Lighthouse Worldwide Solutions ApexR02, Operating Manual

Page: 47 / 84

Program with the MODBUS Protocol
248083447-1 Rev 1 6-5
Sensor Setting Registers 40001 and 40003 through 40023 are protected
and should not be changed.
Location (Register 40026)
For Particle Counters, this value specifies the location where a sample
was recorded.
Hold Time (Registers 40031, 40032)
The Hold Time is used for pausing in between samples for multiple
cycles.
This time is specified in seconds. The maximum value is 359,999
seconds (high word: 5, low word: 32319) which is 99 hours, 59
minutes, and 59 seconds. To set the Hold Time to a value less than 9
hours, 6 minutes, 7 seconds, enter the number of seconds in the
low
register (40032).
During Hold Time, the Device Status bit is 0 (Idle).
Sample Time (Registers 40033, 40034)
The Sample Time specifies the time period of each sample. This time
is specified in seconds. The maximum value of the sample time is
86,399 seconds (high word: 1, low word: 20863) which is 23 hours, 59
minutes, 59 seconds.
To set the Sample Time to a value less than 9 hours, 6 minutes, 7
seconds, enter the number of seconds in the
low register (40034).
During the Sample Time, the Device Status is 1 (Sampling).