CODEWITHSUNDEEP
mqttignitionscada-ignition
magni_mar
magni_mar

Reputation: 21

How to write values in Ignition SCADA using MQTT Engine

I am setting up an application which publishes values to Ignition SCADA through MQTT using the SparkPlugB specification.

However, now I want to go in the other direction. I want Ignition to be able to change values and my application can read those changes.

The problem arises when I try to actually write to values in Ignition, sometimes nothing happens and sometimes it says that I cannot write these values.

What configuration / SparkPlugB specification needs to be set in order for Ignition to be able to write these values?

I have tried reading the SparkPlugB spec but so far found nothing that aids me in my quest.

Upvotes: 0

Views: 399

Answers (1)

Thiago Mata
Thiago Mata

Reputation: 2959

Based on the answer from @magni_mar looks like the method described in https://docs.chariot.io/display/CLD80/Enable+Device+Writes+from+Ignition could fix the issue.

  1. Start by browsing to your Ignition Gateway's web UI and select 'Configure'. The default URL is: http://127.0.0.1:8088
  2. The default username / password is setup by the user during installation . Once in the Configuration menu select 'MQTT ENGINE -> Settings' on the left navigation bar (towards the bottom).
  3. Once there, you'll see the following under the 'General' tab. There are two options: "Block Node Commands" and "Block Device Commands". Make sure they are both disabled (not checked) and click 'Save Changes'

Upvotes: 0

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