Varec TankGate Interface 8315 Series Manuel d'instructions Page 29
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8315 TGI Software Description
Varec, Inc. 19
4 Software Description
The Tank Gate Interface software platform is based on a real-time, multi-tasking operating
system. The software consists of I/O scanning functions for data acquisition, a database/
database manager and communication functions for data transfer.
Note COM1 is not available on the 8315 Tank Gate Interface.
Figure 4-1: Software Block Diagram
4.1 Software Features
4.1.1 Real-Time / Multitasking Executive
The operation of the Tank Gate Interface is based on a highly reliable, field-proven real-time
multitasking executive. It provides task switching based on real-time events and interrupts,
message passing and task priorities. Its capabilities also include timed suspension of tasks,
queue handlers and interrupt processing tasks.
4.1.2 Real-Time Clock
Integral to the real-time executive is the system’s real-time clock. All timed events of the Tank
Gate Interface are coordinated by this clock. In addition to the real-time executive interaction,
all field data scanning is coordinated by the real-time clock.
4.1.3 Automatic Fault Recovery
The Tank Gate Interface has a watchdog timer that is periodically strobed by the microprocessor.
Should the processor suffer a lapse due to hardware or software failure, the watchdog timer will
time out and the Tank Gate Interface will then be reset and normal operation will resume.
- 8315 Tank Gate Interface 1
- Copyright 3
- Trademarks Acknowledged 3
- Disclaimer of Warranties 3
- Terms of Use 4
- Safety Precaution Definitions 5
- Safety Precautions 5
- Varec, Inc. vii 9
- Contents 10
- 1Overview 11
- Overview Tank Gate Interface 12
- 1.4.7 Surge protection 13
- 1.4.8 Operating temperature 13
- 1.4.9 Humidity 13
- 1.4.10 Storage temperature 13
- 2 Hardware 15
- Hardware Tank Gate Interface 16
- 2.2.1 Power Supply 17
- 2.2.2 Switches and Indicators 19
- 2.2.2.2 Hard Reset 20
- 2.2.3 Communications 20
- 2.2.3.1 COM0 (J7) 21
- Figure 2-12: COM1 SW2 Switch 22
- Figure 2-13: COM1 SW1 Switch 22
- 3.1 Features 25
- 3.2 Description 25
- Address 1 Shown 26
- 3.2.2 LED Indicators (D1-D6) 27
- Figure 3-4: Input Circuit 28
- Figure 3-5: Application 28
- 4 Software Description 29
- 4.1.4 Communications 30
- 4.1.5 Protocols 30
- 4.1.6 Data Scanning Task 30
- 4.1.7 Database Manager 30
- 4.1.8 System Tasks 31
- 4.2 Database Organization 31
- 4.2.1 Point Format 31
- 4.2.2 Parameter Description 31
- 4.3 Gathering Point Data 33
- 4.3.2 Change of State Format 33
- 4.3.4 Modbus Communications 34
- 4.3.5 Fixed Modbus Map 36
- 4.3.6 GWBLK method 36
- Varec, Inc. 27 37
- 4.4 Common Software Blocks 39
- 4.4.4 Emulator (EMU) 41
- 4.4.5 EMU Gateway (EMUGW) 43
- 4.4.6 Gateway Block (GWBLK) 44
- 4.4.7 Integer Register (IREG) 46
- 4.4.8 Modbus Gateway (MODGW) 46
- 4.4.9 Scaler Point (SCALER) 48
- Varec, Inc. 41 51
- 5.1.1 Parameters 53
- 5.1.2 Application 55
- Tank Gate Interface 56
- 5.2.1 Parameters 57
- 5.2.2 Application 58
- 5.3.1 Parameters 59
- 5.3.2 Application 60
- 8315 TGI 61
- Varec, Inc. 51 61
- 5.4.1 Parameters 63
- 5.4.2 Application 64
- Varec, Inc. 55 65
- 5.5 L&J Scanner (LJSCAN) 67
- 5.5.3 Fast Scan 68
- 6 Installation 71
- 8315 TGI Installation 73
- Varec, Inc. 63 73
- 7Using ViewRTU 75
- 7.4.1 ViewRTU window 77
- 7.5 The ViewRTU Menu Bar 77
- 7.5.1 The File Menu 77
- 7.5.2 The Point Menu 78
- 8315 TGI Using ViewRTU 79
- Varec, Inc. 69 79
- Figure 7-7: Edit Point dialog 80
- 7.5.3 The Config Menu 81
- 7.5.4 The Communications Menu 83
- 7.5.5 The Options Menu 85
- 7.5.6 The Help Menu 86
- 7.6 Using ViewRTU 87
- 7.6.1 Overview 87
- Varec, Inc. 79 89
- 7.6.3 To modify a Value 90
- Varec, Inc. 81 91
- Varec, Inc. 83 93
- Varec, Inc. 85 95
- Varec, Inc. 89 99
- 8 Troubleshooting 101
- 8.2.4 Performing a Hard Reset 103
- 8.3 Maintenance 104
- • Close the enclosure door 105
- A Appendix - Order Codes 107
- IOM035GVAE1313 110
- Document Code 110
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