橫河ARS15M-110模塊ARS15M-110接線端子板 重量3公斤
Solid State Relay Boards (Voltage Input)
Models | ARS15M-1 (100 V AC), ARS15M-2 (220 V AC), ARS15M-3 (10 - 30 V DC) |
Usage | Solid State Relay Voltage Input, Module type (Single / Dual-redundant) |
Contact Points | 32-point |
Terminals for Field Device Connection | Pressure clamp terminals Cable speci?cations: see the table of terminal treatment for the pressure clamp terminal signal line and power line. |
Modules | ADV151 (DI: 32-point) + ATD5A (Terminal block) ADV161 (DI: 64-point) (*1) |
Signal Cables | AKB331 (for 32-point) AKB337 (for 64-point) |
Contact Input Signal | ARS15M-1 (100 V AC) ON signal: 90 to 140 V AC OFF signal: 45 V AC or less ARS15M-2 (220 V AC) ON signal: 180 to 250 V AC OFF signal: 45 V AC or less ARS15M-3 (10 - 30 V DC) ON signal: 10 to 30 V DC OFF signal: 1 V DC or less |
External Contact Rating | - |
Power Supply Voltage and Current Consumption of Internal Circuit (require external power supply) |
24 V DC Max. 1.0 A |
Power Supply for Field Device | - |
Insulation Resistance | At least 10 MΩ (500 V DC) |
Withstanding Voltage | Between 24 V power terminals and ?eld device terminals: 2 kV |
Ambient Temperature and Humidity | 0 to 50 °C, 10 to 90 %RH |
Standards | Safety standard [CSA], EMC standards [CE Marking], [C-Tick Marking], [KC Marking] |
Size | W: 436 mm x H: 125.4 mm |
Weight | 3.0 kg |
Mechanical Relay Boards (Contact Output)
Models | ARM55D | ARM55W ARM55T (with switch) | ARM55C |
Usage |
Mechanical Relay Dry Contact Output (“a” contact (NO)) (Single / Dual-redundant) | Mechanical Relay Wet Contact Output (Single / Dual-redundant) AUTO/OFF/ON switch (only for ARM55T) | Mechanical Relay Dry Contack Output (“a” contact or “b” contact (NO or NC)) (Single / Dual-redun or dant) (*6) |
Contact Points | 32-point | 32-point | 32-point |
Terminals for Field Device Connection |
M4 screws |
M4 screws | M3.5 screws (*5) (M4 in power input part) |
Modules | ADV551 (DO: 32-point) + ATD5A (Terminal block) ADV561 (DO: 64-point) (*1) | ADV551 (DO: 32-point) + ATD5A (Terminal block) ADV561 (DO: 64-point) (*1) | ADV551 (DO: 32-point) + ATD5A (Terminal block) ADV561 (DO: 64-point) (*1) |
Signal Cables | AKB331 (for 32-point) AKB337 (for 64-point) | AKB331 (for 32-point) AKB337 (for 64-point) | AKB331 (for 32-point) AKB337 (for 64-point) |
Maximum Load (*2) | 250 V AC: 2 A per point 30 V DC: 2 A per point 125 V DC: 0.1 A per point (*3) | 250 V AC: 0.6 A per point 30 V DC: 0.6 A per point 125 V DC: 0.1 A per point (*3) |
30 V DC: 1.5 A per point |
Minimum Load | 5 V, 10 mA | 5 V, 10 mA | 5 V, 10 mA |
Power Supply Voltage and Current Consumption of Internal Circuit (require external power supply) |
24 V DC Max. 0.65 A |
24 V DC Max. 0.65 A |
24 V DC Max. 0.85 A |
Power Supply for Field Device (require external power supply) |
- | Dual-line (supply power per 16- point) 250 V AC: Max. 9.6 A 30 V DC: Max. 9.6 A 125 V DC: Max. 1.6 A |
- |
Insulation Resistance | At least 10 MΩ (500 V DC) | At least 10 MΩ (500 V DC) | At least 10 MΩ (500 V DC) |
Withstanding Voltage | Between ?eld device terminals and cases: 2 kV Between 24 V power terminals and cases: 500 V Between 24 V power terminals and ?eld device terminals: 2 kV | Between ?eld device terminals and cases: 2 kV Between 24 V power terminals and cases: 500 V Between 24 V power terminals and ?eld device terminals: 2 kV | Between ?eld device terminals and cases: 2 kV Between 24 V power terminals and cases: 500 V Between 24 V power terminals and ?eld device terminals: 2 kV |
Ambient Temperature and Humidity |
0 to 50 °C, 10 to 90 %RH |
0 to 50 °C, 10 to 90 %RH |
0 to 50 °C, 10 to 90 %RH |
Standards | Safety Standard [CSA] (*3) EMC standards [CE Marking], [C-Tick Marking], [KC Marking] | Safety Standard [CSA] (*3) EMC standards [CE Marking], [C-Tick Marking], [KC Marking] | EMC standards [CE Marking], [C-Tick Marking], [KC Marking] (*4) |
Size | W: 482.6 mm x H: 132.5 mm (3U) | W: 482.6 mm x H: 177 mm (4U) | W: 482.6 mm x H: 132.5 mm (3U) |
Weight | 2.2 kg | 2.6 kg | 2.2 kg |
集散控制系統(tǒng)(DCS)簡介
DCS,即所謂的分布式控制系統(tǒng),或在有些資料中稱之為集散系統(tǒng),是相對于集中式控制系統(tǒng)而言的一種新型計算機控制系統(tǒng),它是在集中式控制系統(tǒng)的基礎(chǔ)上發(fā)展、演變而來的。在系統(tǒng)功能方面,DCS和集中式控制系統(tǒng)的區(qū)別不大,但在系統(tǒng)功能的實現(xiàn)方法上卻*不同。
首先,DCS的骨架——系統(tǒng)網(wǎng)絡(luò),它是DCS的基礎(chǔ)和核心。由于網(wǎng)絡(luò)對于DCS整個系統(tǒng)的實時性、可靠性和擴充性,起著決定性的作用,因此各廠家都在這方面進行了精心的設(shè)計。對于DCS的系統(tǒng)網(wǎng)絡(luò)來說,它必須滿足實時性的要求,即在確定的時間限度內(nèi)完成信息的傳送。這里所說的“確定”的時間限度,是指在無論何種情況下,信息傳送都能在這個時間限度內(nèi)完成,而這個時間限度則是根據(jù)被控制過程的實時性要求確定的。ARS15M-110模塊因此,衡量系統(tǒng)網(wǎng)絡(luò)性能的指標并不是網(wǎng)絡(luò)的速率,即通常所說的每秒比特數(shù)(bps),而是系統(tǒng)網(wǎng)絡(luò)的實時性,即能在多長的時間內(nèi)確保所需信息的傳輸完成。系統(tǒng)網(wǎng)絡(luò)還必須非常可靠,無論在任何情況下,網(wǎng)絡(luò)通信都不能中斷,因此多數(shù)廠家的DCS均采用雙總線、環(huán)形或雙重星形的網(wǎng)絡(luò)拓撲結(jié)構(gòu)。為了滿足系統(tǒng)擴充性的要求,系統(tǒng)網(wǎng)絡(luò)上可接入的zui大節(jié)點數(shù)量應(yīng)比實際使用的節(jié)點數(shù)量大若干倍。這樣,一方面可以隨時增加新的節(jié)點,另一方面也可以使系統(tǒng)網(wǎng)絡(luò)運行于較輕的通信負荷狀態(tài),以確保系統(tǒng)的實時性和可靠性。在系統(tǒng)實際運行過程中,各個節(jié)點的上網(wǎng)和下網(wǎng)是隨時可能發(fā)生的,特別是操作員站,這樣,網(wǎng)絡(luò)重構(gòu)會經(jīng)常進行,而這種操作不能影響系統(tǒng)的正常運行,因此,系統(tǒng)網(wǎng)絡(luò)應(yīng)該具有很強在線網(wǎng)絡(luò)重構(gòu)功能ARS15M-110模塊。
其次,這是一種*對現(xiàn)場I/O處理并實現(xiàn)直接數(shù)字控制(DOS)功能的網(wǎng)絡(luò)節(jié)點。一般一套DCS中要設(shè)置現(xiàn)場I/O控制站,用以分擔整個系統(tǒng)的I/O和控制功能。這樣既可以避免由于一個站點失效造成整個系統(tǒng)的失效,提高系統(tǒng)可靠性,也可以使各站點分擔數(shù)據(jù)采集和控制功能,有利于提高整個系統(tǒng)的性能。DCS的操作員站是處理一切與運行操作有關(guān)的人機界面(HMI-Human Machine Interface或operator interface)功能的網(wǎng)絡(luò)節(jié)點。
系統(tǒng)網(wǎng)絡(luò)是DCS的工程師站,ARS15M-110模塊它是對DCS進行離線的配置、組態(tài)工作和在線的系統(tǒng)監(jiān)督、控制、維護的網(wǎng)絡(luò)節(jié)點,其主要功能是提供對DCS進行組態(tài),配置工作的工具軟件(即組態(tài)軟件),并在DCS在線運行時實時地監(jiān)視DCS網(wǎng)絡(luò)上各個節(jié)點的運行情況,使系統(tǒng)工程師可以通過工程師站及時調(diào)整系統(tǒng)配置及一些系統(tǒng)參數(shù)的設(shè)定,使DCS隨時處在*的工作狀態(tài)之下。與集中式控制系統(tǒng)不同,所有的DCS都要求有系統(tǒng)組態(tài)功能,可以說,沒有系統(tǒng)組態(tài)功能的系統(tǒng)就不能稱其為DCS。
DCS自1975年問世以來,已經(jīng)經(jīng)歷了二十多年的發(fā)展歷程。在這二十多年中,DCS雖然在系統(tǒng)的體系結(jié)構(gòu)上沒有發(fā)生重大改變,但是經(jīng)過不斷的發(fā)展和完善,其功能和性能都得到了巨大的提高。總的來說,DCS正在向著更加開放,更加標準化,更加產(chǎn)品化的方向發(fā)展。