Siemens SIMATIC NET PROFIBUS User Manual
Infrared Link Modul (ILM)
6ZB5530–3AC30–0BA1
3
Copyright
by Siemens
1
The Product
6
2
Symbols
7
3
Introduction
8
4
Description of the Device
9
5
Description of the Functions
11
5.1
Transmission Rate
11
5.2
Topologies
11
5.2.1
Point–to–Point–Link
12
5.2.2
Point–to–Multipoint Link
17
5.3
Signal Regeneration
19
5.4
Monitoring the Received Optical Level
19
5.5
Constant Light Monitoring
19
5.6
Monitoring the Optical Link
20
5.6.1
Monitoring the Optical Receive Activity
20
5.6.2
Monitoring the Optical Link with an Acknowledgment Pulse
20
6
Modes and Settings
22
6.1
Setting the Terminating Resistor
23
6.2
Setting the Transmission Rate
24
6.3
Operation With Acknowledgment Pulse
25
6.4
Operation with Signaling Contact
26
7
Installation and Startup
28
7.1
Notes on Safety
28
7.2
General Notes on Installation and Startup
29
8
Installing the PROFIBUS ILM
31
8.1
Connecting the Electrical RS 485 Bus Cables
37
8.2
Connecting the Power Supply and the
Signaling Contact
Signaling Contact
39
9
Displays
41