902B Abs Piezo Operation manual
Query Command list
Communication information
Communication baud rate (4800, 9600, 19200, 38400, 57600,
115200,230400)
Transducer communication address (001 to 253)
Communication delay between receive and transmit sequence
Absolute Piezo sensor reading
Absolute Piezo sensor reading
Absolute Piezo sensor reading
Absolute Piezo sensor reading (three digits scientific notation)
@xxxSS1?;FF
@xxxSS2?;FF
@xxxSS3?;FF
Set point relay 1-3 status (SET=Relay energized / CLEAR=Relay
deenergized)
@xxxSP1?;FF
@xxxSP2?;FF
@xxxSP3?;FF
Set point 1-3 switch value
@xxxSH1?;FF
@xxxSH2?;FF
@xxxSH3?;FF
Set point 1-3 hystereses switch value
@xxxEN1?;FF
@xxxEN2?;FF
@xxxEN3?;FF
Set point 1-3 enable status (OFF, ON)
@xxxSD1?;FF
@xxxSD2?;FF
@xxxSD3?;FF
Set point relay direction (ABOVE or BELOW)
If set to above relay will be energized above setpoint value. If set to
below relay will be energized below setpoint value
Time on (hours of operation)
User programmed text string
Calibration and adjustment information
Pressure unit setup (torr, mbar or pascal)
Provides delta pressure value between current vacuum zero
adjustment and factory calibration
Provides delta pressure value between current atmospheric
adjustment and factory calibration
Analog voltage output 1: Pressure assignment and calibration. (first
digit is pressure assignment, second and third digit is calibration)
Analog voltage output 2: Pressure assignment and calibration. (first
digit is pressure assignment, second and third digit is calibration)
xxx = Transducer communication address (001 to 253. Broadcast addresses: 254, 255)