Ignition Gateway Network Data Optimization

Ignition
1

Hi all,

I have two Ignition sites connect to one another over Wireguard VPN tunnel.

These two sites both have LTE sim cards with a current 10GB data cap

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This is the usage after 3 days,

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I created a another tag provider which just contains reference tags of the data I want to transmit, it currently has a total of 92 tags (52 Boolean ,40 Float and Integer ).

In the service security I have denied access to all the other servers and only allowed assess to the Remote Tag Provider.

Is there anything else I can do to reduce the data usage?

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I know mqtt would have been a better option in terms of data usage here but this is what I currently have setup.

1 Like
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Out of curiosity, have you tested with NO tags being shared, just to see what the baseline data transfer amount is?

3

Unfortunately I have not :neutral_face:

4

I don't have any measurements of my own to back this up, but I am pretty sure GAN is the least efficient in terms of bandwidth of the 3 obvious options (GAN, OPC UA, MQTT+Sparkplug).

Configured correctly OPC UA can be a closer match to MQTT+Sparkplug than many would think. If bandwidth is top concern I think MQTT will still win, but you need a broker and/or the MQTT modules.

5

Okay I will try the OPC UA option

6

You should also probably figure out a reasonable approach to measuring these, e.g. establish a baseline like suggested, same number of tags, stable-ish number of tag changes happening, etc...

2 Likes
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I'd probably start with that type of testing. Figure out what your barebones overhead is- What's just the wireguard connection going to cost you, without even having the gateway network. Then what's the gateway network add. Then what do the tags add. If 1 or 2 burn all your data, then it doesn't matter much if you optimize the tags...

3 Likes