C_wiz: for total recall

Low cost, high performance vessel monitoring for Microsoft Windows

"Small minds discuss people, average minds discuss events, great minds discuss ideas."

- Admiral Hyman Rickover

Acknowledgements to Ken (Will's brother)...

D3 Library and SDK

At the heart of the flexibility of C_wiz is the D3 (data device driver) architecture.

What is a D3

Current D3 Library

All D3s listed below are included with the Evaluation Edition Download.

As D3s are not particularly hard to write, our intention is to provide any D3s developed in the future by ForTotalRecall free of charge. This statement of intent obviously can not cover any D3s written by third parties.

All D3s have inbuilt diagnostics tools, a 60 second trace capability and fully utilize the C_wiz Test Drive facility to provide context sensitive online documentation.

Contact Us if you think we don't have your requirement covered.


Caterpillar M5X


COM On-Off

COM Patch Panel

CruzPro All-In-One

Depth (NMEA 0183 DPT)

Frame Grabber (LTMM)

Frame Grabber (S2255)


The GPS (NMEA 0183 RMC) D3 listens to a GPS which is issuing NMEA 0183 $..RMC messages.

Any other messages from the GPS are ignored.

The D3 extracts latitude, longitude, course and speed data and sends it to C_wiz. The D3 also calculates rate of turn (time rate of change of course) and sends it to C_wiz.

In addition the D3 has 2 other features:

o PC syncing.

PC syncing is the process of adjusting the PC's internal clock to correspond with the time being broadcast by the GPS.

Most PCs internal clocks are not particularly accurate. There is not much point in recording time stamped data when the time stamp is dubious. This D3 can adjust the PC's internal clock to reflect the GPS time at user defined intervals.

o Automatic VIP change at sunrise and sunset.

Generally a different VIP should be used at night to that used during the day. This D3 can automatically change the VIP by calculating sunrise and sunset based on the date, latitude and longitude supplied by the GPS.

ICP DAS 7000(II)

Rudder (NMEA 0183 RSA)

SAE J1587

System Monitor

VDO Logic Combi

D3 Plans

D3 Software Development Kit (SDK)


Other Services



D3 Library and SDK

Dreaded Feature Summary



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