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How can I safely test the functionality of an input?

PT100, 3-wire
For testing, link terminals 10 and 11 of input 1, and connect a fixed resistor or resistance decade between 9 and 10.

Value of resistor /
resistance decade setting
Display value
18.52 ohms -200 °C
100 ohms 0 °C
109.73 ohms 25 °C
390.481 ohms 850 °C

Thermocouple
For testing, link terminals 10 and 11 of input 1.
If the input is working correctly, the controller will indicate the ambient temperature.

Current/voltage input
For testing, configure input 1 to 0-20mA or 0-10V.
If the input is open-circuit, the display will indicate the lower scaling value (start of display range).
If a 20 mA or 10 V source is connected, then the upper scaling value (end of display range) will be indicated. As standard, this corresponds to 0-100 %.