Siemens OSM Istruzioni per gli Interventi Pagina 35
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Network Topologies with OSM/ESM
Industrial Ethernet OSM/ESM
C79000-Z8976-C068-10
31
3.2 Redundant Ring Structure
With the aid of an OSM functioning as the redundancy manager (RM), both ends
of an optical bus made up of OSMs can be closed to form a redundant optical ring.
The OSMs are connected together using ports 7 and 8.
The RM monitors the OSM bus connected to it, closes the bus if it detects and
interruption and therefore reestablishes a functioning bus configuration. A
maximum of 50 OSMs are permitted in an optical ring. This allows reconfiguration
time of less than 0.3 s to be achieved. The RM mode is activated on the OSM
using a DIP switch (Section 4.2.4.1).
OSM in
RM mode
OSM ITP 62
OSM ITP 62
OSM TP 62
OSM TP 62
OSM ITP 62
OSM ITP 62
OSM ITP 62 OSM ITP 62
1
1 1 1 1
1
1 1 1
1
1 Fiber-optic cable (FOC)
OSM ITP 53
Figure 12: Redundant Ring Structure with OSMs
A redundant electrical ring can be established using ESMs in the same way. To
achieve this the ESMs must be connected together using ports 7 and 8. One
device must be switched to the redundancy manager mode. With ESMs and a
maximum of 50 devices in the ring, a reconfiguration time of less than 0.3 s can
also be achieved.
- SIMATIC NET 1
- Industrial Ethernet 1
- Trademarks 3
- Qualified Personnel 3
- Prior to Startup 4
- The Package 5
- Installing an OSM/ESM 5
- Further Documentation 6
- Finding Information 6
- Guide to the Manual 7
- Audience 7
- Standards and Approvals 7
- Contents 8
- Introduction 10
- 1.1.1 OSM ITP62 11
- Industrial Ethernet OSM/ESM 12
- C79000-Z8976-C068-10 12
- 1.1.2 OSM ITP62-LD 13
- 1.1.3 OSM ITP53 15
- 1.1.4 ESM ITP80 17
- 1.1.5 OSM TP62 19
- 1.1.6 ESM TP80 21
- 1.1.7 OSM BC08 23
- 1.1.8 OSM TP22 25
- 1.1.9 ESM TP40 27
- Functions 29
- Deleting Addresses 30
- 3.1 Bus Structure 33
- Figure 11: Bus with ESMs 34
- 3.2 Redundant Ring Structure 35
- 1 Fibre-optic (FO) 38
- 2 ITP XP standard cable 38
- Ring 1 (OSM ring) 38
- Ring 3 (OLM ring) 38
- Ring 2 (ESM ring) 38
- Version 1 41
- 1 Fiber-optic cable (FOC) 42
- Redundant Coupling of Rings 43
- 4.1 ITP/TP Ports 48
- Link Control 49
- Auto Polarity Exchange 49
- Autonegotiation Mode 49
- Autocrossover Function 49
- 4.1.4 FO Ports 51
- 4.1.5 Standby-Sync Port 52
- 4.1.6 Serial Interface 53
- Power Supply 55
- Signaling Contact 55
- In the RM Mode (additional) 55
- Standby-Sync Port: 55
- OSM/ESM in the Standby Mode: 56
- 4.1.8 Digital Inputs 57
- Fault (red LED): 58
- Stby – Standby (green LED): 58
- 4.2.2 LED "Power" 60
- LED on LED on 61
- 4.2.3 Port LEDs 62
- 4.2.4 Operator Controls 64
- Maintenance 66
- 5.2 Installation 68
- Standard Rail Mounting 69
- Removing from a Standard Rail 70
- Wall Mounting 73
- 5.3 Cleaning 75
- 5.4 Maintenance 76
- Firmware Update 77
- Technical Specifications 82
- Area of Application 89
- Approval for Australia 89
- UL Approval 89
- CSA Certification 89
- FM Approval 90
- Glossary 92
- References 95
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