Led Display - Di Module - Siemens SCALANCE X-400 Operating Instructions Manual

6.8.4

LED Display - DI Module

LED Display of the Digital Inputs 1 through 8
The status of four digital inputs (IN1 through IN4 or IN5 through IN8) can be indi-
cated by the four LEDs on the front panel of the DI module.
Figure 6-27
Four modes (display mode A through D) are available and these are displayed by
two LEDs (DM1, DM2) on the Switch CPU. The display modes A and C are identi-
cal as are modes B and D.
Mode
DMode A
DMode C
Mode
DMode B
DMode D
Operating Instructions for SCALANCE X-400 Industrial Ethernet Switches
C79000-G8976-C186-03
LEDs of the digital inputs and display modes
DM1 DM2 IN1/5 IN2/6 IN3/7 IN4/8 Meaning
off off
on
on
DM1 DM2 IN1/5 IN2/6 IN3/7 IN4/8 Meaning
on off
on
on
Installation and Commissioning
Digital inputs
IN1 through IN4
Signal at input IN1
Signal at input IN2
on Signal at input IN3
on Signal at input IN4
Digital inputs
IN5 through IN8
Signal at input IN5
Signal at input IN6
on Signal at input IN7
on Signal at input IN8
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