Allen-Bradley 1756-L61 ControlLogix 5561 Programming Manual page 28

Chapter 2 Organizing Tags
To expand a structure and display
its members, click the + sign.
To collapse a structure and
hide its members, click the –
sign.
Members of
running_seconds
26
The minimum memory allocation for a tag is four bytes. When you create a tag
that stores data that requires less than four bytes, the controller allocates four
bytes, but the data only fills the part it needs.
Data type Bits
31
BOOL Not used
SINT Not used
INT Not used
DINT
REAL
The COUNTER and TIMER data types are examples of commonly used
structures.
To copy data to a structure, use the COP instruction.
Refer to the Logix5000 Controllers General Instructions Reference
publication 1756-RM003.
Rockwell Automation Publication 1756-PM004D-EN-P - September 2012
16 15
38
-3.40282347E ...-1.17549435E
-38
1.17549435E
42365
8 7 1 0
0 or 1
-128...+127
-32,768...+32,767
-2,147,483,648...+2,147,483,647
-38
(negative values)
0
38
...3.40282347E (positive values)
COUNTER Structure
TIMER Structure
Data Type Members
Manual,