IQM 60 V5 Pump Revision October 2010
38
Example (To poll ozone sensor resistance): 0x55 0x01 0x0E 0x9C
34*. Sensor resistance request command reply data stream, 15 bytes:
SENSOR, AQM_ID, SENSOR_TEMP, SENSOR_TYPE, TEMPERATURE, RESERVED4,
SENSOR_STATUS, RESERVED, CHECKSUM
* SENSOR - 1 byte monitor reply data stream header, its value is 0xAA.
* SENSOR_TYPE - 1 byte gas type, its value will be same as the request command value, see section 2
for details.
* SENSOR_TEMP - 1 byte command (0x0E)
* TEMPERATURE - 4 bytes floating point data value, sensor heater temperature.
* RESERVED - 1 byte reserved space.
* SENSOR_STATUS - 1 byte sensor status indication, refer section 3 for details.
* CHECKSUM - 1 byte the data stream's check sum - that makes the command stream total bytes sum
be zero.
Command values:
SENSOR_PARAM_DOWNLOAD
=
0x18
SENSOR_PARAM_UPLOAD =
0x19
SENSOR_RESISTANCE
= 0x0D
SENSOR_TEMP
=
0x0E
******************************************* END ******************************************************
Section 2.
Protocol command values:
MONITOR
= 0x55 header command used for receiver command
SENSOR
= 0xAA header command used for monitor reply
GET_CONFIGURATION = 0x08 Request configure of AQM box command
SET_CONFIGURATION = 0x09 Configure AQM box command
GET_OPERATION
= 0x06 Set AQM box operation command
SET_OPERATION
= 0x07 Get AQM box operation command
GET_FILE_NAME_LIST = 0x0A Get all file name list command
DOWNLOAD_A_FILE
= 0x0B Download a file from SD card command
DELETE_A_FILE
= 0x0C Delete a file in SD card command
ZERO_CAL
= 0x12 Zero calibration command
SPAN_CAL
= 0x13 do span calibration
ZERO_SCRUBBER_ON = 0x14 Turn on zero scrubber
ZERO_SCRUBBER_OFF = 0x15 Turn off zero scrubber
GET_GAIN_FACTORS
= 0x16 request span calibration values
SET_GAIN_FACTOR
= 0x17 Set sensor gain factor
SET_SENSOR_NAMES = 0x1C Set sensor names
SET_DECIMAL_NUMS
= 0x1D Set sensor concentration display decimal points number
SET_RTC
= 0x1E Set AQM monitor Real Time Clock.
SET_CONVERSION_FACTOR
= 0xFA Set sensor ppm to mg/m3 conversion factors.
AQM_INFO
= 0xFB AQM monitor information request command.
ZERO_INFO
= 0xFC Zero calibration status request command
SENSOR_TYPE
These values defined a sensor type respectively. Some type of sensors can be
extended up to 4 more subtypes, such as, NO2 can extend to 0x51, 0x52, 0x53.
Some of can one only extend 1 subtype for reserving. However, every extended
sensor type need a special program. Therefore the value can be any of the
followings and their extensions (Aeroqual may update the sensor coding):
