Industrial
Electronic Devices
ADFweb.com S.r.l.
User Manual
PROFINET / M-Bus Master
Document code: MN67078_ENG Revision 1.100 Page 19 of 40
SECTION VARIABLES (BY POSITION):
Selecting the desired node it is possible to add a variable.
In order to create a new variable it is necessary to fill
these items:
To use the created variable the field “
Enable
Variable
” must be checked. If you have created a
variable but for the moment it is unused it is
possible to uncheck the field “Enable Variable”
without delete it;
In the field “
Description
” it is possible to write a
description of the variable (it isn’t a necessary
information, it helps the readability of the tree of
network);
The field “
Dimension
” is used to select the
dimension of the variable (8, 16, 24, 32, 32 real,
48, 64 bit, Variable Length);
In the field “
Length(Variable Len)
” insert the
length of the data in the case of the dimension is
“Variable Length”;
If the field “
Scale
” is checked, the converter
reserves a bytes on PROFINET array with Scale
value (see page 26 for more info);
If the field “
From BCD to Integer
” is checked the
converter converts the BCD value of variable in
Integer format. This happens only if the variable is
in BCD format; if it isn’t nothing changes.
If the field “
SWAP
” is checked, the bytes of data of that variable are swapped. Example: from 0x01020304 to 0x04030201;
If the field “
Use Six Bytes for the Time Point
” and the “Type of Data” is “Time Point”, it is possible to read the information of Year,
Month, Day, Hour, Minutes, Seconds on six consecutive positions of the array without decoding (if not selected, the values are the
same of the reply of the slave device, so coded with a determinate structure (page 27 for more information)).
If the field “
Force Integer 32
” is checked the converter maps the variables with a dimension <32 bit in 4 bytes of the PROFINET
array as Int32 value.
In the field “
Position
” the position of the variable inside the M-Bus frame sent by the M-Bus slave is defined.
