Emerson Process Management 3-9000-522 Manual Do Utilizador

MODBUS TEST 

10-9

MON2000

JULY 2010

 Use Single Data Type

Note that the requested number of registers 

cannot exceed the amount contained by the 

selected message block but you can retrieve 

a partial block. You cannot cross a message 

block boundary.
Also note that in Standard Modbus mode 

each register is 16 bits. Therefore, integers 

(

SHORT

) consist of 1 register while floats 

(

FLOAT

) and long integers (

LONG

) consist of 

2 registers.

5. Type the desired repeat count (how many 

times WinMB will read or set the specified 

registers before ceasing transmission) in the 

Repeat data box.
You can repeat the poll from 1 to 9999 

times. A Repeat value of “–1” produces an 

infinite polling loop that can be terminated 
by clicking the 

 button.

Use this function to assign a data type to a 

group of registers you will read or edit. 

To poll a group of registers with the same user-

defined data type,

1. Follow Steps 1 through 5 in 

.

2. Click the Use <Type> to decode registers 

radio button to choose this option. 

3. Use the Data Type pull-down menu to 

assign a data type to the selected registers 

(