| 詳細(xì)參數(shù) | |||
|---|---|---|---|
| 品牌 | foxboro | 型號 | FCP270P0917YZ |
| 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 | I/O點數(shù) | 4 |
| 功能 | 現(xiàn)場控制處理器 | 工作電壓 | 24Vdc典型值 |
| 數(shù)據(jù)容量 | 16MB | 產(chǎn)品認(rèn)證 | CE |
| 環(huán)境溫度 | 0至,60°C | 加工定制 | 否 |
| 重量 | 0.6公斤 | 產(chǎn)地 | 美國 |
| 外形尺寸 | 14.7cmx5.15cmx11.4cm | ||
FOXBORO FCP270 P0917YZ 現(xiàn)場控制處理器
制造商 : Foxboro
產(chǎn)品編號：P0917YZ
產(chǎn)品類型 : 現(xiàn)場控制處理器 270 (FCP270)
內(nèi)存大?。?6 MB SDRAM 32 MB 閃存
輸入電壓（冗余電壓）：24 V dc 典型值
消耗（每個非容錯模塊）：8.5 W
工作溫度：0 至 +60°C（+32 至 +140°F）
配置：單處理器模塊。容錯版本由兩個處理器模塊組成，帶有集成到基板的互連容錯連接器。
尺寸（長 x 寬 x 高）：14.7cm x 5.15cm x 11.4cm
重量 : 0.6 公斤
The term “l(fā)oop” can refer to the entire “control loop” from primary element (sensor) through the transmitter, and controller, to the valve ber, and the final control element (valve).
The term “l(fā)oop” can also refer to a “current loop” which is the 4-20 mA circuit in series from the current generator through the loads and back. “Loop check” (“l(fā)oop test ”) refers to checking of a 4- 20 mA loop to ensure it functions correctly.This tutorial explains the common principles of loop checking as they apply to various kinds of Smart devices.
The detail procedure varies slightly depending on the manufacturer. Refer to the device instruction manual. But once the common principles in this tutorial are understood, the product manual becomes easier to understand.The major commissioning difference between 4-20 mA/HART and Fieldbus is that 4-20 mA/HART requires five point loop check, but Fieldbus, PROFIBUS, and WirelessHART do not.
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