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Page D-4
IsoAir 310P Aerosol Particle Sensor Operations Manual
Appendix D Modbus
Input Registers
30211
string
Serial Number: Char 14, 15
Serial Number
30212
ushort
Device Status (high)
Device Status Mask
30213
ushort
Device Status (Low)
Device Status Mask
30214
ushort
Device State
Device State
30215
ushort
Number of data samples in
queue
Number of samples in
queue
30216
ushort
Time Stamp (high)
time_t
30217
ushort
Time Stamp (low)
time_t
30218
ushort
Sample Time (high)
Seconds * 100
Float Mode
30219
ushort
Sample Time (low)
Seconds * 100
Float Mode
30220
ushort
Data Packet Status (high)
Bit Mask
30221
ushort
Data Packet Status (low)
Bit Mask
30222
ushort
Flow Rate (high)
Flow * 10 Scale cfm
Float Mode
30223
ushort
Flow Rate (low)
Flow * 10 Scale cfm
Float Mode
30224
ushort
Volume (high)
Volume * 10 Scale cf
Float Mode
30225
ushort
Volume (low)
Volume * 10 Scale c f
Float Mode
30226
ushort
Location
Location value
n/a
30227
ushort
Number Particle Channels
Variable across types
4 fixed
30228
ushort
Number Analog Channels
Variable across types
0 or 3
30229
ushort
Particle Channel 1 (high)
Cumulative Raw Ch1
30230
ushort
Particle Channel 1 (low)
Cumulative Raw Ch1
30231
ushort
Particle Channel 2 (high)
Cumulative Raw Ch2
30232
ushort
Particle Channel 2 (low)
Cumulative Raw Ch2
30233
ushort
Particle Channel 3 (high)
Cumulative Raw Ch3
30234
ushort
Particle Channel 3 (low)
Cumulative Raw Ch3
30235
ushort
Particle Channel 4 (high)
Cumulative Raw Ch4
30236
ushort
Particle Channel 4 (low)
Cumulative Raw Ch4
30237
ushort
Analog Channel 1 (high)
Analog 1 * 10000
Option 2 Float Mode
30238
ushort
Analog Channel 1 (low)
Analog 1 * 10000
Option 2 Float Mode
30239
ushort
Analog Channel 2 (high)
Analog 2 * 10000
Option 2 Float Mode
30240
ushort
Analog Channel 2 (low)
Analog 2 * 10000
Option 2 Float Mode
30241
ushort
Analog Channel 3 (high)
Analog 3 * 10000
Option 2 Float Mode
30242
ushort
Analog Channel 3 (low)
Analog 3 * 10000
Option 2 Float Mode
Table
D-2
Input register – Data Packet (Continued)
Input Registers
Description (Data Packet)
Comment
Notes