LC700 – User’s Guide
3.48
DIMENSIONS AND WEIGHT
Dimensions (W x D x H) 39.9 x 137.0 x 141.5 mm; (1.57 x 5.39 x 5.57 in)
Weight 0.450 kg
TEMPERATURE
Operation 0 ºC to 60 ºC
Storage -30 ºC to 70 ºC
Discrete Input Types
Hysteresis
The on and off states have different trigger levels, in between it remains at the last state.
To avoid fast switching between states 0 and 1, when an input has noise level close to the transition
levels, these inputs will support Hysteresis.
Off
On
Nominal
Maximum
State 1
State 0
“Last State”
Figure 3.23 –I/O Input Module Hysteresis
When the signal level exceeds the On-level the state turns true and remains true even when the
signal level goes below the On-level (as long as it remains above the Off-level). Only when the
signal level goes below the Off-level the state becomes false, and then remains false even when the
signal goes above the Off-level (as long as it does not exceed the On-level).
The LC700 discrete input modules have triggered levels in accordance with the IEC 61131-2
standard for Programmable Controller hardware.
Wiring
NPN and PNP sensors
PNP NPN
Active high
Source
Use M-001, M-002, M-003, M-004
Active low
Sink
Use M-005
Figure 3.24
– Sensor Types
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