FOXBORO FBM218 通訊冗余輸出接口模塊
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FBM218是一款通訊冗余輸出接口模塊，主要用于FOXBORO HART通訊，實現冗余輸出功能。以下是關于FBM218的主要特點：
- 8個通道隔離輸出通道，每個通道提供以下輸出之一：標準4至20mA模擬輸出信號、數字HART頻移鍵控（FSK）信號疊加在4至20mA模擬輸出信號上。
- FBM級冗余設計，提供冗余功能，增強了系統的穩定性。
- FSK調制解調器專用于每個輸出通道，用于與HART現場設備的雙向數字通信。
- 支持現場設備與Foxboro DCS接口所需的HART通用接口。
- 模塊對提供FBM級冗余。
- 通道相互之間以及與地和模塊邏輯之間電流隔離（光學和變壓器隔離）。在隔離通道和大地（地）之間施加600 V交流電壓一分鐘后，模塊可以承受而不會損壞。
- 通過冗余的2 Mbps HDLC現場總線與其相關的FCM或FCP通信。
- 工作溫度范圍為-20至60℃。
FBM01 P0400DA 0-20MA Input 8AI
FBM02 P0400YC thermocouple/millivolt input 8AI
FBM03 P0400YD thermal resistance input (three wire/four wire system) 8AI
FBM04 P0400YE 0-20MA I/O 4AI/4AO
FBM05 P0400YF redundancy 0-20MA input/output 4AI/4AO
FBM06 P0400YG frequency input/0-20MA output 4PI/4AO
FBM07 P0400YH contact/DC voltage input 16DI
FBM08 DM400YJ (P0400YJ) 120VAC AC status input 16DI
FBM09 CM400YK (P0400YK) contact/DC voltage input/contact output 8DI/8DO
FBM10 DM400YL (P0400YL) 120VAC AC status input/contact output (2A) 8DI/8DO
FBM11 CM400YM (P0400YM) 240VAC AC status input/contact output (1A) 8DI/8DO
FBM12 CM400YN (P0400YN) contact/DC voltage input extension 16DI
FBM13 DM400YP (P0400YP) 120VAC AC status input extension 16DI
FBM14 CM400YQ (P0400YQ) contact/DC voltage input/contact output extension 8DI/8DO
FBM15 DM400YR (P0400YR) 120VAC AC status input/contact output extension (2A) 8DI/8DO
FBM16 CM400YS (P0400YS) 240VAC AC status input/contact output extension (1A) 8DI/8DO
FBM17 DM400YT (P0400YT) 0-10V DC voltage/contact input/output 4AI/2AO/4DI/4DO
FBM18 P0400YV transmitter input 8AI
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