Trigger script Tag value change

Ignition
1

Hello,

I have script to generate xml file:

from xml.etree.ElementTree import ElementTree
from xml.etree.ElementTree import Element
import xml.etree.ElementTree as etree
import xml.etree.cElementTree as ET

value1 = system.tag.read(“Torque/Torque_IP033/LTR_TIMESTAMP”).value
value2 = system.tag.read(“Torque/Torque_IP033/LTR_TORQUE_STATUS”).value
value3 = system.tag.read(“Torque/Torque_IP033/LTR_TORQUE_VALUE”).value
root = ET.Element(“root”)
doc = ET.SubElement(root, “doc”)

ET.SubElement(doc, “Date”, name=“Today”).text = str(value1)
ET.SubElement(doc, “Torque”, name=“Status”).text = str(value2)
ET.SubElement(doc, “Torque”, name=“Status”).text = str(value3)

tree = ET.ElementTree(root)
tree.write(“C:\CSV\person4.xml”)

I would like to run this script every time the time stamp value change. I can run it on the button trigger but I would like this to be triggered always when tag value change regardless if client is opened or not.

Regads
Pawel

2

You can use Tag Event scripts for this. These run on the gateway, so will run whether the client is opened or not, but they can only write to a gateway accessible path.
https://www.inductiveuniversity.com/videos/tag-scripts/7.9

3

Thanks accyroy.

Totally forgot Ignition Gateway is in different server, so my script did not work because Gateway has no access in to location I did pointed.

Thanks a lot again.
Regards
Pawel