Measurement Specialties 9116 Download Internal Coefficients Command ‘v’, Vfaacc-ccdddd..dddd

Pressure Systems, Inc. Model 9116 User’s Manual

DOWNLOAD INTERNAL COEFFICIENTS (Command ‘v’)

Purpose: Downloads one or more internal coefficients to the module.

Command	““vfaacc[-cc]dddd..dddd”
	‘v’ is the command letter.
	‘f’ is the format field.
	‘aa’ is the array index field.
	‘cc[-cc]’ is coefficient index [or contiguous range].
	‘dddd’ are the datum field(s) each with a leading space.
Response	“A”
	‘A’ is the acknowledge letter

Description: The 1-character format field (f) is a single decimal digit that defines the format of each coefficient to be downloaded in the command’s datum ( dddd) fields, with each datum preceded by a space character. Most coefficients have a floating point datum type (f=0-1), while others have an integer datum type (f=5). Sending a datum in the improper format will result in an “N08" error response. Valid format types are shown in the following table:

f	converts each internal value from . . .
0	1-10-digit signed decimal “ [-xxx]x.[xxxxxx]”	to	single binary float
1	8-digit hex integer “ xxxxxxxx”	to	single binary float
5	8-digit hex integer “ xxxxxxxx”	to	long binary integer

max. char.

13

9

9

The 2-character array index field (aa) is a hexadecimal value selecting a particular internal coefficient array to receive the downloaded data. The first array index (aa=01) refers to channel 1's transducer, the 16th (aa=10) refers to channel 16's transducer. Finally, the last array (aa=11) refers to a special global array.

A single 1- or 2- character coefficient index field (c or cc) is a hexadecimal value that selects a particular coefficient within the specified array. Multiple contiguous coefficients may be specified by using a coefficient index “range” specified by adding a hyphen (negative sign) between two such indexes.

The coefficients of internal DH200 transducers used in the Model 9116 are selected with array indexes aa=01 through 10 (hex). All valid coefficient indexes (for each of these arrays) are listed in the following table:

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