This demo was created to give you a quick introduction on how to implement most common use cases with the UMH stack. If you have questions on how to adapt the provided templates to your specific application, feel free to join our Discord channel: https://discord.gg/DvEk5mK8

Preparation

• Setup an UMH instance on management.umh.app

• Grant the Grafana pod writing rights to the database to enable manual changes of the machine states

  • Access the terminal of your VM and use the following commands

  sudo $(which kubectl) exec -it $(sudo $(which kubectl) get pods --kubeconfig /etc/rancher/k3s/k3s.yaml -n united-manufacturing-hub -l app.kubernetes.io/component=timescaledb -o jsonpath="{.items[0].metadata.name}") --kubeconfig /etc/rancher/k3s/k3s.yaml -n united-manufacturing-hub -- psql -U postgres
  

  \\c umh_v2
  

  GRANT UPDATE ON state TO grafanareader;
  GRANT INSERT ON tag_string TO grafanareader;
  

Setting up the demo

Add the machine and power simulator in NodeRed

• Access NodeRed over <YOUR-IP>:1880/nodered or directly over the “Applications” tab in the Management Console

• Import the JSON code in NodeRed

  

• JSON code toggle

Configure and deploy the dataflow

• Add a new connection to the local MQTT Broker in the Management Console

  

• Add a dataflow and select MQTT as a template

  

• Exchange the template topics in the “Input (YAML)” field with the following ones. Do not change the “urls” and “client_id” as these are autogenerated.

    topics:
      - umh/raw/cologne/ehrenfeld/unicron/work_order_create
      - umh/raw/cologne/ehrenfeld/unicron/work_order_start
      - umh/raw/cologne/ehrenfeld/unicron/work_order_stop
      - umh/raw/cologne/ehrenfeld/unicron/product_type_create
      - umh/raw/cologne/ehrenfeld/unicron/state
      - umh/raw/cologne/ehrenfeld/unicron/count
      - umh/raw/cologne/ehrenfeld/unicron/bad_count
      - umh/raw/cologne/ehrenfeld/unicron/power
      - umh/raw/cologne/ehrenfeld/unicorn/oven/power
      - umh/raw/cologne/ehrenfeld/unicorn/oven/state
      - umh/raw/cologne/ehrenfeld/unicron/conveyor/power
      - umh/raw/cologne/ehrenfeld/unicron/conveyor/state