Workshop Exercise 6.2 - Adding an Inventory for CIP Devices
Table of Contents
Objective
In this exercise, we’ll create a playbook to control a motor by changing the value of tags within a PLC’s program over CIP.
Step 1 - Creating a Playbook to Control a Motor
The community.cip collection provides modules in a similar way as other Ansible collections. Here, they control tags within the program of a PLC.
The community.cip.ensure_tags module will allow us to reference tags and assign them a value. These values can be numbers, floats, or bools, depending on the tag.
Create a new file in your code repository at playbooks/run-motor.yml and paste in the following contents:
---
- name: Control motor via PLC tags
hosts:
- all
gather_facts: no
tasks:
- name: Set motor start tag to true, stop tag to false, start slow
community.cip.ensure_tags:
tags:
- name: "Start"
value: True
- name: "Stop"
value: False
- name: "MotorSetPoint"
value: 100
- name: "isForward"
value: True
- name: Pause for dramatic effect
ansible.builtin.pause:
seconds: 10
- name: Speed up
community.cip.ensure_tags:
tags:
- name: "MotorSetPoint"
value: 5000
- name: Pause for dramatic effect
ansible.builtin.pause:
seconds: 10
- name: Lets go the other way
community.cip.ensure_tags:
tags:
- name: "isForward"
value: False
- name: Pause for dramatic effect
ansible.builtin.pause:
seconds: 10
- name: Max it out
community.cip.ensure_tags:
tags:
- name: "MotorSetPoint"
value: 6000
- name: More dramatic effect
ansible.builtin.pause:
seconds: 10
- name: Lets go the other way again
community.cip.ensure_tags:
tags:
- name: "isForward"
value: True
- name: More dramatic effect
ansible.builtin.pause:
seconds: 10
- name: Shut everything off
community.cip.ensure_tags:
tags:
- name: "Start"
value: False
- name: "Stop"
value: True
When finished, remember to push your changes to your code repository.
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