Pressure Systems 9022 - Manual (Page 133)

Pressure Systems, Inc. NetScanner™ System (9016, 9021, & 9022) User’s Manual
www.PressureSystems.com 4 - 23
4.7.5.2 For Non-digitally Compensated 9400 Sensors With Non-volatile Memory
Non-digitally compensated 9400 sensors with non-volatile memory are not
affected by the ‘w26’ command. The module will always use sensor
EEPROM data, if available.
4.7.6 Store parameters into non-volatile memory
4.7.6.1 For Non-digitally Compensated 9400 Sensors Without Non-volatile Memory
or Non-9400 Sensors
All of the above commands download data into volatile memory. If the
module is reset, the effects of the commands will be lost unless the ‘w07’
command is issued prior to module reset. The ‘w07’ command is used to
copy all of the parameters from volatile to non-volatile memory.
4.7.6.2 For Non-digitally Compensated 9400 Sensors With Non-volatile Memory
Non-digitally compensated 9400 sensors with non-volatile memory are not
affected by the ‘w07’ command. Sensor offset and gain terms are
downloaded into sensor non-volatile memory using ‘w08’ and ‘w09’
commands, respectively. Coefficients c0 through c3 are downloaded into
sensor non-volatile memory using the ‘w27’ command. The ‘w27’
command can use an optional position field to make the action channel-
specific. For example, ‘w2700 0801’ will perform the download for
channels 12 and 1.
User-defined data, manufacturing reference number, full-scale range code,
and front-end gain are downloaded immediately into sensor non-volatile
memory as a result of the ‘v’ command (together with the associated index
number for each parameter).