Real Time Automation, Inc.
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Configure Read and Write Data Groups
Follow these steps to manually configure read data groups.
5)
Select
View Read or View Write Data Groups
if not already selected.
6)
Select a
Point Type
for each Scan Line. Options include: Coil Status, Input Status, Input Registers,
and Holding Registers.
Note
: Input/Holding Registers have a data type associated with them.
a)
String Point Type- If the mating protocol supports strings, you may select string as a point type
in Modbus. With this point type, 2 characters will be packed into a single register and the first
register will be set aside for the length.
b)
EX: 4x Hold Reg (String) with a Starting Address of 1 for a length of 5 Registers.
This means that Register 1 will hold the length of the string and Registers 2-5 will hold the string
contents. This string can contain a max of 8 characters.
7)
Enter a
Starting Address
(1-based).
8)
Enter the
# of Points
to read or write. This will allocate the number of the data type selected.
