DIGITAL GEAR INDICATOR CAN RPM by Motec M800

I have motec M800 ECU and Digital Gear Indicator. How can adjustment, gear indicator read RPM from Motec ECU? I tried
RPM source CAN
RPM input CAN ID 0x5F0
Byte position 0
Num bytes 2 bytes
Endian big endian
Divider 1
Multiplier 1

Not work.

Thanks

Imre

I think if I remember m800 is multiplex message..