Proliant System

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The term SCADA defines centralized systems which monitor and control sites, or complexes of systems distributed over considerable areas in other words anything between an industrial plant and a country. A majority of the control actions are executed automatically by Remote Terminal Units also known as RTUs"or by Programmable Logic Controllers also known as PLCs. Host control functions are normally restricted to basic overriding or supervisory level intervention. For instance, a PLC may control the flow of cooling water in a section of an industrial process, but the SCADA system may enable operators to alter the set points for the flow,and permit alarm conditions to be exhibited and recorded. The feedback control loop goes through the RTU or PLC, while the SCADA system monitors the complete operations of the loop.

A SCADA System is typically comprised of subsystems which include: A Human-Machine Interface or HMI which is the apparatus that presents process data to a human operator. In doing this, the human operator monitors and controls the process. A supervisory or computer system, which acquires data on the process and sends commands to the process. Remote Terminal Units or RTUs which connects to sensors in the process, converting sensor signals to digital data then sending digital data to the supervisory system. Programmable Logic Controller or PLCs which is used as field devices because they are more affordable, multi-purpose, flexible, and modifiable in comparison to special-purpose RTUs. Communication infrastructure which connects the supervisory system to the Remote Terminal Units.

There is some amount of bewilderment related to the differences between SCADA systems and Distributed control systems or DCS.

In general, a SCADA system normally refers to a system that coordinates, but does not actually control a set of processes in real time. The idea of real-time control is clouded in some way by newer telecommunications technology, permitting reliable, low latency, high speed communications over enormous areas. The disparities between SCADA and DCS are culturally determined and can generally be overlooked. As communication infrastructures with greater capacity are made available, the differences between SCADA and DCS will fail to be.

SCADA systems chiefly incorporate a distributed database which is principally referred to as a tag database. This database is made up of data elements called tags or points. A point is representative of a single input or output value monitored or controlled by the system. Points can either be soft or hard. A soft point is the result of logic and mathematical operations applied to other points while hard point is representative of an actual input or output within the system. Points are usually stored as value-timestamp pairs: a value, and the timestamp when it was recorded or calculated. A series of value-timestamp pairs will give the history of that point. It is also typical to store extra metadata with tags, inclusive of the path to a field device or PLC register, design time comments, and alarm information.

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Find Proliant System On eBay Below:

HP Proliant G5 System Motherbaord LGA 771 436526 001 013096 001 013097 000
HP Proliant G5 System Motherbaord LGA 771 436526 001 013096 001 013097 000
$27.95
409488 001 HP System Board for Proliant DL360 G4 SAS 408584 001
409488 001 HP System Board for Proliant DL360 G4 SAS 408584 001
$24.99
531221 001 595046 001 HP SYSTEM BOARD FOR PROLIANT WS460c G6 BLADE SERVER
531221 001 595046 001 HP SYSTEM BOARD FOR PROLIANT WS460c G6 BLADE SERVER
$36.00
HP System Board 715910 003 773064 001 For PROLIANT ML310e Gen8 V2
HP System Board 715910 003 773064 001 For PROLIANT ML310e Gen8 V2
$175.00
HP PROLIANT ML370 G5 SYSTEM BOARD 434719 001
HP PROLIANT ML370 G5 SYSTEM BOARD 434719 001
$45.00
HP 669290 001 System Board for ProLiant SL230s Gen8 + 2 Xeon E5 2630 LGA2011
HP 669290 001 System Board for ProLiant SL230s Gen8 + 2 Xeon E5 2630 LGA2011
$14.99
HP ProLiant BL460c Server Blade Chassis With System Motherboard 507778 B21
HP ProLiant BL460c Server Blade Chassis With System Motherboard 507778 B21
$120.99
743018 003 848082 001 743018 002 HP PROLIANT DL160 GEN9 G9 SYSTEM BOARD v3
743018 003 848082 001 743018 002 HP PROLIANT DL160 GEN9 G9 SYSTEM BOARD v3
$650.00
HP Proliant DL385 G5 Server System Board 449365 001 446771 001 Dual Socket
HP Proliant DL385 G5 Server System Board 449365 001 446771 001 Dual Socket
$49.99
HP 466590 001 531221 001 HP SYSTEM BOARD FOR PROLIANT BL460C
HP 466590 001 531221 001 HP SYSTEM BOARD FOR PROLIANT BL460C
$17.99
HP PROLIANT DL380E DL360E GEN 8 SYSTEM SERVER MOTHERBOARD 664705 002
HP PROLIANT DL380E DL360E GEN 8 SYSTEM SERVER MOTHERBOARD 664705 002
$161.99
419408 001 HP SYSTEM BOARD FOR HP Proliant DL320S SERVER
419408 001 HP SYSTEM BOARD FOR HP Proliant DL320S SERVER
$48.00
604047 001 590472 001 HP PROLIANT DL585 G7 PRIMARY PROCESSOR SYSTEM BOARD
604047 001 590472 001 HP PROLIANT DL585 G7 PRIMARY PROCESSOR SYSTEM BOARD
$99.00
604048 001 590473 001 HP PROLIANT DL585 G7 SECONDARY PROCESSOR SYSTEM BOARD
604048 001 590473 001 HP PROLIANT DL585 G7 SECONDARY PROCESSOR SYSTEM BOARD
$89.00
HPE Proliant DL360 DL380 Gen9 Mainboard Motherboard System Board 775400 001
HPE Proliant DL360 DL380 Gen9 Mainboard Motherboard System Board 775400 001
$679.21
Hp Proliant ML310e Gen8 G8 Motherboard Motherboard System Board 730279 001
Hp Proliant ML310e Gen8 G8 Motherboard Motherboard System Board 730279 001
$145.54
HPE Proliant BL460c Gen9 Motherboard Motherboard System Board 744409 001
HPE Proliant BL460c Gen9 Motherboard Motherboard System Board 744409 001
$679.21
HP 436526 001 013096 001 System Board ProLiant DL380 G5 Motherboard
HP 436526 001 013096 001 System Board ProLiant DL380 G5 Motherboard
$24.99
HP Proliant DL360 G4 ATX System Motherbaord Socket 940 432813 001
HP Proliant DL360 G4 ATX System Motherbaord Socket 940 432813 001
$19.95
HP MOTHERBOARD FOR HP PROLIANT ML150 G9 SYSTEM BOARD 806840 001
HP MOTHERBOARD FOR HP PROLIANT ML150 G9 SYSTEM BOARD 806840 001
$695.00
HP Proliant DL380 G7 System Board 599038 001
HP Proliant DL380 G7 System Board 599038 001
$114.99
HP PROLIANT DL360G5 SYSTEM BOARD 435949 001 FREE SHIPPING
HP PROLIANT DL360G5 SYSTEM BOARD 435949 001 FREE SHIPPING
$49.99
HP 650050 001 Dual Socket System Board For Proliant Sl250S Sl230S G8 Server
HP 650050 001 Dual Socket System Board For Proliant Sl250S Sl230S G8 Server
$189.00
779094 001 743018 002 848082 001 HP Proliant DL160 Generation 9 System Board
779094 001 743018 002 848082 001 HP Proliant DL160 Generation 9 System Board
$400.00
HP MOTHERBOARD FOR HP PROLIANT DL360E G8 DL380E G8 SYSTEM BOARD 647400 002
HP MOTHERBOARD FOR HP PROLIANT DL360E G8 DL380E G8 SYSTEM BOARD 647400 002
$145.00
HP 691271 001 Proliant DL385p Gen8 G8 System Board G34 Motherboard 622215 002
HP 691271 001 Proliant DL385p Gen8 G8 System Board G34 Motherboard 622215 002
$307.19
NEW HP COMPAQ PROLIANT DL580 G1 SYSTEM MOTHERBOARD 175563 001 NIB MINT
NEW HP COMPAQ PROLIANT DL580 G1 SYSTEM MOTHERBOARD 175563 001 NIB MINT
$64.99
847394 001 HP MOTHERBOARD FOR HPE PROLIANT DL120 G9  GEN9  SYSTEM BOARD
847394 001 HP MOTHERBOARD FOR HPE PROLIANT DL120 G9 GEN9 SYSTEM BOARD
$500.00
NEW BULK HP PROLIANT ML330 G6 SYSTEM BOARD 610523 001
NEW BULK HP PROLIANT ML330 G6 SYSTEM BOARD 610523 001
$75.00
HP 651907 001 ProLiant DL160 G6 Server System Board 593347 002
HP 651907 001 ProLiant DL160 G6 Server System Board 593347 002
$69.99
HP 737611 001 ProLiant DL360p Gen8 System Board Motherboard
HP 737611 001 ProLiant DL360p Gen8 System Board Motherboard
$325.00
536391 001 HP StorageWorks X1400 Proliant DL 320 G6 Motherboard System Board
536391 001 HP StorageWorks X1400 Proliant DL 320 G6 Motherboard System Board
$120.81


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