Siemens SIMATIC NET PROFIBUS Provozní pokyny stáhnout pdf (Strana 183)

100

101

Active Components for RS-485 Networks

5-17

PROFIBUS Networks SIMATIC NET

6GK1970-5CA20-0AA1 Release 2 05/2000

Connecting the PROFIBUS Cable

Connect the PROFIBUS LAN cable to the PROFIBUS terminator, as follows:

1. Cut the PROFIBUS cable to the required length.

2. Strip the insulation from the PROFIBUS cable as shown in Figure 5-10.

The braid shield must be folded back on to the cable. Only then can the shield

clamp serve as strain relief and as the shield contact.

8,5 16 10

8,5

16 1016

Braid shield must be folded back!

e.g. standard cable

6XV1 830-0EH10

e.g. underground cable

6XV1 830-3FH10

Figure 5-10 Stripping the Insulation to Connect to the PROFIBUS Terminator

3. Connect the PROFIBUS LAN cable to the PROFIBUS terminator:

Connect the same wires (green/red for the PROFIBUS LAN cable) to the same

terminal A or B (in other words always connect terminal A with a green wire and

terminal B with a red wire or vice versa).

4. Tighten the shield clamps so that the shield makes good contact with the clamp.

Note

When installing the segment, make sure that no terminating resistor is activated

on the bus connectors if the two PROFIBUS terminators are included in the

PROFIBUS segment.

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