990XCP98000 SQUARE D, 990XCP98000 Datasheet - Page 321

• Manufacturer Part Number: 990XCP98000
• Description: QUANTUM CPU BATTERY FOR S
• Manufacturer: SQUARE D

Specifications of 990XCP98000

• Rohs Compliant: YES
• Battery Capacity: 1800mAh
• Battery Technology: Lithium
• Battery Voltage: 3V
• Battery Terminals: Connector
• Weight: 0.12lb

Functions
(continued)
Modicon
automation platform
Unity Pro
The user can create his own function blocks for specific application requirements on
Modicon M340, Atrium, Premium
Once created and saved in the library, these user function blocks can be reused as
easily as EFBs (Elementary Function Blocks).
These user function blocks can be used to structure an application. They are used
when a program sequence is repeated several times in the application or for fixing
a standard programming routine. They can be read-only protected or read/write-
protected. They can be exported to other Unity Pro applications.
Using a DFB function block in one or more applications:
b
b
b
identified in the data editor)
b
the application
A DFB function block is set up in several phases:
b
public and private internal variables) and a comment to it via the data editor.
b
languages selected according to requirements: Structured Text, Instruction List,
Ladder or Function Block Diagram (ST, IL, LD or FBD).
b
b
function is called in the program editor.
b
Function Block). (The instance can be created from within the program.)
Inputs
Outputs
Inputs/outputs
Public internal variables
Private internal variables
Comment
Program sections
(1) The maximum cumulative total of inputs and inputs/outputs is 32.
(2) The maximum cumulative total of outputs and inputs/outputs is 32.
(3) For Premium processors, see page 6/36 and 6/37. Characteristics, memory capacity,
DFB user function blocks
Main characteristics
Simplifies program design and entry
Improves program readability and understanding
Facilitates program debugging (variables handled by the DFB block function are
Enables the use of private variables specific to the DFBs, that are independent of
The DFB is designed by assigning a name, a set of parameters (inputs, outputs,
The code is created in one or more sections of the program, with the following
The DFB may be stored in a library with an associated version number.
A DFB instance is created in the data editor or when the
This instance is used in the program in the same way as an EFB (Elementary
maximum size of object areas, unlocated internal data and DFB and EFB function blocks.
™
software
®
Quantum
32 max. (1)
32 max. (2)
32 max. (1) (2)
Unlimited (3), can be accessed via the application program
Unlimited (3), cannot be accessed via the application program
1024 characters max.
Unlimited, each section can be programmed independently in
one of the 4 languages (IL, ST, LD and FBD).
™
and Quantum platforms using Unity Pro software.
™
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