Siemens SIMATIC NET PROFIBUS manual Status Displays for Incorrect Operation

6ZB5530–3AC30–0BA1 Infrared Link Modul (ILM)

10 Help With Problems During Operation

10.1Status Displays for Incorrect Operation

LED Display			Possible Causes	Signaling
				Contact
POWER LED	not lit	-	Power supply failed or turned off	Always si-
		-	Module defective	gnals
		- Ribbon band cable not plugged in when assem-
			bling the module
POWER LED	lit green	-	Interruption on one or more cores of the RS 485
			LAN cable
TX LED	not lit	- Reversed connection of core A and B of the RS
RX LED	not lit		485 LAN cable
		- Connected PROFIBUS master defective (not sen-
			ding)
		- PROFIBUS node is not attached or attached
			PROFIBUS node is not turned on
		- No partner station detected with attached PROFI-
			BUS master
POWER LED	lit green	-	Interruption on one or more cores of the RS 485
			LAN cable
TX LED	not lit	- Reversed connection of core A and B of the RS
RX LED	lit yellow		485 LAN cable
		- Attached PROFIBUS slave defective (not sen-
			ding)
		- PROFIBUS slave is not attached or attached
			PROFIBUS slave is not turned on
		- PROFIBUS slave node not correctly addressed
			and therefore not responding
POWER LED	lit green	-	No acknowledgment pulse received, partner sta-	Signals when
			tion not responding	configured
TX LED	lit orange,			(acknowledg-
				ment pulse)
RX LED	not lit

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