| 詳細(xì)參數(shù) | |||
|---|---|---|---|
| 品牌 | METSO | 型號(hào) | DPU-MR |
| 結(jié)構(gòu)形式 | 模塊式 | 安裝方式 | 控制室安裝 |
| LD指令處理器 | 硬PLC | 功能 | 分布式處理單元 |
| 工作電壓 | 電源組24VDC | 數(shù)據(jù)容量 | 480KB |
| 產(chǎn)品認(rèn)證 | EU | 環(huán)境溫度 | -25--,75°C |
| 環(huán)境濕度 | 5至95% | 加工定制 | 否 |
| 重量 | 0.9公斤 | ||
METSO DPU-MR 分布式處理單元
(1)來(lái)自空間的輻射干擾
METSO DPU-MR空間的輻射電磁場(chǎng)（EMI）主要是由電力網(wǎng)絡(luò)、電氣設(shè)備的暫態(tài)過(guò)程、雷電、無(wú)線電廣播、電視、雷達(dá)、高頻感應(yīng)加熱設(shè)備等產(chǎn)生的，通常稱(chēng)為輻射干擾，其分布極為復(fù)雜。若PLC系統(tǒng)置于所射頻場(chǎng)內(nèi)，就回收到輻射干擾，其影響主要通過(guò)兩條路徑；一是直接對(duì)PLC內(nèi)部的輻射，由電路感應(yīng)產(chǎn)生干擾；而是對(duì)PLC通信內(nèi)網(wǎng)絡(luò)的輻射，由通信線路的感應(yīng)引入干擾。輻射干擾與現(xiàn)場(chǎng)設(shè)備布置及設(shè)備所產(chǎn)生的電磁場(chǎng)大小，特別是頻率有關(guān)，一般通過(guò)設(shè)置屏蔽電纜和PLC局部屏蔽及高壓泄放元件進(jìn)行保護(hù)。
(2)來(lái)自系統(tǒng)外引線的干擾
METSO DPU-MR主要通過(guò)電源和信號(hào)線引入，通常稱(chēng)為傳導(dǎo)干擾。這種干擾在我國(guó)工業(yè)現(xiàn)場(chǎng)較嚴(yán)重。
The radiated electromagnetic field (EMI) in Metso dpu-mr{space is mainly generated by the transient process of power network and electrical equipment, lightning, radio broadcasting, bevision, radar, high-frequency induction heating equipment, etc. it is usually called radiated interference, and its distribution is very complex. If the PLC system is placed in the RF field, the radiation interference will be recovered, and its influence mainly passes through two paths; First, the radiation inside the PLC is directly interfered by the circuit induction; Instead, it radiates the network in PLC communication and introduces interference by the induction of communication line. Radiation interference is related to the layout of field equipment and the size of electromagnetic field generated by the equipment, especially the frequency. Generally, it is protected by setting shielded cables, PLC local shielding and high-voltage relief elements.Metso dpu-mr # is mainly introduced through power supply and signal lines, which is usually called conducted interference. This kind of interference is more serious in industrial sites in China.
ABB KUC711AE 3BHB004661R0001
ABB 07KT98 GJR5253100R0278
ABB 07KT98 GJR5253100R4278
ABB 07KT98C GJR5253100R028
ABB 07KT97 GJR5253000R4270
ABB 5SHY3545L0016 3BHB019719R0101 GVC736BE101 5SXE06-0160
GE IC698CPE020
METSO IOP331
METSO DPU-MR
METSO IOP345
METSO PDP401
METSO PDP601
METSO IOP303
METSO IOP341
METSO IOP304
METSO IOP302
METSO IOP353
METSO IOP111
METSO PDP403
METSO IOP320
