System information

OMI 2.3.1 Release Notes
38 OMI 2.3.1 Release Notes
PCI Bus Compatibility Problem
Because of problems with the third-party PCI bus controller chip used on the original
MVS-8100, the MVS-8100 may experience acquisition-related problems in some
computer systems. These problems do not occur with the MVS-8100M or MVS-8100C.
All current and recent MVS-8100 orders are filled with the MVS-8100M. Consult the
MVS-8100 Hardware Manual to distinguish an original MVS-8100 from an MVS-8100M.
The problems affecting the original MVS-8100 can include image jitter during live video
display and/or missed or corrupted single acquisitions. The problems can be
intermittent and unpredictable. The problems may occur only when the MVS-8100 is
installed in a particular PCI slot.
For example, when used in Hewlett-Packard Vectra VA and Vectra VL models that use
the Pentium Pro or Pentium II CPU, original Cognex MVS-8100 frame grabbers have
been observed to work best when installed in PCI slot 4 (the fourth slot away from the
motherboard). These MVS-8100s may exhibit problems synchronizing with video
cameras when installed in PCI slots 1, 2, or 3 on these Hewlett-Packard PCs.
A diagnostic utility is available from Cognex Technical Support that can detect the bus
conditions that cause this problem. Use this utility to determine if your MVS-8100s will
be affected by the problem in the PCs and slots you intend to use.
Genlock Not Supported with Pulnix TM-9701 and
Sony XC-003
When the video format for the current camera is for the Pulnix TM-9701 or the Sony
XC-003, the Genlock Enabled checkbox is correctly greyed out on the Advanced tab
of the Image object’s dialog box. However, it is still possible to use the Image object’s
SetGenlockState() function as a Script, Visual Basic, C, or Visual C++ command to
enable genlock support for this camera.
For the Pulnix TM-9701, using SetGenlockState() appears to enable genlock support,
the genlock setting is actually ignored by OMI when the current frame grabber board is
an MVS-8100, MVS-8110, or MVS-8120 and the current video format is for the Pulnix
TM-9701.
MVS-8100C Does Not Support 6-Bit Acquisition
The MVS-8100C does not acquire 6-bit images, which means that the following Proces
object functions cannot be used: EdgDir0, EdgMag, Equalize, Hipas, and Quantize.