MASSO
MASSO Documentation
Identifying Optocouplers
Testing procedure for Inputs 1 - 32
Remove any wire connected to the input you want to test
Go to the F1 screen and observe the logic state of the suspected input. It will show either HIGH or
LOW depending on whether the input is inverted or not.
Test the optocoupler by connecting the +ve of the MASSO power supply through a 5.6K resistor to
the input you want to test.
v5.18 - 08 Apr,2021
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