Measurement Specialties 9116 Command ‘c’ Sub-command Index 05 Select Data in a Stream, St bbbb

Pressure Systems, Inc. Model 9116 User’s Manual

Command ‘c’ — Sub-command Index 05: Select Data in a Stream

This sub-command sets options that cause a specified stream to deliver specific kinds of information to host. By default, only Pressure EU data are delivered for the channels already specified by the “00” command.

Command	“c 05 st bbbb”
	‘c’ is the command letter
	‘05’ is the sub-command index (‘ii’) for Select Data.
	‘st’ is the stream id digit (1, 2, or 3, (0 not allowed)
	‘ bbbb’ is the hex option field (bit map) to select which options will be
	returned in the data stream (see table)
	NOTE: all parameters are separated by a space character.
Response	“A”
	‘A’ is the acknowledge letter

Description: If this sub-command is never executed for a particular stream, then Pressure EU Data are delivered (by default) in that stream following the fixed format binary header ( tssss as described by the “01” sub-command). However, this sub- command may also delete these default pressure readings from a stream (by not specifying them) as well as add other selected acquired data to a stream (by specifying them).

The bit map values (shown in the following table) may be added together to specify all the actual data groups that will be delivered in each packet of the specified stream. The first two table entries, if their “bits” are specified, will cause two-byte binary (16-bit, big endian) status values to be delivered in the stream packet (immediately following the binary stream header). The third table entry, if specified, will cause the Pressure EU Data to be delivered (next), per the specified format (f), and for just the channels specified in the configured stream. The remaining table entries will cause other special data groups (i.e., raw pressures and EU temperature values, also in A/D counts or voltage forms) to also be delivered in each stream packet. Each of these special data groups is also output, if its “bit” is specified, in the order of its table entry (within the packet). Each group will also have a datum per the specified channels, and be in the specified format (per f).

Note

Selecting too many other data groups will compromise module performance.

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