Create an Analog Voltage Input Tester for a PLC

We will create a simple and inexpensive analog voltage tester for a PLC using a potentiometer and a 9VDC battery. The potentiometer will be 5K ohms. This should be enough impedance for most analog inputs of the programmable logic controller. (PLC) Voltage impedance for analog voltage inputs is in the megaohm range where the current input is typically 250 ohms. Our tester will be for analog voltage inputs (0-10 VDC). Check your input specifications before wiring anything to your PLC. I have used this tester for other voltage inputs along with a meter to ensure that the voltage levels do not get out of range for the input signal. Analog inputs to the PLC are continuous and can come in a variety of signals. These signals can come from temperature, flow rate, pressure, distance, etc. More information can be obtained at our website. This includes all of the links mentioned in this video. https://accautomation.ca/create-an-analog-voltage-input-tester-for-a-plc/ See this tester in action on a Click PLC https://youtu.be/JwSeulaHV6U See this tester in action on an Omron CP1H PLC https://youtu.be/RQjF_p9ZXyA ACC Automation https://accautomation.ca/