990XCP98000 SQUARE D, 990XCP98000 Datasheet - Page 62

• 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

10
10
1
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Processor with data storage memory card in slot no. 0
Memory structure
Processor without PCMCIA memory card
Processor with PCMCIA memory card in slot no. 0
Internal RAM
PCMCIA card
(slot no. 0)
Data storage
PCMCIA card
(slot no. 0)
Internal RAM
2/6
Internal RAM
1
1
2
3
Located data
Global unlocated data
and DFBs
Program and symbols
Constants
Operating system (1)
Located data
Global unlocated data
DFB unlocated data
Program and symbols
Constants
Data storage
Located data
Global unlocated data
and DFBs
Program and symbols
Constants
Data storage
1
1
2
3
4
1
1
3
4
1
1
2
1
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3
Modicon
automation platform
Standard Unity
The application memory is divided into memory areas physically distributed in the
internal RAM memory and on 1 or 2 PCMCIA memory extension cards (only on
140 CPU 651 50/60, 140 CPU 652 60 and 140 CPU 671 60 processors):
1
2
3
4
According to the application memory size requirements, two memory structures are
possible depending on whether the Quantum processor (140 CPU 651 50/60,
140 CPU 652 60 or 140 CPU 671 60) has 0, 1 or 2 PCMCIA memory extension
cards:
b
processor's battery-backed internal RAM (2) (size varies according to the processor
model).
b
data. The PCMCIA memory card contains the program space (program, symbols
and constants areas). Certain types of PCMCIA memory card also take the data
storage area.
The presence of the symbols area with the program area is optional. The fact of
having the application symbols database on the PLC means that, when it is
connected to an empty programming PC, the elements needed to debug or upgrade
this PLC are available.
(1) Only for 140 CPU 311 10/434 12U processors.
(2) The internal RAM memory is backed up by a nickel cadmium battery. RAM memory cards are
Memory structure
Application in internal RAM: the application is completely loaded into the
Application in the PCMCIA card: the internal RAM is reserved for the application
Application data area always in internal RAM. This area is broken down into
2 types of data, to be used according to the user's habits and preferences:
v
%MW237) with which a symbol can be associated (for example, Counting rejects).
v
addressing removes the memory “mapping” management constraints because
the addresses are assigned automatically.
v
this object zone is only limited by the size of the internal RAM physical memory
available.
Application program and symbols area in the internal RAM or in the PCMCIA
memory card (descriptor, executable code for the tasks and application symbols
database).
Constants area in internal RAM or the PCMCIA memory card (constant words,
initial values and configuration).
Area for storing additional data that can be used for distributed applications to
store information such as production data and manufacturing recipes (only on
140 CPU 651 50/60, 140 CPU 652 60 and 140 CPU 671 60).
protected by a Lithium battery.
Global located data, corresponding to data defined by an address (for example
Unlocated data, corresponding to data defined only by a symbol. This type of
DFB unlocated data corresponding to DFB user function blocks. The size of
®
Quantum
™
CPUs
™