58
Modbus register maps
A.7 Sample mode parameters
The sample mode parameters register (Table 23) defines basic counting characteristics
of a sample. Any updates to these registers will restart any active sample sequences.
A.8 Diagnostic data
Table 24 shows the Diagnostics data register that is updated at a 30 second (default) rate
or at the conclusion of any Test mode diagnostics.
Table 23 Sample mode parameters
Address Register description Access Size (bytes) Data format
600 Number of count bins R 2 1–4
601–616 Reserved
617 Count bin 1 limit R/W 4 0–4,294,967,295
619 Count bin 2 limit R/W 4 0–4,294,967,295
621 Count bin 3 limit R/W 4 0–4,294,967,295
623 Count bin 4 limit R/W 4 0–4,294,967,295
625–653 Reserved
654 ADC multiplier R/P 2 Factory calibration only
655 DAC multiplier 1 R/P 2 Factory calibration only
656 DAC multiplier 2 R/P 2 Factory calibration only
657 DAC offset 1 R/P 2 Factory calibration only
658 DAC offset 2 R/P 2 Factory calibration only
659 DAC offset 3 R/P 2 Factory calibration only
660 DAC offset 4 R/P 2 Factory calibration only
661 Flow offset R/P 2 Factory calibration only
662 ADC offset R/P 2 Factory calibration only
663–699 Expansion
Table 24 Diagnostics data record
Address Register description Access Size (bytes) Data format
700–705 Reserved
706 +5 VDC R 2 mV
707 +3.3 VDC R 2 mV
708 +5 VA R 2 mV
709–714 Reserved
715 Laser calibration R 2 mV
716 Laser current R 2 mA
717–723 Reserved
724 Error condition
1
R 2 System specific (e.g. sensor error)
725–749 Expansion
1
Set bits indicate a failure.