Siemens SIMATIC NET PROFIBUS manual ILM Profibus

Topologies of SIMATIC NET PROFIBUS Networks

Master S7-400

Slave

ET 200M

À

Slave

S7-300

ILM 2

À

2

Master

PG/PC/OP

2

Master OP 25

Infrared link 1

0.5 to 15 m

Infrared link 2

0.5 to 15 m

ILM

À

2

PROFIBUS

slave network segment 1

Slave

ET 200M

ILM

2

À

2

Slave
ET 200M
		Infrared
À	2	link 3
		0.5 to 15 m

PROFIBUS

slave network segment 2

ILM

Slave

S7- 300

2

À

Slave

ET 200S

		À
			2
À	Terminating resistor activated		PROFIBUS
2	LAN cable for PROFIBUS		slave network segment 3

À

Figure 2-10 Point-to-Multipoint Link Using PROFIBUS ILMs (One Master Subnet, Three Subnets with Slaves)

2-16	PROFIBUS Networks SIMATIC NET
	6GK1970-5CA20-0AA1 Release 2 05/2000