| 詳細參數 | |||
|---|---|---|---|
| 品牌 | foxboro | 型號 | FCP270P0917YZ |
| 結構形式 | 模塊式 | 安裝方式 | 控制室安裝 |
| LD指令處理器 | 硬PLC | I/O點數 | 4 |
| 功能 | 現場控制處理器 | 工作電壓 | 24Vdc典型值 |
| 數據容量 | 16MB | 產品認證 | CE |
| 環(huán)境溫度 | 0至,60°C | 加工定制 | 否 |
| 重量 | 0.6公斤 | 產地 | 美國 |
| 外形尺寸 | 14.7cmx5.15cmx11.4cm | ||
FOXBORO FCP270 P0917YZ 現場控制處理器
制造商 : Foxboro
產品編號：P0917YZ
產品類型 : 現場控制處理器 270 (FCP270)
內存大?。?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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