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Allen Bradley 1757-FIMRTP Fieldbus Interface Module with 24V DC Input and Dual-ring Redundancy
Allen Bradley 1757-FIMRTP Fieldbus Interface Module with 24V DC Input and Dual-ring Redundancy
24V DC Input Fieldbus Interface Module
Dual-ring Redundancy 1757-FIMRTP
64 Devices Max Nodes Allen Bradley Module
원래 장소:
미국
브랜드 이름:
Allen Bradley
모델 번호:
1757-FIMRTP
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제품 상세정보
제품 모델:
1757-FIMRTP
입력 전압:
24V DC(±10%)
전력 소비:
8W(일반)
격리:
1500V AC
커넥터:
RTP 네트워크용 BNC(동축) 2개
네트워크 토폴로지:
이중 링 중복성
네트워크당 최대 노드:
64개 장치
예상 배송 크기:
3.5x14x14.5cm
강조하다:
24V DC Input Fieldbus Interface Module
,Dual-ring Redundancy 1757-FIMRTP
,64 Devices Max Nodes Allen Bradley Module
지불과 운송 용어
최소 주문 수량
1
가격
66USD
포장 세부 사항
새로운 오리지널
배달 시간
2-3 영업일
지불 조건
티/티
공급 능력
재고 있음
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Allen Bradley 1757-FIMRTP Fieldbus Interface Module with 24V DC Input and Dual-ring Redundancy
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제품 설명
Allen Bradley 1757-FIMRTP Fieldbus Interface Module
Technical Specifications & Performance
| Question | Answer |
|---|---|
| Does the ±10% tolerance on the 24V DC input allow for direct connection to noisy plant-floor rails? | Negative. While the 1757-FIMRTP consumes a typical 8W, the ±10% window is narrow to protect the H1 segment's signal-to-noise ratio. Using a dedicated, regulated power supply is mandatory to prevent voltage ripples from destabilizing the fieldbus excitation, especially in high-EMI environments. |
| Why are 2x BNC coaxial connectors used instead of standard copper terminal blocks? | Impedance matching. The 5 Mbps link between the 1757-FIM and the RTP demands a shielded, constant-impedance path that standard twisted-pair cannot provide. Coaxial BNC ensures high-speed data integrity for the dynamic cache, preventing packet loss between the chassis and the DIN-rail termination. |
| How does the module react to a physical cable break in the ring topology? | The 1757-FIMRTP supports concurrent bi-directional transmission. Upon detecting a carrier loss on one BNC link, the hardware instantly switches to the secondary path. This "zero-millisecond" recovery ensures the 64-device payload remains online without triggering a controller major fault. |
| Can the 1757-FIMRTP realistically manage 64 devices on a single segment? | While the firmware supports 64 nodes, LAS (Link Active Scheduler) bandwidth is the real constraint. For mission-critical control loops, we recommend capping segments at 12-16 devices. Exceeding this often leads to "stale data" as the 5 Mbps link competes with acyclic client/server messaging for cycle time. |
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