Siemens X-400 Manuel d'utilisateur Page 140
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Noté. / 5. Basé sur avis des utilisateurs
Glossary
Operating Instructions for SCALANCE X-400 Industrial Ethernet Switches
140 C79000-G8976-C186-03
Connection monitor-
ing
With regular link test pulses, SCALANCE X-400 monitors the con-
nected TP and FO cable segments for short-circuits or interruptions.
The SCALANCE does not send data to a segment from which it is not
receiving link test pulses.
Digital input
A digital input is used to acquire binary file information. A state change
can be logged in the Log Table or reported by E-mail or traps. The
voltage levels between – 30 V and + 3 V correspond to logical state "0“,
voltage levels between + 13 V and + 30 V correspond to logical state
"1“.
Dispersion
Broadening and distortion of light pulses in fiber-optic cable due to
signals arriving at different times. On multimode FOC, the distortion of
the output signal is greater than with single mode FOC.
Display Mode
(DMode)
Display mode that indicates various statuses (port status, power moni-
toring activated etc.). The modes can be switched over using a button
on the Switch CPU.
ESM
Electrical Switching Module – SIMATIC NET Ethernet switch with elec-
trical ports.
Fault mask
Specifies the desired status (good status). Deviations from this occur-
ring during operation are handled as faults.
FO port
Fiber-Optic Port
Full duplex
Two-way simultaneous - both communication partners can send and
receive at the same time.
Half duplex
Two-way alternate transmission mode- it is only possible to either send
or receive over the interfaces at any one time.
Latency
Latency specifies the time taken by frames to pass through a switch.
This does not include the time required for buffering frames.
Load Containment
With its filtering functions, a switch makes sure that local data traffic
remains local. The local network load of a segment is contained in the
originating segment and does not represent extra load on the remain-
der of the network.
- Trademarks 3
- 6 C79000-G8976-C186-03 6
- Preface 7
- Further Documentation 8
- Standards and Approvals 8
- Contents 9
- C79000-G8976-C186-03 10
- Introduction to 11
- Industrial Ethernet Switches 11
- 1.2 Topologies 13
- Electrical Ring 14
- Optical Ring 14
- Configuration Example 15
- 1.2.2 Star Structure 16
- 1.2.3 Line Structure 18
- SCALANCE X-400 21
- M M 4 9 2 - 2 23
- F O 2 x 1 0 0 0 23
- 2.2 Ports of SCALANCE X-400 24
- Transmission medium 25
- Transmission range 25
- Connectors 25
- 2.2.2 1000Base-TX 26
- 2.2.3 100Base-FX 27
- Transmission Range 28
- 2.2.4 1000Base-SX 29
- 2.2.5 1000Base-LX 30
- Compatibility List 31
- 32 C79000-G8976-C186-03 32
- Overview 33
- Components of the Product 35
- Signaling Contact 40
- DI Module 41
- Serial Port 43
- Ethernet Port 43
- Area of Application 44
- How It Works 44
- Diagnostics 45
- Startup Behavior 46
- 4.1 Media Modules 49
- Options for Slot 5 50
- Options for Slots 6 and 7 50
- Properties 51
- Connector 51
- 4.2 Covers, Dummy Cover 55
- CV490 2x1000 56
- Displays of the Cover 56
- CV490 2x100 57
- CV490 4x100 58
- Slot of the Dummy Cover 59
- Displays of the Dummy Cover 59
- 60 C79000-G8976-C186-03 60
- Extender Modules 61
- 66 C79000-G8976-C186-03 66
- Installing on an S7-300 Rail 68
- Dummy Cover 72
- Removing a Media Module 73
- Variants of the Covers 74
- Fitting a Cover 74
- Removing a Cover 74
- Fitting a Dummy Cover 75
- Removing a Dummy Cover 75
- Specifying the Slot Number 88
- Applying the Slot Numbers 88
- 6.5 Factory Defaults 89
- 6.6 Ports 90
- I N 3I N 4 92
- I N 5I N 8 I N 7 M 5 I N 6 93
- X 4 1 4 - 3 E 94
- 96 C79000-G8976-C186-03 96
- 6.7 Operator Controls 101
- Ring Ports in Slots 5 to 7 103
- R1 and R2 are set to OFF 104
- 6.8 LED Display 106
- Display Modes A through C 109
- Display in Display Mode D 110
- I N 1 / I N 5 111
- Display Modes A through D 112
- Port Statuses in DMode A 113
- Port Statuses in DMode B 114
- Port Statuses in DMode C 115
- Port Statuses in DMode D 116
- 6.9 Replacing the C-PLUG 117
- 6.10 Show Location 118
- Technical Specifications 119
- 122 C79000-G8976-C186-03 122
- 7.6 Extender Module EM495-8 127
- 1 0 7 , 5 128
- 1 0 9 , 5 128
- 1 1 2 , 4 128
- 7.7 Extender Module EM496-4 129
- Approvals, Certificates 131
- EMC Directive 132
- Required FDA and IEC labels 132
- Directive on Machines 133
- Installation Guidelines 133
- Note for Australia 134
- FM Approval 136
- ATEX Approval 136
- Certification 137
- 138 C79000-G8976-C186-03 138
- Glossary 139
- A&D Technical Support 147
- Nuernberg 147
- Johnson City 147
- A&D Technical Support 148
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