  "infoSpec": {
    "WASCADAHandler": {
      "Plugin": {
        "bn": "Plugin",
        "e": [{"n": "Version","sv": "1.0.1","asm": "r"},
              {"n": "Description","sv": "This service is WebAccess SCADA Service","asm": "r"}]
      },
      "ProjectTest": {
        "bn": "ProjectTest",
        "ScadaNode01": {
          "1": {
            "bn": "1",
            "DeviceTest01": {
              "bn": "DeviceTest01",
              "e": [{"n": "AO_40001","v": -1,"asm": "rw","q": 1}]
            }
          },
          "bn": "ScadaNode01"
        }
      },
      "opTS": {
        "$date": 1542794074033
      },
      "dataFlow": "general/WASCADAHandler",
      "seq": "2_1542794074033",
      "srcTs": 1542794074033
    }
  }
}

WASCADA Hand-shark protocol

Use Case

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Release

This is an overview that displays WebAccess/SCADA Service versions and some stats and numbers for each release.