Справочник Пользователя для Varec 8315 Series

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8315 L&J Tankway Software Description

4 8315 L&J Tankway Software Description

The TankGate 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.

Figure 4-1: Software Block Diagram

4.1

Software Features

The operation of the TankGate 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.

Integral to the real-time executive is the system’s real-time clock. All timed events of the 

TankGate are coordinated by this clock. In addition to the real-time executive interaction, 

all field data scanning is coordinated by the real-time clock.

The TankGate 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 TankGate will then be reset and normal operation will resume.