Sensoray 7429 Manuel d'utilisateur télécharger pdf (Page 21)

Read Data

This command returns the most recently measured sensor data from the specified chan-

nel. The returned value is scaled according to the declared sensor type. Regardless of

sensor type, the returned value is always represented in 16-bit two's complement form.

Refer to the sensor tables near the end of this manual for a description of the data format

used by each sensor type.

COMMAND: (CHAN)

RESPONSE: (HIGH DATA),(LOW DATA)

Example: Channel 6 is configured for the 5 Volt measurement range. This se-

quence will read and display the channel 6 voltage:

CALL SendByte (6)'opcode + channel

PRINT ReadWord% * .0002; " volts"

Example: Channel 0 is configured as a 350¾ strain gage rated at 2.7 mV/V at 150

PSI. Data scaling is programmed to 0.1 psi/bit. A suitable program segment to read

and display channel 0 data:

CALL SendByte (0)'opcode + channel

PRINT ReadWord% * .1; " PSI"

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Sensoray 7429 Manuel d'utilisateur Page 21