990XCP98000 SQUARE D, 990XCP98000 Datasheet - Page 32

• 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

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Ethernet/Modbus Plus
Only the S-MOVE function block is capable of reading in the
unrestricted memory area.
Memory structure
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Safety
S-MOVE
Unrestricted
Safety
(continued)
Monitoring
Modicon
automation platform
Safety CPUs
The Quantum Safety PLC memory is divided into a safety area and an unrestricted
area.
The safety memory area is write-protected. It is used to process data relating to
safety.
The unrestricted memory area is not write-protected, it is used to communicate with
external devices.
Values in this area cannot be manipulated directly, only via specific function blocks.
As far as slot A is concerned, PCMIA memory cards can be used in the same way
as with a standard PLC. They can contain applications, not data files, see
page1/25.
However, slot B cannot be used for safety projects.
The Quantum safety PLC has 2 specific operating modes:
b
b
This is the Quantum safety PLC's default operating mode in which the safety
functions are available to control the process.
This is a “restricted function” mode in which modification and maintenance activities
are prohibited.
Only stopping or starting the PLC, or placing it in maintenance mode, is authorized.
The Quantum safety PLC Maintenance mode is a temporary mode that is useful for
modifying the project, debugging and maintaining the application program.
Maintenance mode functions
When the Quantum safety PLC is running in maintenance mode, Unity Pro
offers the following functions:
b
b
b
stay forced.
b
the Quantum safety PLC must be active.
b
variables and the safety I/O.
b
nor any other PLCs, can write to it.
Safety memory
Specific operating modes
Safety mode
Maintenance mode
Safety mode
Application and PLC maintenance mode
Changes can be downloaded.
Safety variables can be assigned and forced: limited to EBOOL variables.
It is possible to switch to safety mode while forcing is in progress. Forced variables
Debugging with breakpoint, watchpoint and step-by-step is possible. However,
The animation tables and operator screens have write access to the safety
The safety memory is write-protected. This means that neither the HMI terminals,
®
Quantum
™
™
XLS