Digital Inputs; Figure 3-5 Block Diagram: Digital Inputs; Figure 3-6 Digital Inputs With Switch And Internal Power Supply On Terminal Dic - Siemens SENTRON PAC3100 Manual

Description
3.5 Digital inputs and outputs
3.5.1

Digital inputs

Function
Both digital inputs have the following function:
● Status monitoring: Capturing statuses of connected signal encoders
(1)
(2)
(3)
Figure 3-5
Wiring
Both digital inputs have an internal power supply. They can be operated optionally with or
without an external power supply.
Switch with internal power supply
Internal power supply on terminal DIC.
(1)
Figure 3-6
24
Internal power supply
Optional additional voltage power supply, max. 30 V, typically 24 V
Input electronics
Block diagram: Digital inputs
DIC DI1 DI0 DOC DO1 DO0
Functional ground terminal
Digital inputs with switch and internal power supply on terminal DIC
SENTRON PAC3100
Manual, 07/2009, A5E02385159B-01