Siemens SIMATIC NET PROFIBUS Instructions d'exploitation télécharger pdf (Page 20)

Network Topologies

3.3 Ring Topology

SIMATIC NET PROFIBUS Optical Link Module OLM V4.0

14 Operating Instructions, 01/2013, C79000-G8976-C270-03

 Configuration 1 (see Figure 3-4, FOC1 < FOC2) , LED display:

1. Situation, no FOC interruption:

OLM 1 OLM 2

SystemLED = lit green SystemLED = lit green

CH1/0 LED = lit yellow CH1/0 LED = lit yellow

CH2 LED = lit yellow CH2 LED = is not lit

CH3 LED = is not lit CH3 LED = lit yellow

2. Fault, FOC1 interrupted:

OLM 1 OLM 2

System

LED = lit green

SystemLED = lit green

CH1/0 LED = lit yellow CH1/0 LED = lit yellow

CH2 LED = lit red CH2 LED = lit yellow

CH3 LED = lit yellow CH3 LED = lit red

3. Fault, FOC2 interrupted:

OLM 1 OLM 2

System

LED = lit green

SystemLED = lit green

CH1/0 LED = lit yellow CH1/0 LED = lit yellow

CH2 LED = lit yellow CH2 LED = lit red

CH3 LED = lit red CH3 LED = lit yellow

 Configuration 2 (Figure 3-5, FOC1 < FOC2) , LED display:

1. Situation, no FOC interruption:

OLM 1 OLM 2

SystemLED = lit green SystemLED = lit green

CH1/0 LED = lit yellow CH1/0 LED = lit yellow

CH2 LED = lit yellow CH2 LED = lit yellow

CH3 LED = is not lit CH3 LED = is not lit

2. Fault, FOC1 interrupted:

OLM 1 OLM 2

SystemLED = lit green SystemLED = lit green

CH1/0 LED = lit yellow CH1/0 LED = lit yellow

CH2 LED = lit red CH2 LED = lit red

CH3 LED = lit yellow CH3 LED = lit yellow

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Siemens SIMATIC NET PROFIBUS Instructions d'exploitation Page 20