DCS多層分級控制系統(tǒng)
DCS的基本設(shè)計(jì)思想是采用控制分散、操作和管理集中的思路，實(shí)現(xiàn)多層分級控制和合作的結(jié)構(gòu)。目前，主要應(yīng)用在冶金、電力和石化等領(lǐng)域。
DCS 是實(shí)現(xiàn)多層分級控制的系統(tǒng)，在使用的過程中具有兩個(gè)基本的分級環(huán)節(jié)：現(xiàn)場控制單元和操作站。
DCS基本分級環(huán)節(jié)
● 現(xiàn)場控制單元：
指遠(yuǎn)離控制中心而在現(xiàn)場附近使用的控制系統(tǒng)，可根據(jù)DCS本身機(jī)構(gòu)實(shí)現(xiàn)對現(xiàn)場的監(jiān)控和控制，F(xiàn)場控制單元的使用需要準(zhǔn)備不同的設(shè)備，如配置插件，即根據(jù)系統(tǒng)的要求配置相應(yīng)的中央處理器插件、電源插件和通信插件等，為后期的分級控制奠定基礎(chǔ)；
冗余配置是分級控制系統(tǒng)中重要的環(huán)節(jié)之一，在配置的過程中要對主機(jī)插件、電源插件和通信插件等實(shí)現(xiàn)冗余配置；實(shí)現(xiàn)隨現(xiàn)場的分級控制和監(jiān)測需要對不同的硬件添加DCS，確保分級控制的可靠性。
● 操作站：
操作站中記錄并顯示控制系統(tǒng)中的不同數(shù)據(jù)，是展示人機(jī)交互的場所，常用的操作站中包括系主機(jī)控制、顯示設(shè)備和鍵盤輸入設(shè)備等，是主要使用人工操作記錄和反饋的場所，主要實(shí)現(xiàn)顯示不同數(shù)據(jù)、報(bào)警和操作等多種重要功能。
ALLEN BRADLEY
1745-LP153
10-30VDC SINK OUT, 12 RELAY OUT, AC PWR,
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1745-LP154
10-30 VDC SINK IN, 10 TRANS & 2 RELAY OUT, 18-30 VDC PWR,
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1745-LP156
10-30VDC SOURCING IN, 12 RELAY OUT AC PWR
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1745-LP157
PROCESSOR MODULE SLC150
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1745-M1
EEPROM MEMORY MODULE
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1745-PCC
PERSONAL COMPUTER INTERFACE CONVERTER,
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1745-PCK
INTERFACE KIT
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1745-PCP
POWER SUPPLY
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1745-PT1
POCKET PROGRAMMER & CABLE
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1745-R1
REPLACEMENT RELAY BOARD
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1745-R2
REPLACEMENT RELAY BOARD
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1745-R3
REPLACEMENT RELAY BOARD
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1745-TCAT
TIMER COUNTER ACCESS TERMINAL
1746
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1746-A10
10 SLOT CHASSIS-MOD HDWR STYLE
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1746-A13
13 SLOT RACK MOD HDWR STYLE
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1746-A2
2 SLOT CHASSIS, MOD HDWR STYLE
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1746-A4
4 SLOT CHASSIS, MOD HDWR STYLE
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1746-A7
7 SLOT CHASSIS, MOD HDWR STYLE
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1746-BAS
BASIC MODULE FOR PROGRAMMABLE CONTROLLER
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1746-BAS-T
BASIC MODULE FOR PROGRAMMABLE CONTROLLER
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1746-BLM
BLOW MOLDING MODULE
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1746-BTM
BARREL TEMPERATURE MODULE
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1746-C16
CHASSIS INTERCONNECT CABLE
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1746-C7
6-INCH RACK INTERCONNECT CABLE
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1746-C9
36" RACK INTERCONNECT CABLE
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1746-FI041
ANALOG INPUT MODULE CURRENT OR VOLTAGE SELECTABLE
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1746-FI04V
/O MODULE W/2 FAST ANALOG IN 2 ANALOG VOLTAGE OUT
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1746-HCA
CABLE
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1746-HCDOC
CABLE
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1746-HHDOC
CABLE
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1746-HHTOVR
CABLE
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1746-HS
MOTION CONTROL MODULE IMC110
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1746-HSCE
HIGH SPEED COUNTER ENCODER FOR PROGRAMMABLE CTRLR
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1746-HSCE2
MULTI CHANNEL HIGH SPEED COUNTER MODULE
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1746-HSRV
AXIS CONTROL
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1746-HSTP1
AXIS CONTROL SINGLE AXIS
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1746-HT
TERMINAL PANEL
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1746-IA16
AC INPUT MODULE(16)INPUT-100-120V
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1746-IA4
AC INPUT MODULE (4) INPUT
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1746-IA8
AC INPUT MODULE (8) INPUT-100/120V
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1746-IB16
DC INPUT MODULE (16) INPUT, SINK 24V
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1746-IB32
DC INPUT MODULE (32) INPUT, SINK 24V
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1746-IB8
DC INPUT MODULE (8) INPUT, SINK 24V
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1746-IC16
30-60 VDC INPUT 16PTS
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1746-IG16
DC INPUT MODULE (16) INPUT (TTL) (SOURCE)
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1746-IH16
90-146 VDC ISOLATED INPUT 16PTS
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1746-IM16
159-265 VAC ISOLATED INPUT
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1746-IM4
AC INPUT MODULE
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1746-IM8
AC INPUT MODULE
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1746-IN16
INPUT MODULE (16) INPUT 24V AC/DC
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1746-INT4
AC INPUT MODULE
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1746-IO12
COMBO MOD (6) IN 10/120V AC & (6) OUT RELAY
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1746-IO12DC
COMBO MOD (6) IN 10/120V AC & (6) OUT RELAY
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1746-IO4
COMBO MOD (6) IN 10/120V AC & (6) OUT RELAY
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1746-IO8
COMBO MOD (6) IN 10/120V AC & (6) OUT RELAY
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1746-ITB16
FAST RESPONSE DC SINKING INPUT CARD
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1746-ITV16
FAST RESPONSE DC SINKING INPUT CARD
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1746-IV16
INPUT MODULE (16) INPUT 24V AC/DC
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1746-IV32
DC INPUT MODULE (32) INPUTS SOURCE 24 V DC
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1746-IV8
DC INPUT MODULE (32) INPUTS SOURCE 24 V DC
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1746-MPM
MOLD PRESSURE MODULE
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1746-N2
SLOT FILLER
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1746-N3
SLOT FILLER
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1746-NI16I
ANALOG INPUT MODULE
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1746-NI16V
ANALOG INPUT MODULE
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1746-NI4
ANALOG INPUT
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1746-NI8
ANALOG INPUT
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1746-NIO4I
ANALOG INPUT
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1746-NO4I
ANALOG CURRENT OUTPUT, 4 PT
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1746-NI04V
SLC500 ANALOG I/O
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