Novatel OM-20000141 user manual Software Configuration, Gnss Configuration, Span IMU Configuration

Chapter 2 SPAN Installation

SPAN-IGM powers the odometer. See Appendix A, Technical Specifications on page 52 for the pin outs of the SPAN-IGM interface cable. Connect the appropriate pins to your chosen odometer. The cable requirements are shown in Table 3, Cable Connections for Kistler CWPT Sensor on page 24.

Kistler provides an M12 to DB9 cable for use with the CWPT odometer. However, certain revisions of this cable to do not bring through all four signal inputs. SPAN-IGM requires all four signal inputs to operate correctly. See your CWPT documentation for cable details.

Table 3: Cable Connections for Kistler CWPT Sensor

8-pin M12 Connector	Function	J2 Wire Bundle
on CWPT Sensor
Pin 1	GND	DGND
Pin 2	+UB (Input Power)	WS-OUT
Pin 3	Signal A	ODM_A+
Pin 4	Signal A inverted	ODM_A-
Pin 5	Signal B	ODM_B+
Pin 6	Signal B inverted	ODM_B-
Pin 7	Reserved	–
Pin 8

The SPAN-IGM-S1 supports only the A signals from the wheel sensor. It does not process the B signals.

2.4Software Configuration

2.4.1GNSS Configuration

The GNSS configuration can be set up for different accuracy levels such as single point, SBAS, DGPS and RTK (RTCA, RTCM, RTCM V3 and CMR). Refer to the OEM6 Family Installation and Operation User Manual for details on DGPS, RTK, L-band or SBAS setup and operation.

With no additional configuration, the system operates in single point mode.

2.4.2SPAN IMU Configuration

You can configure the IMU portion of the SPAN system using software commands or the NovAtel Connect software utility.

A GNSS antenna must be connected and tracking satellites for operation.

2.4.2.1Configure SPAN Manually

Follow these steps to enable INS as part of the SPAN system using software commands:

1.Issue the SETIMUTOANTOFFSET command to enter the distance from the SPAN-IGM to the GNSS antenna, see the SPAN on OEM6 Firmware Reference Manual (OM-20000144).

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