Chapter 1 OEM7 SPAN OverviewOEM7 SPAN Installation and Operation User Manual v4 25INSModel Meaning Description FunctionalityInheritanceS SPANEnabledStandard SPAN functionality.This model enables most SPAN functionality. SP EnhancedProfilesAllows the use of enhanced INS profiles for certainapplications. For example, dead reckoning performance iscontrolled using the LAND_PLUS INS Profile and Heave filteroutput is controlled using the MARINE_PLUS INS Profile.For information about INS Profiles, see INS Profiles onpage 77. For information about enabling and disablingINS Profiles, see the SETINSPROFILE command.Heave filter output is also controlled under this option.S+PR RelativeINSAllows for two SPAN systems to communicate and produce arelative solution (position, velocity, attitude) between them.This option also inherits the enhanced profile functionality ofthe P model. For more information, see Relative INS onpage 105S+P+RTable 1: INS Options1.2.2 IMU GradeThe IMU grade indicates which classes of IMUs are supported by the model. The IMU grade isspecified as a number between 1 and 3 to indicate the IMU grade available to the model.So, for example, to use an ISA-100C IMU, an IMU grade of 3 is required. A larger number alsoallows use of any IMU in a lower grade. So the S3 model required for the ISA-100C would alsoallow the use of any IMU in grades 1 and 2.Table 2: SPAN-Compatible IMUs below shows the IMU grade classification.Supported IMUsIMU Grade NovAtel Part Name IMU Name1IMU-CPT KVH CPT IMUIMU-H1930-CA50 Honeywell HG1930-CA50IMU-IGM-A1 IMU-IGM-A1IMU-IGM-S1 IMU-IGM-S1OEM-IMU-ADIS-16488 Analog Devices ADIS16488OEM-IMU-EG320N Epson G320NOEM-IMU-STIM300 Sensonor STIM300Table 2: SPAN-Compatible IMUs
