2 SmartPilot X-Series Commissioning & Setup GuideRudder reference informationIn SPX-30, SPX-SOL & SPX-CAN systems, the rudder position is shown by a rudderreference bar and indicator on the Pilot Controller display.Note:The SPX-30 and SPX-SOL systems obtain rudder reference information from a rudderreference transducer. The SPX-CAN system rudder reference information is provided by the as-sociated Volvo IPS system.The basic SPX-10 system is supplied without a rudder reference transducer, so in thebasic system, the Pilot Controller display does not show a rudder reference bar orindicator. However, the SPX-10 system is compatible with the Raymarine rudderreference transducer, and this can be fitted as an option.SeaTalk Controller differencesMinor differences in the control functions of the ST6002, ST7002 and ST8002SeaTalk Pilot Controllers are as follows:ST6002 Controller ST7002 Controller ST8002 Controller• standby & autofunction keys• +1, -1, +10 & -10 coursechange keys• disp & track extendedfunction keys• standby & autofunction keys• +1, -1, +10 & -10 coursechange keys• resp, track, mode, res’m,disp, up & down extendedfunction keys• standby & autofunction keys• Rotary course change con-trol• resp, track, mode, res’m,disp, up & down extendedfunction keysDisplay in systems with rudder referenceinformation D10779-1Display in basic SPX-10 systemD6400-1D6401-1D6402-1