Heater control

3 posts in this topic

Hi wizards i need some help please i've got a micrologix 1100 with a thermocouple expansion module on, I'm struggling to write a PID control to control a 24vDC output i can get the I:2.0 thermocouple input to control a analogue output but i dont want this . ive written a few rungs that will control a 24vDC output with on/off control using less than greater than functions but the control is not tight enough. iv seen this video (link Below) which would be perfect. im trying to control water tank temp any help on this would be greatly received guys

Edited by GL3NN

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