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Remote PLC / HMI service — solution visualization

Application solution

Remote PLC / HMI service

Reach the machine before planning a site visit.

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At a glance

Check model roles
Field equipment
PLC / HMI network
Models to evaluate
YZW400 YZW350L YZW380
Target system
Engineer + vendor tool

The field challenge

The challenge on site

A stopped machine should not require a site visit just to establish what happened. Give the authorized engineer an IP route to the equipment, then validate the required diagnostic task with the actual PLC or HMI software.

Engineering reference design. Final equipment, functions and pilot checks are agreed for your site.

Read the complete application note

System architecture

From field equipment to your application

Follow the data path and see which role belongs to the gateway, controller and customer application.

Remote PLC / HMI service — reference topology; select to enlarge.Enlarge diagram +
Remote PLC / HMI service — reference topology; select to enlarge.
  1. 01PLC / HMI network
  2. 02YZW400 / IP access
  3. 03Approved VPN or m2mCloud path
  4. 04Engineer + vendor tool

Integration approach

What the first pilot includes

  • Establish the agreed remote IP path over cellular or site Ethernet.
  • Validate controller diagnostics and read-only access with the actual vendor software.
  • Approve backups, downloads or debugging separately with a safe maintenance window.
PILOT CHECKS

What a working system should demonstrate

  • Reach the agreed device IP addresses and required service ports.
  • Complete the agreed task in the actual PLC/HMI software.
  • Remove access and verify that the engineer can no longer reach the site.
PROJECT INPUTS

What to share with our team

  • PLC/HMI models and engineering-software versions
  • Site and engineer subnets, return routes and discovery requirements
  • VPN endpoint or m2mCloud account, ownership and service scope
  • Authorized operations, maintenance window and local contact

Installation & power

Plan the physical connections.

The reference separates data paths from supply wiring. Confirm actual loads, protection and installation conditions.

Remote PLC / HMI service — reference power and installation diagram; select to enlarge.Enlarge diagram +
Remote PLC / HMI service — reference power and installation diagram; select to enlarge.

Products for this application

Candidates for project review. Confirm the actual interfaces, regional modem, power and software configuration.

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