Indyload178

The link(s) listed above are included for the user's convenience. Patterson Companies is unable to control or be responsible for the contents and availability of third parties' websites. Download: The dicom2 tool is a single executable file. Windows users can download this binary file directly. Linux users can download a gzip'ed compressed archive and decompress it accordingly. Note: there is no separate DICOM dictionary file anymore, it is bundled within the binary. You can safely remove your old DICOM dictionary (dicom.din). Download DICOM software MicroDicom DICOM viewer. Installation package: MicroDicom DICOM viewer 3.8.1 x86 (4.17 MB 2020-11-25).

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Description
The download available on this page updates an existing installation of the Diacom Marine program. This download is not intended as a first-time installation and does not contain all of the resources available on a Diacom Marine program CD.

Important OS Requirements
This update supports 32 bit and 64 bit versions of Windows 10, 8, 7 and Vista. 64 bit Windows versions require the use of Diacom USB cable #94073. If you have an older USB cable please contact us for details at (773) 736-6633.

What's New in Version 3.21

▪ Update For Mercury 25 & 30 HP EFI: Version 3.21 provides improved diagnostic support for Tohatsu based Mercury 25 & 30HP EFI engines with added parameters and fault history improvements.

▪ MerCruiser / Mercury Outboard / Mercury Racing G3 engine diagnostics:Version 3.21 supports G3 CAN based engine diagnostics through 2020 model year. Support added for new V6 and V8 outboards as well as other Mercury, MerCruiser
and Mercury Racing engines. This support requires Diacom USB cable #94073 with a minimum cable software revision of 33.
Note: G3 CAN based engine diagnostics require both adapters 94029 and 94032.

▪ Volvo Penta Engines:Version 3.21 contains changes to Volvo Penta DTC freeze frame parameters including parameter scaling.

▪ Update For Indmar Engines:Version 3.21 provides support for Indmar's new 2.3L direct injected EcoBoost engine and contains updated fuel pressure scaling and data additons.

This document describes the Diacom hardware and software package.Tech Edge has no affiliation with the Diacom manufacturer and neither supports nor endorsesthe product. All information and link(s) presented here are believed to be in the publicdomain. We welcome further information regarding this package.

Note that if you need a scan tool then you can build your own quite cheaply,and use our own free software (see last paragraph below).

What is DIACOM?

The DIACOM product is a combination of software and hardware produced byRinda Technologies of 563 N. Elston Ave. Chicago, IL 60630, USA.

DIACOM stands for Diagnostic Interface for Automotive Computers.

Diacom displays diagnostic information, available from a vehicle's ECU, on a PC screen.This process is shown in the diagram and highlights that the Diacom hardware connects to both thevehicles ALDL connector and the PC's parallel port. The Diacom software is controlled from the keyboardand displays results on the PC's screen. Not shown is Diacom software's ability to saveand load information to and from disk.

Rinda's information on Diacom lets you downloada demo. But, as you'll see, it's really an advertisement, but does show Diacom's user interface.Diacom's strength lies not in its relatively unsophisticated software and its very simple hardware,but in the database of vehicles that Rinda maintains and that Diacom therefore supports.

For many early ECUs, Diacom can only tell you very basic information about your vehicle,because that's all that's available from the ECM.For example, the Australian Holden VN Commodore uses a GM P4 series ECU(type number 1227808)and this ECU outputs just twenty (20) bytes of data. But that 20 bytes can be used to diagnosequite a number of faults present in the ECU itself, within a vehicle sensor, or with the vehicle's wiring.For an experienced mechanic using a 'swap and retest' methodology, this can be enough extra informationto enable accurate and speedy fault identification.

The problem, for the average weekend handyman, is that Diacom is not a cheap product to purchase.

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Diacom Hardware

The following schematic is a functional equivalent of the Rinda supplied ALDL hardware.On the left it shows connections to the PC's parallel port.On the right is shown the connections to the ALDL connector.

The three transistors in the middle and to the right control the ALDL mode selected.The two transistors on the bottom right read 160 baud ALDL and other data.The transistor at the top and the middle leftmost are for reading (and writing) 8192 baud data streams.The bottom leftmost transistor enables the other transistors above it.

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Diacom Prototype

I have made up this circuit and can verify that it works ona Holden VN Commodore with software supplied by Rinda.Rather than use 2670 ohm resistors, I used 2.7k (also called 2k7) ohm resistors,and I also used BC547 transistors rather than the ones suggested(these are garden variety NPN transistors).

This is a picture of my one-off unit. The wires on the bottom go off to whatever ALDLconnector you require for your vehicle (ie. the Car ALDL connector in the schematic).

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The photo also shows a red LED, on the left, to indicate power(connect to pin H for some vehicles)and a green LED for ALDL data (connect to pin D or E depending on vehicle).These were added as a diagnostic aid and connect to the points above and GND,with a series 3k3 current limiting resistor.

Unfortunately, we can't answer any questions about how to buildthis circuit as this information is intended to enable you to fixan existing cable that was originally purchased from Rinda.But you can make your own 160or 8192baud interface.

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Last updated 14 Feb 2001

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To ensure the correctness of this document, we greatly appreciatedyour feedbackon the information presented here.Copyright (c) 1999, Tech Edge Pty. Ltd.

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Author P. Gargano

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