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User_leds_Codesys3S_runtime.md

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User leds (Codesys 3S runtime)

General

It's possible to control the U leds on a WAGO PFC controller. The example below illustrates how.

Prerequisites

the following libaries should be present:

  • CmpPfcx00

Implementation

The project has a working implementation that controls the U1 led, displaying it green when there is a working connection with the MQTT broker, flashing red if not.

  • controlling the led depending on connection with the MQTT broker
IF MQTTClient.connected THEN
     PFC.SetLed(which:=PFC.LED.U1, how:=PFC.LedState.STATIC_GRN);
ELSE
     PFC.SetLed(which:=PFC.LED.U1, how:=PFC.LedState.BLINK_RED);
END_IF

The code has been commented out to prevent interference with users that work with the é!COCKPIT runtime.