<?xml version='1.0' encoding='utf-8'?>

<PyFile xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:xsd="http://www.w3.org/2001/XMLSchema">

<variables/>

<globals>

<xhtml:p><![CDATA[

import sys

last_payload = None

def topic_callback(topic, payload):

global last_payload

last_payload = payload

# called from PLC

def publish_example(data):

global last_payload

MQTT_publish("mqtt_0", "py_test", data)

return last_payload

]]></xhtml:p>

</globals>

<init>

<xhtml:p><![CDATA[

]]></xhtml:p>

</init>

<cleanup>

<xhtml:p><![CDATA[

]]></xhtml:p>

</cleanup>

<start>

<xhtml:p><![CDATA[

MQTT_subscribe("mqtt_0", "py_test", topic_callback)

]]></xhtml:p>

</start>

<stop>

<xhtml:p><![CDATA[

]]></xhtml:p>

</stop>

</PyFile>