Siemens SIMATIC NET PROFIBUS manual Passive Components for RS-485 Networks

Contents

3.3 Transmission Delay Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

3.3.1Configuring Optical Buses and

Star Topologies with OLMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23

3.3.2 Configuring Redundant Optical Rings with OLMs . . . . . . . . . . . . . . . . . . . . 3-27

3.3.3 Example of Configuring the Bus Parameters in STEP 7 . . . . . . . . . . . . . . . 3-31

4	Passive Components for RS-485 Networks		4-1
	4.1	SIMATIC NET PROFIBUS Cables	4-2
	4.1.1	FC Standard Cable	4-7
	4.1.2	FC-FRNC Cable (LAN cable with halogen-free outer sheath)	4-8
	4.1.3	FC Food Cable	4-9
	4.1.4	FC Robust Cable	4-10
	4.1.5	PROFIBUS Flexible Cable	4-11
	4.1.6	FC Underground Cable	4-13
	4.1.7	FC Trailing Cable	4-14
	4.1.8	PROFIBUS Festoon Cable	4-18
	4.1.9	SIENOPYR-FR Marine Cable	4-22
	4.2	FastConnect Bus Connector	4-24
	4.2.1	The FastConnect System	4-24

4.2.2Area of Application and Technical Specifications of the FastConnect Bus

Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25

4.2.3 Using the FastConnect Stripping Tool for Preparing FC Cables . . . . . . . . 4-30

4.3 Bus Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32

4.3.1 Area of Application and Technical Specifications of the Bus Connector . . 4-33

4.4 Attaching the LAN Cable to the Bus Connector . . . . . . . . . . . . . . . . . . . . . . 4-37

4.4.1 Attaching the LAN Cable to Bus Connector (6ES7 972-0B.11..) . . . . . . . . 4-37

4.4.2Connecting the LAN Cable to Bus Connector (6ES7 972-0BA30-0XA0) . 4-40

4.4.3 Connecting the LAN Cable to Bus Connector (6ES7 972-0B.40) . . . . . . . 4-42

4.5 Installing the Bus Connector with Axial Cable Outlet . . . . . . . . . . . . . . . . . . 4-44

4.6 Plugging the Bus Connector into the Module . . . . . . . . . . . . . . . . . . . . . . . . 4-46

4.7 Bus Terminals for RS-485 Networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-48

4.7.1 Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-48

4.7.2 Design and Functions of the RS-485 Bus Terminal . . . . . . . . . . . . . . . . . . . 4-49

4.7.3 Design and Functions of the 12M Bus Terminal . . . . . . . . . . . . . . . . . . . . . . 4-52

4.7.4 Mounting/Attaching the LAN Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-55

4.7.5 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-58

4.7.6 Technical Data of the RS-485 Bus Terminal . . . . . . . . . . . . . . . . . . . . . . . . . 4-60

4.7.7 Technical Data of the 12M Bus Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-61

4.8 Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-63

4.8.1 Cable Connections to Network Components . . . . . . . . . . . . . . . . . . . . . . . . 4-63

4.8.2 Cable Connection without Bus Connection Elements . . . . . . . . . . . . . . . . . 4-63

4.9 Preassembled Connecting Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-65

4.9.1 830-1T Connecting Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-65

4.9.2 830-2 Connecting Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-67

5	Active Components for RS-485 Networks		. . . . . . . . . . . . . . . . . . . 5-1
	5.1	RS-485 Repeater	. . . . . . . . . . . . . . . . . . . 5-2
	5.2	Possible Configurations with the RS-485 Repeater	. . . . . . . . . . . . . . . . . . . 5-6
iv			PROFIBUS Networks SIMATIC NET
		6GK1970-5CA20-0AA1 Release 2 05/2000