990XCP98000 SQUARE D, 990XCP98000 Datasheet - Page 286
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990XCP98000
Manufacturer Part Number
990XCP98000
Description
QUANTUM CPU BATTERY FOR S
Manufacturer
SQUARE D
Datasheet
1.990XCP98000.pdf
(463 pages)
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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Modicon
automation platform
Modbus Plus
Quantum 140 CPUs contain a Modbus Plus port, allowing high-speed point-to-point
communications with easy implementation designed to simplify data sharing
between nodes across a network. The Modbus Plus local area network facilitates
communications between CPUs, host computers and other data sources via
twisted-pair cable or optional fiber optic cable. Communications take place at a
speed of
1 Mbps.
Typical applications include interlocking on control networks, data acquisition,
uploading/downloading software, remote on-line programming, connecting to
operator interfaces and host computer data export. Modbus Plus is able to handle
communications for real-time systems such as I/O and drives.
A standard Modbus Plus network based on twisted-pair cable supports up to
32 nodes and can communicate over distances up to 450 m.
If an application requires more nodes or longer distances, an RR85 Modbus Plus
repeater placed between network connections allows 64 addresses over a distance
of up to 900 m. As many as three repeaters can be used, supporting distances of up
to 1800 m. The maximum number of network addresses supported is 64.
If an application requires more than 64 nodes, a BP85 Modbus Plus bridge can be
used to connect two Modbus Plus networks. Bridge devices can be used to
interconnect network segments to achieve maximum performance.
When a Modbus device, such as a programming terminal, operator interface or
third-party computer, requires access to data from a Modbus Plus network, a BM85
Modbus Plus bridge must be used. The BM85 has four Modbus-compatible RS 232
serial ports, enabling a Modbus master or Modbus slave to connect to a Modbus
Plus network. The bridge connections allow data exchanges between Modbus
devices and with the entire Modbus Plus network.
Presentation
Topology
Network A
Network B
Programming PC
Terminal
Node
Node
Node
32 nodes
450 m
®
™
Quantum
network
RR85
1800 m, 64 nodes max.
Modbus
device
BP85
BM85
RR85
™
Modbus
Node
device
Node
Node
RR85
Terminal
Modbus
Node
device
Node
Node
0
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