5.2 Operating Mode Modbus Registers
Tables 5.12 to 5.23 detail the contents of the Modbus registers
accessible while the instrument is in the operating mode.
Two data types are used:
•
32-bit single precision floating point data in IEEE format
•
64-bit double precision floating point data in IEEE format
Note. When writing to a parameter that occupies
more than one register position then all registers relating to
that parameter MUST be written to as part of a multiple
register write. If this is not acheived a NAK exception
response is issued. Individual registers can be read without
causing an exception response.
When accessing a parameter that occupies more than one
register position, the lowest numbered register contains the
most significant data.
A
n
a
o l
g
n I
p
u
s t
R
a e
A
1
A
2
A
3
A
4
A
5
A
6
B
1
B
2
B
3
B
4
B
5
B
6
C
1
C
2
C
3
C
4
C
5
C
6
D
1
D
2
D
3
D
4
D
5
D
6
E
1
E
2
E
3
E
4
E
5
E
6
F
1
F
2
F
3
F
4
F
5
F
6
Table 5.12 Analog Inputs
5 OPERATING MODE...
M
o
d
b
u
s
R
e
g
s i
e t
s r
d
o
n
, y l
3
2
b
t i
s
n i
g
e l
r p
c e
s i
o i
n
o l f
a
n i t
g
p
o
t n i
0
0
0
1
a
n
d
0
0
0
2
0
0
0
3
a
n
d
0
0
0
4
0
0
0
5
a
n
d
0
0
0
6
0
0
0
7
a
n
d
0
0
0
8
0
0
0
9
a
n
d
0
0
1
0
0
0
1
1
a
n
d
0
0
1
2
0
0
1
3
a
n
d
0
0
1
4
0
0
1
5
a
n
d
0
0
1
6
0
0
1
7
a
n
d
0
0
1
8
0
0
1
9
a
n
d
0
0
2
0
0
0
2
1
a
n
d
0
0
2
2
0
0
2
3
a
n
d
0
0
2
4
0
0
2
5
a
n
d
0
0
2
6
0
0
2
7
a
n
d
0
0
2
8
0
0
2
9
a
n
d
0
0
3
0
0
0
3
1
a
n
d
0
0
3
2
0
0
3
3
a
n
d
0
0
3
4
0
0
3
5
a
n
d
0
0
3
6
0
0
3
7
a
n
d
0
0
3
8
0
0
3
9
a
n
d
0
0
4
0
0
0
4
1
a
n
d
0
0
4
2
0
0
4
3
a
n
d
0
0
4
4
0
0
4
5
a
n
d
0
0
4
6
0
0
4
7
a
n
d
0
0
4
8
0
0
4
9
a
n
d
0
0
5
0
0
0
5
1
a
n
d
0
0
5
2
0
0
5
3
a
n
d
0
0
5
4
0
0
5
5
a
n
d
0
0
5
6
0
0
5
7
a
n
d
0
0
5
8
0
0
5
9
a
n
d
0
0
6
0
0
0
6
1
a
n
d
0
0
6
2
0
0
6
3
a
n
d
0
0
6
4
0
0
6
5
a
n
d
0
0
6
6
0
0
6
7
a
n
d
0
0
6
8
0
0
6
9
a
n
d
0
0
7
0
0
0
7
1
a
n
d
0
0
7
2
19