Siemens SIMATIC NET User Manual

Planning/configuring
7.2 Configuration
Optical link module
Operating Instructions, 01/2020, C79000-G8976-C270-06
67
The slot time calculation takes into account only the optical network and the attachment of
nodes to the OLM in each case via a maximum 20 m long RS485 bus segment. Longer RS-
485 bus segments must be included by adding them to the Length
FOC
.
Note
If the slot time is configured with a value that is too low, this can lead to malfunctions and
error displays on the OLM. The system LED flashes red/green.

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