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<== Date ==> <== Thread ==>

Subject: Re: mbbo record
From: [email protected]
To: "F. Gougnaud" <[email protected]>
Cc: EPICS Tech-Talk <[email protected]>
Date: Thu, 15 Jun 2000 16:45:05 +0200 (METDST)
Francoise,

the mbbo record is designed to have 16 different states, each of which a
different raw value and string can be assigned to. The VAL field works
as an index to the states, so writing a value > 15 to the VAL field
definitely is an error.

The mbboDirect record seems more appropriate for your application: it
works as a command word record, i.e. you may set or reset as well single
bits as the complete word which then gets written to the hardware.

Note that for inputs there are the same two types of records: mbbi for
cases where the status word from the hardware can be mapped to <= 16
states, mbbiDirect for status words that get sliced into the single
bits. (Usually you will have one mbbiDirect record that polls the
hardware and multiple bi records linked to the mbbiDirect's bits through
CPP links for the single bits.)

Cheers and good luck!

Ralph


Replies:
Re: mbbo record Leo Dalesio
References:
mbbo record F. Gougnaud

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