Mitsubishi Electric MELSEC-L02SCPU User Manual page 56

(4) On/off status of input signals
(a) On/off status of input signals
On/off status of input signals is determined according to external wiring.
Signal name
High-speed input
IN0 to IN5
Standard input
IN6 to INF
In the context of the LCPU's positioning function, the status shown above are defined as representing the
"negative logic".
(b) Internal circuit
With the LCPU, the "input signal OFF" status is defined as the off status of the corresponding internal circuit
(photocoupler).
• Voltage not applied: Photocoupler OFF
• Voltage applied: Photocoupler ON
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External wiring
(Photocoupler OFF)
24VDC
(Photocoupler ON)
24VDC
(Photocoupler OFF)
24VDC
(Photocoupler ON)
24VDC
Signal on/off status as viewed from LCPU
INn - 24V
INn - COM
(n = 0 to 5)
INn - 24V
INn - COM
(n = 0 to 5)
INn
IN - COM
(n = 6 to F)
INn
IN - COM
(n = 6 to F)
OFF
ON
OFF
ON