MACHINE LEVEL SOFTWARE
The Mantissa Destination™ Machine Control System is a full-featured PC-based control
system offering high performance and flexibility. Industrially hardened distributed
I/O elements are integrated into a workstation PC that uses a graphical user interface
(GUI) front end, providing a user-friendly interface to the sortation controls.
The workstation interface provides the operator with the ability to monitor system
behavior, create assignments or change sorter parameters while refraining from involvement
with the logic’s internal workings.
Destination features Include:
- Ethernet networking
- Monitoring input sensors, such as emergency stop switches, panel controls and error
indicators (e.g. full chute sensors, tipped tray sensors, etc.), to maintain safe
and efficient machine operation
- Energizing outputs to discharge product at their assigned destinations
- Verifying that product is tipped when scheduled and monitoring re-circulating loads
until the product is correctly discharged at either the designated chute or the
jackpot chute
- Built in graphical system status and intuitive diagnostic tools
- Interfacing with automatic identification systems (Scanners, scales, etc.)
- Control of automatic induction equipment to properly position product on trays.
System Architecture
The Mantissa Destination Sortation Controller can be separated into four broad functional
modules or subsystems; the PC/Operating System Platform; the GUI Man-Machine Interface;
the Real Time Run Time Engine and the Distributed I/O Hardware.
Operating System
The operating system selected for the Mantissa Destination Sortation Controller
is Microsoft’s® Windows platform. Microsoft designed Windows to be a robust, reliable
platform for a wide range of mission-critical applications. It is used in data servers,
banking transaction processors, CAD/CAM systems and many other high-performance
high-reliability applications. While perfectly satisfactory is its own right, to
achieve a better real time response, the version of Windows, Mantissa Corporation
supplies contains the widely supported VenturCom real time extensions. These extensions
provide faster scan times with less variation between scans.
GUI Man-Machine Interface
The operator interaction with the Mantissa Destination™ Control Software is through
a “Windows®” based GUI. Leveraging on the strengths of the world’s most widely known
operating system brings a comfortable and intuitive feel to the operating screens.
Each screen is designed to provide real-time information on the health of the system
such as current running status, host connection state, chute jams, E-Stops, device
actuation and high/low speed alarms.
Real Time Run Time Engine
As the GUI Man-Machine Interface interacts with the external world, the Real Time
Run Time Engine interacts with the machine control of the tilt tray sorter. This
module is the heart of the sortation control. Developed by Mantissa Corporation,
this software application compiles down to an extremely fast running, high performance
module that runs independently of the other task.
Total sortation control comes from this module. Tray tracking, tray tipping, chute
full inputs, tip verification, tray empty/full sensing, etc. is all accomplished
at this level – quickly and efficiently.
Distributed I/O Hardware
The Distributed Input/Output Hardware System provides the medium by which the PC
Based Control System can actually read individual input bits from photo and inductive
sensors and turn on individual devices such as (tipper) solenoids. The PC uses distributed
I/O that is in the direct vicinity of the automated process with a powerful field
bus (local area network) as the communications link between the CPU and the I/O.
The field bus is PROFIBUS-DP, comprised of an I/O scanner card, a single two conductor
thin fiber optic cable and distributed Input/Output modules. This system can control
on a single channel up to 3,200 configurable points.
Additional screens provide maintenance information that facilitates troubleshooting
of the sortation system. Built in diagnostics allow the tipping of individual trays
or groups of trays in a predefined manner. Other diagnostics test and display the
workings of serial devices and/or networking devices. A Host Service TCP/IP emulation
is provided for complete troubleshooting of the entire system off line.
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