Latest revision as of 07:44, 24 January 2025

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, minimal value is 1000ms.
							; This value is depended on how many tags you like to acquire.
							; Generally, increase 100ms for one tag, increase 1000ms for 10 tags... and so on!

RetrieveSpecificTags=1					; 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.

PollingTagInterval_sec=10                               ; The time interval (in second) to polling Webaccess/SCADA server tag's path, minimal value: 1
PollingTagNotification=0                                ; Disable: 0, Enable: 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

Note: Arithmetic virtual tag is not support.

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.

Above files are available at local server, please paste file's url in File Explorer to copy file. (How to access to EOSSFS file server )