Siemens X-400 LED Display of the Digital Inputs 1 through, IN1/IN5, IN2/IN6, Stby, IN3/IN7

Installation and Commissioning

6.8.4LED 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.

	F	IN1/IN5	RM	P1
	L1	IN2/IN6	STBY	P2
	L2	IN3/IN7	DM1
		IN4/IN8	DM2
		DI-LEDs
PowerModuleLEDs			CPU-LEDs	Port-LEDs

Figure 6-27 LEDs of the digital inputs and display modes

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	DM1	DM2	IN1/5	IN2/6	IN3/7	IN4/8	Meaning
DMode A	off	off					Digital inputs
DMode C							IN1 through IN4
			on				Signal at input IN1
				on			Signal at input IN2
					on		Signal at input IN3
						on	Signal at input IN4
Mode	DM1	DM2	IN1/5	IN2/6	IN3/7	IN4/8	Meaning
DMode B	on	off					Digital inputs
DMode D							IN5 through IN8
			on				Signal at input IN5
				on			Signal at input IN6
					on		Signal at input IN7
						on	Signal at input IN8

Operating Instructions for SCALANCE X-400 Industrial Ethernet Switches	111
C79000-G8976-C186-03