KONGSBERG 8100154 RDi-32 REMOTE DIGITAL INPUT

KONGSBERG NORCONTROL RDI-32 (Part Number 8100154) 32-channel Remote Digital Input Module
I. Basic Identification Information
Full Model: RDI-32 Remote Digital Input
Original Part Number: 8100154, Hardware Versions mainstream Rev.E1, Rev.F; Derivative Identifiers: HA451674, AUE-758 / AUE-1059
Brand Lineage: Formerly Norcontrol, later merged into Kongsberg Maritime, compatible with NC2000 / K-Chief 500 / K-Chief 600 three-generation engine room monitoring, main engine control, DP power positioning older generation distributed RIO system
Location: Large-capacity 32-channel switch quantity acquisition card, centralized on-site collection of valve limit, pressure / temperature switches, pump operation feedback, safety contacts, classic large-capacity DI station of the old Norcontrol system

32-channel Digital Input Hardware Specifications
Channel Grouping
The 32 DI channels are divided into 4 isolated zones, each with 8 channels, with electrical isolation between zones; each channel is independently optically isolated
Standard Circuit Voltage: 24VDC for ship power supply
Conduction Judgment: Input ≥ 16VDC = ON; ≤6VDC=OFF
Loop current: When closed, the single channel is approximately 4–6 mA. Suitable for passive dry contacts (float balls, limit switches, buttons, temperature-controlled pressure switches)
Fault diagnosis

LFD open circuit fault detection： Open circuits in the lines， broken contacts， and power loss can be detected separately； single-channel fault isolation， and the remaining 31 channels can perform normal data collection Compatibility
Support two types of dry contact connection methods: N/C (normally closed) and N/O (normally open). The engineering software can batch configure the channel logic inversion.

System Bus Communication (Norcontrol dedicated BUS)
Dual redundant field buses (Norcontrol private serial bus)
Dual A/B bus hot standby, differential RS485 bottom layer, Manchester encoding, transmission rate 1.2Mbps
Upstream connection to the system main control unit: ETU, MCU, RCU series controllers
The longest bus laying distance is 200m, CAT5 shielded network cable is sufficient
Built-in local RS232 debugging port: used for setting module address, firmware update, channel forced test, and fault log reading
Data refresh cycle: all 32-point status uploaded to the central control monitoring screen within 20ms