Technical Specifications Module Type: Discrete Digital Input Module Channel Quantity: 16 digital input channels Input Signal: Dry‑contact / DC voltage discrete input Channel Isolation: Galvanic isolation per channel Communication: Redundant I/A fieldbus Operating Power: 24 VDC Operating Temperature: 0 °C to +60 °C Storage Temperature: ‑40 °C to +85 °C Relative Humidity: 5%‑95%, non‑condensing Mounting: DIN‑rail baseplate installation Certifications: CE industrial digital I/O module compliance
Functional Features Sixteen‑channel isolated digital switch‑value signal acquisition. Configurable input filter time suppresses field signal jitter and interference pulse. Detects channel circuit abnormal state and uploads diagnostic information. Redundant fieldbus communication ensures reliable data transmission. Hot‑swappable module design for convenient on‑site maintenance replacement.
Application Scenarios Widely used in petrochemical, chemical and power plant DCS control cabinets. Collects field valve limit switch, equipment running status relay contact, interlock switch discrete signals for process interlock logic judgment and equipment status monitoring.
Structural Characteristics Compact 200‑series module housing, fits for baseplate mounting. Gold‑plated bottom connector for connecting with DIN‑rail baseplate. Front‑panel LED indicators for power, bus communication and channel status display. Cooperates with special termination assembly for field switch‑signal wiring.
Working Principle Field dry‑contact or voltage discrete signal is transmitted to FBM207B module via termination assembly. After input filter and isolation processing, module identifies on‑off status of each channel. Digital status data is transmitted to DCS field control processor through redundant fieldbus, and channel fault information is uploaded.
Installation Requirements Fix matched baseplate on 35 mm DIN‑rail inside control cabinet. Insert FBM207B onto baseplate and fasten locking buckle. Connect field switch‑value signal wiring to corresponding termination assembly terminals. Complete redundant fieldbus cable connection. Configure input filter parameters in DCS configuration software after power‑on.
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