Emerson 1172C28H01 Analog Input Module

Technical Specifications

Model：1172C28H01

Brand：Emerson

Product Type：Analog Input Module

Applicable System：Emerson industrial distributed control system, power plant thermal control cabinet

Supply Voltage：24VDC auxiliary DC power input

Interface：Backplane bus connector, multi‑channel analog signal field terminal interface

Common Revision：Multiple hardware revisions available

Status Indicator：On‑board LED for power supply, channel status and fault diagnostic status

Built‑in Function：4‑20mA analog signal collection, signal isolation and filtering, A/D conversion, channel data upload to main controller, fault self‑diagnosis, partial channels support hot‑swap

Working Temperature：0℃ ~ +60℃

Storage Temperature：‑20℃ ~ +70℃

Protection Class：IP20

Mounting：Card‑cage slot‑in installation

Weight：0.62kg

Product Brief:

1172C28H01 is legacy analog input module manufactured by Emerson. It is a key I/O acquisition card for distributed control system, mainly responsible for collecting 4‑20mA analog signals from field transmitters. After isolation filtering and A/D conversion, process variable data is uploaded to main controller via system backplane. On‑board LED provides visual diagnosis for power, channel working and fault state. This is EOL discontinued spare part,widely used for maintenance and renovation of legacy power plant DCS equipment. Please confirm hardware revision, backplane matching and firmware version before purchase. Strict ESD anti‑static protection shall be performed during installation.