3335 Modbus table
Modbus configuration is displayed in tree form. An example is shown in Figure 18.
I-
l
t
d
�
.
��
:
9600
....
Sensor
Add
ress
:
Ox01
....
Function
:
READ _H
OL
D
ING
_REG
I
STERS
....
R
e
g
i
st
e
r
Ad
d
re
ss
:
0.0002
:
_. ...
Reg
i
st
er Co
u
nt
:
2
!
L
..
Data Type
:
FLOAT
�-
[
I
ndex
1
)
! ..
Ba
ud
:
9600
'
....
Sensor Address
:
Ox01
....
fu
n
ctio
n
:
READ _HOLD
ING
_R
E
G
I
ST
E
RS
....
Reg
i
st
e
r
Ad
dress
:
0.0008
_.
...
Reg
i
ste
r
Count
:
2
'
....
Data Type
:
FLOAT
Figure 18 Modbus Table
Click 'Add' to add a new item to the table. For ease of configuration a small selection of
preset sensors are available. Please consult your sensor manual to enter the correct
details.
Add to Modbus T
a
b
l
e
X
8oudR«e 11,200
S
enso
r
Address
I
0�02
:====----�
Function Code
j
READ
_
H
O
LDlliG
_
iU:G
IS
itRS
v
I
RCOst
e
r
Address
I
O
x
OOOO
R
eg�e
r
Col.rt
12
:====----�
o.t.r,,,. �l•w_,,
______ v�I
Figure 19 Modbus Add
Some Modbus sensors require delays between commands. for example an INWUSA
PT12 sensor requires a dummy read holding register command followed by a delay.
then another read holding register request to get an up to date reading having just been
powered on. To add an inline delay between commands. select 'CUSTOM_ TIME_DELAY'
from the function code drop down box. and enter a number of milliseconds in the
register address box.
To issue dummy commands to a sensor and ignore the response: select data type
'DUMMY _COMMAND'. All commands with a data type other than dummy command. will
count towards the number of parameters/samples taken during a sample cycle.
page18of 23
MA213
V
1_10/06/2019_JI
