HONEYWELL 51308371-175工控底板系統(tǒng)過(guò)大,伺服通信會(huì)存在嚴(yán)重的干擾,軟件也難以實(shí)現(xiàn)控制要求。面對(duì)這些問(wèn)題,SFAE工程師與松德項(xiàng)目組共同進(jìn)行技術(shù)攻關(guān),對(duì)實(shí)施方案進(jìn)行了周密、慎重的考慮,一遍遍調(diào)整電氣參數(shù)和程序,最后終于不負(fù)眾望,解決難題。調(diào)試之后設(shè)備第一次運(yùn)行,工作速度就達(dá)到了每分鐘120 m。而松德與客戶(hù)的設(shè)計(jì)方案中要求的工作速度為80 m/min,因?yàn)檫@個(gè)數(shù)值已經(jīng)很難實(shí)現(xiàn),所以SFAE的工作遠(yuǎn)遠(yuǎn)超出了松德與其客戶(hù)的預(yù)期。
HONEYWELL 51308371-175工控底板行業(yè)中采用的離線(xiàn)工藝,紙的張力控制很難在不同的工藝段復(fù)現(xiàn),導(dǎo)致橫切/模切精度、燙金套印精度不高,成品率較低,而通過(guò)連線(xiàn)工藝能平穩(wěn)控制整個(gè)系統(tǒng)中的張力,提高燙金的套印精度和橫切/模切的精度,而且連線(xiàn)工藝減少中間環(huán)節(jié)周轉(zhuǎn),降低損耗,提高效率。C平方轉(zhuǎn)移新工藝,在保持原有印刷效果的情況下避免了傳統(tǒng)工藝中鍍鋁層對(duì)環(huán)境的影響,客戶(hù)可以根據(jù)實(shí)際需求,靈活的組合搭配這個(gè)多功能平臺(tái),甚至可以將該系統(tǒng)當(dāng)做兩套設(shè)備同時(shí)使用。智能型多功能組合印刷機(jī)的成功推出將松德印刷技術(shù)提升到一個(gè)新的高度,隨著設(shè)備標(biāo)準(zhǔn)化的完成,智能型多功能組合印刷機(jī)能夠被廣泛應(yīng)用,滿(mǎn)足國(guó)內(nèi)用戶(hù)對(duì)于環(huán)保、成本、精度的各種需求。在行業(yè)中已有領(lǐng)先優(yōu)勢(shì)的松德不曾懈怠,而是沿著高速、寬幅、高精度、節(jié)能、環(huán)保和自動(dòng)化的方向,向“世界一流的凹版印刷機(jī)及成套設(shè)備專(zhuān)業(yè)生產(chǎn)商”的戰(zhàn)略目標(biāo)邁進(jìn)。印刷術(shù)作為中國(guó)的四大發(fā)明之一,至今已發(fā)展成為不可或缺的技術(shù)。文化和知識(shí)傳播的方便程度和廣度主要依賴(lài)于印刷業(yè)。隨著人們對(duì)書(shū)籍的需求和要求越來(lái)越高,印刷技術(shù)的工藝也越來(lái)復(fù)雜,效率也越來(lái)越高。曬版機(jī)作為傳統(tǒng)印刷工藝中的一環(huán),直接影響印刷的效果和質(zhì)量。曬版機(jī)控制系統(tǒng)對(duì)曬版機(jī)的正常工作具有重要的作用。目前,曬版機(jī)已成為高檔彩色印刷的必備品。基于和利時(shí)LM系列PLC的曬版機(jī)控制系統(tǒng),能夠?qū)癜鏅C(jī)抽真空時(shí)間和曝光時(shí)間進(jìn)行精確控制,使曬版機(jī)能夠高效率和高質(zhì)量地進(jìn)行曬版工作。2 曬版機(jī)控制系統(tǒng)硬件設(shè)計(jì)早期的曬版機(jī)控制系統(tǒng)為單板機(jī)控制系統(tǒng),參數(shù)的顯示和設(shè)置為7段LED數(shù)碼管和數(shù)字按鍵。由于單板機(jī)系統(tǒng)的故障率較高,參數(shù)設(shè)定復(fù)雜,顯示界面友好程度差等原因,所以采用PLC對(duì)控制系統(tǒng)進(jìn)行重新設(shè)計(jì)。PLC相比原來(lái)的單板機(jī)而言,配置靈活,編程簡(jiǎn)單,并且支持與HMI(Human Machine Interface,人機(jī)界面)進(jìn)行通訊連接,大大增強(qiáng)了對(duì)設(shè)備的監(jiān)控功能。
network managed Ethernet switches are described in detail below.
Disadvantages of unmanaged switch:
1. The non network management industrial switch has limited functions and is suitable for small networks.
2. ARP protection is not supported, and ARP attack is not a virus, so almost all anti-virus software have nothing to do with it; But it is better than a virus - because it can slow down communication, paralyze the network, and leak information.
3. Binding of MAC address is not supported.
4. VLAN division is not supported. If the end users connected on non managed switches are in the same broadcast domain, broadcast storms will break out, which cannot be protected and suppressed. Make the whole network congested, blocked and flooded, resulting in the paralysis of the whole network.
5. Flow based control is not supported.
6. The assembly is single and cannot be applied in large and medium-sized networks. There are great limitations on network upgrading and expansion.
Advantages of unmanaged switch:
1. The price is cheap and saves expenses.
2. The number of ports is dense.