BENTLY 2300/25-00開關(guān)量輸出模塊邏輯地也叫機(jī)器邏輯地、主機(jī)電源地，是計(jì)算機(jī)內(nèi)部的邏輯電平負(fù)端公共地，也是+5V等的電源輸出地。如CPU的正負(fù)5伏、正負(fù)12伏的負(fù)端。需要接入公共接地極。
2.3屏蔽地（AG，Analog Grounding）
也叫模擬地，它可以把現(xiàn)場(chǎng)信號(hào)傳輸時(shí)所受到的干擾屏蔽掉，以提高信號(hào)精度。DCS系統(tǒng)中信號(hào)電纜的屏蔽層應(yīng)做屏蔽接地。線纜屏蔽層必須一端接地，防止形成閉合回路干擾。鎧裝電纜的金屬鎧不應(yīng)作為屏蔽保護(hù)接地，必須是銅絲網(wǎng)或鍍鋁屏蔽層接地。接入公共接地極。
2.4本安地
應(yīng)獨(dú)立設(shè)置接地系統(tǒng)，接地電阻≤4Ω。本安地的接地系統(tǒng)應(yīng)保持獨(dú)立，與廠區(qū)電氣地網(wǎng)或其它儀表系統(tǒng)接地網(wǎng)的距離應(yīng)在5m以上。
三、DCS系統(tǒng)接地方式
1、S7-1200 CPU 從固件版本V4.1起開始支持組態(tài)控制功能，使模塊的組態(tài)和安裝更加靈活。
2、設(shè)DCS系統(tǒng)專用獨(dú)立的接地網(wǎng)；
3、設(shè)DCS專用接地網(wǎng)，經(jīng)接地線、再接至電氣接地網(wǎng)。Logically
Also called machine logic ground and host power ground, it is the common ground of the negative terminal of the logic level inside the computer and also the power output ground of+5V, etc. For example, the negative end of the CPU with positive and negative 5V and positive and negative 12V. It is required to connect to the common grounding electrode.
2.3 Shielding (AG, Analog Grounding)
Also called analog ground, it can shield the interference received during the field signal transmission to improve the signal accuracy. Shielding layer of signal cable in DCS system shall be grounded. One end of the cable shielding layer must be grounded to prevent closed loop interference. The metal armouring of armored cables shall not be used as shielding protection grounding, but must be grounded with copper wire mesh or aluminized shielding layer. Connect to the common grounding electrode.
2.4 Intrinsically safe place
The grounding system shall be set independently, with the grounding resistance ≤ 4 Ω. The grounding system of intrinsically safe grounding shall be independent, and the distance from the electrical grounding grid or other instrument system grounding grid in the plant area shall be more than 5m.
3、 DCS system grounding mode
1. The S7-1200 CPU supports the configuration control function since the firmware version V4.1, which makes the module configuration and installation more flexible.
2. Independent grounding grid dedicated for DCS system shall be set;
3. DCS special grounding grid is set, which is connected to the electrical grounding grid through the grounding wire.

主營(yíng)產(chǎn)品簡(jiǎn)介
專注于DCS、PLC、機(jī)器人控制系統(tǒng)、大型伺服四大系統(tǒng)領(lǐng)域。

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●使用前:

在操作和維護(hù)，安裝設(shè)備之前，請(qǐng)閱讀并嚴(yán)格遵守安全相關(guān)的信息。

Read and strictly follow safety-related information before operatingmaintainingand installing equipment.

●使用者要求:

必須從事安裝，組裝或維護(hù)設(shè)備等相關(guān)工控電氣機(jī)械以及其他相關(guān)技術(shù)的人員。

Must be engaged in the installation,assembly or maintenance of equipment and other related industriacontroeectrica machinery and other related technica personne.應(yīng)用范圍:

應(yīng)用于品牌本系列工業(yè)以及生產(chǎn)生活自動(dòng)化設(shè)備產(chǎn)品。

Used in the brand of this series of industriaand production automation eauipment products

適用于場(chǎng)景:系統(tǒng)集成，非標(biāo)定制，產(chǎn)線升級(jí)改造，原設(shè)備電氣替換等等。

Suitable for scenarios:system integration,non-standard customizationproduction line upgrading and transformation,electrical replacement of original equipment,etc.

●操作人員:

應(yīng)該由本品牌專業(yè)培訓(xùn)操作員來(lái)安裝、操作和維修設(shè)備。專業(yè)人員具有技術(shù)能力強(qiáng)，熟悉安全信息和安全實(shí)施:

熟悉設(shè)備的安裝加工、操作和維護(hù):熟悉處理所有的潛在危險(xiǎn)情況。

Equipment should be installed,operated and maintained by trained operators from the brand

●危險(xiǎn)情況

警告

.請(qǐng)注意使用人員的人身安全。

●除了產(chǎn)品特性以及功能，還需了解產(chǎn)品的使用壽命環(huán)境。

●充分學(xué)習(xí)產(chǎn)品使用手冊(cè)，否則非專業(yè)人員可能會(huì)造成人身危險(xiǎn)。

Study the product instruction manual thoroughlyotherwise it may cause personal danger to non-professionals.

●服務(wù)行業(yè)

適用水泥，木業(yè)，石業(yè)，橡膠，石油，化工，發(fā)電，環(huán)保，水處理，制冷，交通，鋼鐵，食品，飲料，船舶，制冷等行業(yè)

Applicable to cementwood,stone,rubber,petroleumchemical, power generation