Crystal XP2i-DP Digital Differential Pressure Gauge Manual de usuario descargar pdf (Pagina 9)

Commands  7

XP2i Programming Instruction Manual

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ACKNOWLEDGMENT OF A COMMAND

The XP2i always returns some indication to let you know a command or query was received and acted on. For queries, the return of the measurement data is

the acknowledgment. For commands, possible acknowledgments are “

A”, “ N” or “X”, followed by a comma then a single digit. The digit indicates whether there

were any reception errors. The combination is left justied.

A . . . . . . . . . . . . .The XP2i understood the command and acted on it.

N . . . . . . . . . . . . .The XP2i did not understand the command, due to either syntax or reception errors.

X . . . . . . . . . . . . .The command was understood, but is not implemented or supported at this time.

Following an “

A”, “ N” or “X”, the single digits mean the following:

Ø . . . . . . . . . . . . .There were no reception errors.

2 . . . . . . . . . . . . .Buer overow.

4 . . . . . . . . . . . . .Framing error.

6 . . . . . . . . . . . . .There were both buer overow and framing errors.

Example acknowledgment:

A,Ø . . . . . . . . .Understood the command and acted on it. No reception errors.

N,4 . . . . . . . . .Could not understand the command because there was a framing error.

N,Ø . . . . . . . . .Could not understand the command, even though it was received without errors, so syntax must have been wrong.

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Crystal XP2i-DP Digital Differential Pressure Gauge Manual de usuario Pagina 9

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