Festo — EMCS-ST — 2021-03b
Fig. 9: Overview of electrical interfaces
Interface [Power]
Interface [Logic]
8.5.1
Connection [Logic]: digital inputs/outputs (DIO), logic power supply
The [Logic] connector is used to exchange digital input/output signals (PNP or NPN logic) with the
higher-level controller and to supply the logic part of the electronics with electrical power.
In NPN operation defined levels must be present at the digital inputs DI1 / DI2 of the EMCS, e.g. by
controller outputs with pull-up resistors.
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