Page 2-2 Document Ref 905675-001 Rev 2
Product Information WWC T1 Set Up & Maintenance Manual
2 PRODUCT INFORMATION
2.1 System Description
The WWC (World Wide Calculator) is a ‘measuring system’ built to conform to the
international recommendations specified in the document OIML R117 Edition 1995.
The WWC is also a peripheral within the different Tokheim filling station systems. As
such, the WWC software and hardware can be configured without modifying the
characteristics of the measuring system.
The WWC is based on the CoCa (Today’s Common Calculator). The hardware has been
re-designed to keep up with technological advances and to allow more flexibility in the
extended scope but the main controlling parts are structured in the same way as the CoCa.
The software is similar to the CoCa software with adaptations to the new hardware and
updated functionality on the kernel side to ensure the re-use of all application parts, with
only minor changes. For further details, refer to the separate documentation, WWC System
Functional Description.
2.1.1 OPERATING PRINCIPLES
The WWC T1 Calculator has been built around a central microprocessor which
controls several other microcontrollers for the input and output devices e.g.
counters, indicators, peripherals etc.
For each road side (right and left) of the metering pump/dispenser, the double
pulse signals from one or more pulsers, mounted at mechanical volume meters,
are checked and the information is counted and displayed on the corresponding
transaction indicator unit.
One calculator can simultaneously control two deliveries - one at each side of
the dispenser. The data is checked through several hardware and software
security systems.
Connection to a filling station control system (self-service arrangement) is possible
through data communication. The calculator can also function as a standalone
unit whereby information is transmitted to the WWC via a remote control unit.
For further information on hardware components, general description of a delivery,
data security and technical characteristics, refer to the separate documentation,
WWC System Functional Description.
2.2 Main Components of the WWC
The WWC consists of a number of modules which can be combined depending on the type
of the calculator and the number of products and options used. The main components
are:-
•External Power Supply (refer to see section 2.2.1)
•Mainboard (refer to section 2.2.2)
•I/O Board (refer to section 2.2.3)
•Transactions Displays (refer to section 2.2.4)
•User Access Devices (refer to section 2.2.5)
Issue A
To Next Page
Loading...