横河ARS15B-500端子板ARS15B-500接线端子板 重量2.5公斤
Solid State Relay Boards (Contact Input)
Models | ARS15B-5 (48 V DC), ARS15B-6 (110 V DC) |
Usage | Solid State Relay Contact Input (Single / Dual-redundant) |
Contact Points | 32-point |
Terminals for Field Device Connection | M4 screws |
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 | ON signal: 200 Ω or less OFF signal: At least 200 kΩ |
External Contact Rating | ARS15B-5 (48 V DC): At least 60 V DC, 20 mA ARS15B-6 (110 V DC): At least 140 V DC, 20 mA |
Power Supply Voltage and Current Consumption of Internal Circuit (require external power supply) |
24 V DC Max. 0.32 A |
Power Supply for Field Device (require external power supply) | Dual-line (supply power per 32-point) ARS15B-5 (48 V DC): 48 V DC; Max. 0.5 A per one line ARS15B-6 (110 V DC): 110 V DC; Max. 0.4 A per one line |
Insulation Resistance | At least 10 MΩ (500 V DC) |
Withstanding Voltage | Between field device terminals and cases: 2 kV Between 24 V power terminals and cases: 500 V Between 24 V power terminals and field device terminals: 2 kV |
Ambient Temperature and Humidity | 0 to 50 °C, 10 to 90 %RH |
Standards | Safety standard [CSA] (*2), EMC standards [CE Marking], [C-Tick Marking], [KC Marking] |
Size | W: 482.6 mm x H: 132.5 mm (3U) |
Weight | 2.5 kg |
*1: Two sets of relay board (ARS15B-5, or ARS15B-6) and two sets of signal cable (AKB337) are required for one ADV161.
*2: ARS15B-5 does not conform to Safety Standard [CSA].
Relay Boards Detail Speci?cations
Mechanical Relay Boards (Contact Input)
Model | ARM15A |
Usage | Mechanical Relay Contact Input (Single / Dual-redundant) |
Contact Points | 32-point |
Terminals for Field Device Connection | M4 screws |
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 | ON signal: 150 Ω or less OFF signal: At least 200 kΩ |
External Contact Rating (Minimum Load) | 24 V DC, 13 mA (*3) |
Power Supply Voltage and Current Consumption of Internal Circuit (require external power supply) |
24 V DC Max. 0.32 A |
Power Supply for Field Device (require external power supply) | Dual-line (supply power per 16-point) 24 V DC: Max. 0.3 A per one line |
Insulation Resistance | At least 10 MΩ (500 V DC) |
Withstanding Voltage | Between ?eld device terminals and cases: 1.5 kV Between 24 V power terminals and cases: 500 V Between 24 V power terminals and ?eld device terminals: 1.5 kV |
Ambient Temperature and Humidity | 0 to 50 °C, 10 to 90 %RH |
Standards | EMC standards [CE Marking], [C-Tick Marking], [KC Marking] (*2) |
Size | W: 482.6 mm x H: 132.5 mm (3U) |
Weight | 2.2 kg |
*1: Two sets of relay board (ARM15A) and two sets of signal cable (AKB337) are required for one ADV161.
*2: ARM15A does not conform to Safety Standard [CSA].
*3: It is voltage/current that ARM15A applies to the external contact power supply.
ARS15B-500接线端子板
DCS自动化控制系统
集散控制系统(DCS)简介
DCS,即所谓的分布式控制系统,或在有些资料中称之为集散系统,是相对于集中式控制系统而言的一种新型计算机控制系统,它是在集中式控制系统的基础上发展、演变而来的。在系统功能方面,DCS和集中式控制系统的区别不大,但在系统功能的实现方法上却*不同。
首先,DCS的骨架——系统网络,它是DCS的基础和核心。由于网络对于DCS整个系统的实时性、可靠性和扩充性,起着决定性的作用,因此各厂家都在这方面进行了精心的设计。对于DCS的系统网络来说,它必须满足实时性的要求,即在确定的时间限度内完成信息的传送。这里所说的“确定”的时间限度,是指在无论何种情况下,信息传送都能在这个时间限度内完成,而这个时间限度则是根据被控制过程的实时性要求确定的。ARS15B-500接线端子板
因此,衡量系统网络性能的指标并不是网络的速率,即通常所说的每秒比特数(bps),而是系统网络的实时性,即能在多长的时间内确保所需信息的传输完成。系统网络还必须非常可靠,无论在任何情况下,网络通信都不能中断,因此多数厂家的DCS均采用双总线、环形或双重星形的网络拓扑结构。为了满足系统扩充性的要求,系统网络上可接入的zui大节点数量应比实际使用的节点数量大若干倍。这样,一方面可以随时增加新的节点,另一方面也可以使系统网络运行于较轻的通信负荷状态,以确保系统的实时性和可靠性。在系统实际运行过程中,各个节点的上网和下网是随时可能发生的,特别是操作员站,这样,网络重构会经常进行,而这种操作不能影响系统的正常运行,因此,系统网络应该具有很强在线网络重构功能。