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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">On Sunday 01 June 2008 12:11:00 Bob Safranek wrote:</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">> Does anyone know if there is a public description of the interface</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">> protocol for</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">> the X-RITE RM400 Spectrophotometer?</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">> Even better would be an open source library to talk to it.</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">> Thanks!</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">> --bob</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">The specifications say :</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">"Interface: RS-232 serial interface with baud rates from 1200 to 19.2K communication via RCI commands Interface"</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">All of the pre-merger X-Rite devices used "RCI commands" which is the protocol for the device. At one time the documents that covered these were available to anyone who was an X-Rite regisitered developer (there are at least two on this list). But the last time I asked X-Rite for an RCI document for another device (DTP-41B) I go no response from them at all. I do have RCI documents for the DTP-20 and the DTP-92/94 series devices. </p>
<p style="-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"></p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">In addition there is a lot of RCI related code in the ArgyllCMS meter support libraries for a number of other devices that could serve as an augmentation to whatever you might find elsewhere. For most of these devices the vast majority of the protcol is the same. But there are minor differnces from device to device mostly with things related to initalization and of course differences related to the capabilities of the device. This device appears to be a simple spot reading meter (IE. no strip reading capabilities) and I would guess that it's command set is very similar to the DTP-22 which is supported by the ArgyllCMS meter code.</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">In any case you should contact X-Rite support and ask them for the RCI document for the device. With that documentation in hand if should be possible to clone and modify one of the existing RCI based interfaces in the ArgyllCMS meter code to handle this device. But you should expect this to take a significant amount of effort.</p>
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<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">Hal</p></body></html>