Autohelm Codelock

[Mikenda]

I have just taken over a vessel with integrated Autohelm instrumentation (ST80). Two questions.
a) How do I know if the Codelock has been activated and if so is there a danger of it locking up if I modify the system? Can one deactivate it?
b) Are later Raymarine instruments compatible with the existing system via Seatalk

 

[Robin]

If the Codelock is 'On' the instruments won't work until the code is entered. If the rules are the same as for ST50s, there is a device at the Dealers which can read the code to enable you to enter it, after which you can switch Codelock 'off' or put in a new code number. I borrowed this device from a friendly Raymarine Dealer and did this job on a secondhand ST50 I had bought, you need power to the instrument and the device plugs into it also.

As far as I know all the instruments interconnect with Seatalk irrespective of type/age.