Siemens SIMATIC NET User Manual

Description of the device
2.2 Device view of an OLM
Optical link module
10 Operating Instructions, 01/2020, C79000-G8976-C270-06
2.2 Device view of an OLM
The following figure shows a PROFIBUS OLM with all interfaces, display elements and
setting options.
①
LED display
②
Channel 1/0 (RS-485)
③
Channel 2 (optical)
• Transmitter (left)
• Receiver (right)
④
Channel 3 (optical)
• Transmitter (left)
• Receiver (right)
⑤
DIL switch for setting the modes
⑥
Operating voltage L1+/M/L2+
Signaling contact F1/F2
⑦
Sockets for measuring the levels of the optical interfaces
Figure 2-1 View from the front, side and top

Siemens SIMATIC NET Specifications

General

Category	Industrial Communication Software
Manufacturer	Siemens
Operating Systems	Windows, Linux
Protocols Supported	PROFIBUS, PROFINET, OPC UA
Compatibility	Siemens PLCs, Third-party devices with supported protocols