A P P E N D I X C
Modbus Mapping Guide
Read-Only Registers
Note: The 8510+ uses the 3x register range (starting with 30001) to expose the variables (data) that result from
the flow measurement process. This same data is mirrored to the 4x range (starting at 42001) and is also treated
as read-only by the 8510+.
30001 (42001)
30003 (42003)
30005 (42005)
30007 (42007)
30009 (42009)
30011 (42011)
30013 (42013)
30015 (42015)
30017 (42017)
30019 (42019)
30021 (42021)
30023 (42023)
30025 (42025)
30027 (42027)
30029 (42029)
30031 (42031)
30033 (42033)
30035 (42035)
30037 (42037)
30039 (42039)
30041 (42041)
30043 (42043)
30045 (42045)
30047 (42047)
30049 (42049)
Address
Temperature Section1
Temperature Section2
Temperature Section3
Temperature Section4
Temperature Section5
Variable
Flow Section1
Flow Section2
Flow Section3
Flow Section4
Flow Section5
Volume Section1
Volume Section2
Volume Section3
Volume Section4
Volume Section5
Level Section1
Level Section2
Level Section3
Level Section4
Level Section5
Status Section1
Status Section2
Status Section3
Status Section4
Status Section5
Notes
32-bit Float
32-bit Float
32-bit Float
32-bit Float
32-bit Float
32-bit Float
32-bit Float
32-bit Float
32-bit Float
32-bit Float
32-bit Float
32-bit Float
32-bit Float
32-bit Float
32-bit Float
32-bit Float
32-bit Float
32-bit Float
32-bit Float
32-bit Float
32-bit integer
32-bit integer
32-bit integer
32-bit integer
32-bit integer
C-1