Siemens SIMATIC PANEL PC 877 Operations Instructions Page 87
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Functions
10.4 Fan monitoring
SIMATIC IPC677C
Operating Instructions, 05/2010, A5E02722710-01
87
10.4 Fan monitoring
The function monitors operation of the enclosure and power supply fans. When a fan fails,
the following reactions are triggered:
Response Option
The DiagBase or DiagMonitor software is enabled None
The fan fault is retained in memory until the cause of the fan failure has been rectified and
the error is reset by taking one of the following measures:
● Acknowledgment of the error message by the monitoring software
● Restart of the device
10.5 SRAM buffer memory
In order for applications to store data following a power failure, the motherboard features
battery-buffered SRAM. If the supply voltage fails for more than 20 ms for the AC power
supply or more than 5 ms for the DC power supply, then you will be informed about this
situation by the NAU signal.
At least 10 ms is available to copy the data to the buffered RAM. During this time, 128 Kb
can be saved with a full load and even more with a smaller configuration, in other words, a
lesser load. A maximum 2 MB memory window is displayed via a PCI address register. The
base address is initialized by the BIOS.
A corresponding function is implemented there for using the SRAM under WinAC RTX.
NOTICE
If replacement of the battery takes longer than 30 seconds, the data saved in the CMOS
RAM and in the buffered SRAM is lost.
Note
The buffer memory SRAM is available only with devices with PROFIBUS or PROFINET
interfaces.
10.6 Battery monitoring
The installed buffer battery has a service life of at least 5 years. The status can be checked
with two-tier battery monitoring. The information can be read from an I/O register and
evaluated.
When the first warning level is reached, the remaining service life of the battery for buffering
CMOS data amounts to at least 1 month.
- SIMATIC 1
- Industrial PC 1
- SIMATIC HMI IPC677C 1
- Preface 3
- Conventions 4
- Trademarks 4
- Table of contents 7
- Table of contents 10
- 1.1 Safety guidelines 11
- 1.2 General Information 12
- Transport 13
- Tools & downloads 13
- Optical drive 13
- Safety-relevant applications 13
- Safety 14
- 1.2 General Information 14
- 1.3 ESD directives 15
- Shipping ESD modules 16
- Description 17
- Key panel variants 18
- Description 19
- 2.3 Accessories of IPC677C 20
- Planning the use 21
- Rating plate 22
- COA label 23
- Approval 25
- 3.4.4 Type of fixation 26
- 3.5 Mounting cutout 27
- 3.5 Mounting cutout 28
- 3.6 EMC Guideline 29
- 3.6 EMC Guideline 30
- Mounting 31
- 4.2 Securing with screws 32
- IP54 degree of protection 33
- Introduction 33
- Procedure 33
- Connecting 35
- AC power supply 36
- DC power supply 37
- Localized information 38
- ①, if necessary 39
- Connecting 41
- ① to the device 42
- 6.1 Overview 45
- SIMATIC NET 46
- Additional information 46
- Coupling 46
- Hardware requirements 46
- 6.5 PROFINET 48
- Further information 49
- 6.5 PROFINET 50
- Commissioning 51
- See also 52
- 7.5 Additional applications 53
- 7.5.1 Touch Panel set-up 54
- 7.5.2 Key Panel adjustment 55
- 7.6 BIOS settings 56
- 7.7 USB 56
- 7.8 Notes on operation 57
- 7.8 Notes on operation 58
- Commissioning 59
- 7.8 Notes on operation 59
- Comments about faults 60
- Characteristics 60
- Flash drive functions 61
- Booting from the Flash drive 61
- Operation and configuration 63
- 8.2 Normal operation 64
- Calling up KeyTools 70
- Call "Touch input" 70
- 8.3.7 Panel PC Tools 71
- 8.3.8 CheckLanguageID 72
- Operation 75
- 9.2 Device with key panel 76
- 9.2.3 Keys 77
- Numeric keys 78
- 9.2.4 External keyboards 79
- 9.3 Device with touch panel 81
- Touch pen 82
- 9.3 Device with touch panel 84
- Functions 85
- 10.3 Watchdog (WD) 86
- 10.4 Fan monitoring 87
- 10.5 SRAM buffer memory 87
- 10.6 Battery monitoring 87
- 10.6 Battery monitoring 88
- Resistance to chemicals 90
- Scope of maintenance 90
- Cleaning the front membrane 91
- Front membrane 92
- Resistance 92
- Cleaning guidelines 92
- 11.5 Spare parts 93
- 11.7.1 Opening the Device 96
- 11.7.2 Memory expansion 97
- Installing a memory module 98
- Removing a memory module 98
- Inserting the slider 100
- Service and maintenance 101
- Preparations 102
- ① on the DVD 103
- ① of the 104
- ① the drive 104
- Preparation 105
- Installing an SSD drive 105
- Memory expansion options 106
- Opening the board slot 106
- ① and remove 109
- 11.8.1 Repairs 110
- Disclaimer of liability 111
- Disposal 112
- Replacing the battery 112
- Reconfiguring the BIOS setup 113
- ① from the 114
- ① on the bus 115
- ②. Remove the 116
- Installing the fan 119
- Removing the fan 119
- ① on the 120
- Restoring factory state 121
- Service and maintenance 122
- 11.9 Installing the software 122
- Partitioning the hard disk 127
- 11.9.4 RAID1 system setup 128
- 11.9.6 Installing updates 131
- 11.9.7 Data backup 132
- 11.9.8 CP 1616 onboard 132
- 12.1 Boot error messages 133
- Example 134
- 12.3 BIOS beep codes 135
- 12.3 BIOS beep codes 136
- 12.3 BIOS beep codes 137
- Special codes 141
- Troubleshooting/FAQs 143
- 13.1 General problems 144
- Troubleshooting/FAQs 145
- Technical data 147
- 14.1 General specifications 148
- Technical data 149
- Maximum current values 153
- Typical power values 153
- 14.4 AC voltage supply 154
- 14.5 DC power supply 155
- 14.6 Keyboard table 156
- 14.6 Keyboard table 157
- 14.6 Keyboard table 158
- Dimensional drawings 163
- 15.1 Dimension drawing IPC 164
- Dimensional drawings 165
- Detailed descriptions 167
- 16.1 Motherboard 168
- Detailed descriptions 169
- 16.1 Motherboard 169
- ; ; ; ; ; ;; ; 170
- PROFIBUS/MPI interface X4 171
- DVI-I port, X70 173
- Compact Flash card, X50 174
- 16.1.5 Internal interfaces 175
- 16.1.6 Front ports 177
- 16.2 Bus board 181
- 16.2 Bus board 182
- 16.2 Bus board 183
- 16.3 System resources 185
- 16.3 System resources 186
- 16.3 System resources 187
- 16.4 BIOS Setup 190
- Menu layout 191
- 16.4.4 Main menu 192
- 16.4.5 Advanced menu 193
- 16.4 BIOS Setup 194
- 16.4 BIOS Setup 195
- 16.4.6 Security menu 201
- 16.4.7 Power menu 202
- 16.4.8 Boot Menu 203
- 16.4.9 Version Menu 206
- 16.4.10 Exit menu 207
- BIOS Setup default settings 208
- 16.5.1 Introduction 212
- CP 1616 onboard as IO device 213
- 16.5.2 Firmware loader 214
- 16.5.2.1 Loading firmware 215
- Start downloading procedure 215
- Configuring 216
- Appendix 217
- Product safety 219
- +$=/2& 220
- Electrostatic charging 221
- B.1 Abbreviations 223
- B.1 Abbreviations 224
- B.1 Abbreviations 225
- Glossary 227
- Glossary 229
- SIMATIC IPC677C 233
- SIMATIC IPC677C 234
- Index 235
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