streamdevice mbbiDirect mask

[Silver <marco_hair@163.com>]

hi,

in the website of streamdevice, it says:

Normal Operation

Depending on the format type, different record fields are used for output and input. The variable x stands for the written or read value.

DOUBLE format (e.g. %f):

Not allowed.

LONG format (e.g. %i):

If MASK==0 (because NOBT is not set):

Output: x=VAL
Input: VAL=x

If MASK!=0:

Output: x=RVAL&MASK
Input: RVAL=x&MASK

MASK is initialized to NOBT 1-bits shifted left by SHFT.

ENUM format (e.g. %{):

Not allowed.

STRING format (e.g. %s):

Not allowed.

In my case, I use mbbiDirect and get a value as 0x29 (b"0010,1001") in VAL field. If I want to mask it with a value 0xC1(b"1100,0001"), how to set NOBT/SHFT field?

Thanks a lot in advance.

 

 

 

 

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Best wishes

Geyang 2015-07-19