YASKAWA MEMOCON GL120 User Manual page 45

2) The following diagram shows the circuit configuration.
Input 1
Input 2
Input 15
Input 16
Common 1
12/24 VDC
Input 17
Input 18
Input 31
Input 32
Common 2
12/24 VDC
Photocoupler
3-15
3.1 Digital Input Module specifications
Input signal
indicator
To CPU
3