Table 27: MODBUS registers
MODBUS
reg #
DPR hex
addr
Description
Scaling (decimal places)
Size in bytes
MODBUS
reg #
11
14
Ch1 rev totals
#T DIGITS
4 (2 16 bit int)
11
13
18
Ch1 #tot digits
0
2
13
14
1A
Ch1 mass flow
#M DIGITS
4 (IEEE 32 bit)
14
16
1E
Ch1 Fwd mass totals
#MT DIGITS
4 (2 16-bit int)
16
18
22
Ch1 rev mass totals
#MT DIGITS
4 (2 16-bit int)
18
20
26
Ch1 #mass tot digits
0
2
20
21
28
Ch1 timer
2
4 (2 16-bit int)
21
23
2C
Ch1 error code
0
2
23
24
2E
Ch1 sound speed
3
4 (2 16-bit int)
24
26
32
Ch1 molecular weight
4
4 (2 16-bit int)
26
28
36
Ch1 sig strength upstream
1
4 (2 16-bit int)
28
30
3A
Ch1 sig strength downstream
1
4 (2 16-bit int)
30
32
3E
Ch1 temperature
2
4 (2 16-bit int)
32
34
42
Ch1 pressure
3
4 (2 16-bit int)
34
36
46
Ch2 velocity
2
4 (2 16-bit int)
36
38
4A
Ch2 act volumetric
#Q DIGITS
4 (IEEE 32 bit)
38
40
4E
Ch2 std volumetric
#Q DIGITS
4 (IEEE 32 bit)
40
42
52
Ch2 fwd totals
#T DIGITS
4 (2 16 bit int)
42
44
56
Ch2 rev totals
#T DIGITS
4 (2 16 bit int)
44
46
5A
Ch2 #tot digits
0
2
46
47
5C
Ch2 mass flow
#M DIGITS
4 (IEEE 32 bit)
47
72
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