Siemens SIMATIC NET PROFIBUS manual Infrared Link Module ILM, Uses

Active Components for Wireless Networks

9.1Infrared Link Module ILM

Uses

The Infrared Link Module ILM is used for wireless PROFIBUS transmission over short distances (≤ 15m ). With the ILM, individual nodes can be attached to a segment or two segments can be interconnected. The ILM allows communication between moving nodes, for example automatic trolleys or with changing nodes, for example stations along conveyor belts or production lines.

The ILM can be used in the installation of communication systems and in temporary configurations, for example for test purposes.

The ILM can be used to replace systems subject to wear and tear, for example slip rings etc.

At a distance of 11 m, an ILM illuminates a circular area with a diameter of 4 m.

Design

SRobust aluminum die-cast casing with degree of protection IP 65

S2 x 2-pin terminal block in the casing (with cable connection through heavy-duty threaded conduit) for attachment to PROFIBUS segment

S4-pin terminal block in the casing (with cable connection through heavy-duty threaded conduit) for connection of the power supply (24 V DC) and signaling contact

SPermanent wiring; in other words, fast and simple replacement of the electronics if a fault occurs

SStatus displays of the operating states via LEDs

STransmission rate set with switch inside casing

SProtected from interfering ambient light by integrated daylight filter

SEasy alignment due to area of radiated cone (± 10 ° solid angle).

9-2	PROFIBUS Networks SIMATIC NET
	6GK1970-5CA20-0AA1 Release 2 05/2000