Description
At-A-Glance Executive Brief
- Model: RMP201-8
- Brand: Kongsberg Maritime (Norway)
- Part Type: RIO200 series remote multi-purpose I/O processor module
- Lifecycle status: OEM obsolete; stocked for vessel and offshore brownfield K-Chief DCS retrofits
- System compatibility: Kongsberg K-Chief 500 / K-Chief 600 marine distributed control system, RIO200 bus
- Weight: 1.1 kg
Technical Introduction
Failure of the RMP201-8 interrupts all local sensor acquisition and actuator control on its I/O segment, losing vessel machinery monitoring, valve and pump control feedback to the K-Chief DCS. The RMP201-8 is a marine-grade remote multifunction I/O module in the Kongsberg RIO200 family. It acts as a field front-end unit to acquire analog and discrete sensor signals, execute local I/O processing, and drive discrete outputs for valves, pumps and alarm devices. It communicates with the K-Chief main controller via the RIO200 field bus. Built for extreme marine environments, it offers vibration and salt mist resistance, onboard self-diagnostics and status LED indicators. Vessel owners and offshore operators hold spare modules to reduce downtime while executing legacy K-Chief system migration.
- Best Suited For
- Ship machinery control, offshore platform automation K-Chief 500/600 DCS cabinets
- Engine room sensor signal collection, pump/valve sequence control and alarm monitoring
- Direct drop-in replacement for existing Kongsberg RMP201-8 RIO200 field I/O hardware
Core Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | RMP201-8 |
| Manufacturer | Kongsberg Maritime |
| Series | RIO200 remote I/O family |
| Host System | K-Chief 500 / K-Chief 600 DCS |
| Communication | RIO200 field bus |
| Supply Voltage | 24 VDC (18–32 VDC operating range) |
| Enclosure | Compact DIN rail marine grade housing |
| Diagnostics | Onboard status LEDs, built-in self-test |
| Environment | Vibration and salt mist resistant, marine certified |
| Mounting | DIN rail |
| Weight | 1.1 kg |
| Environmental Details | Please refer to the OEM datasheet for complete environmental tolerances. |
Field Engineer’s Tech Notes
- Module configuration is stored in the K-Chief DCS database. A replacement unit requires downloading the correct I/O configuration before commissioning.
- Verify bus termination and RIO200 bus polarity before power-up. Incorrect bus wiring will cause communication dropouts between the RMP201-8 and main controller.
- Marine field sensors often use shielded cable; maintain single-point shield grounding to avoid ground loops on analog measurement channels.
Adaptive QA & Testing Protocol
Each RMP201-8 is bench powered at 24VDC and connected to a K-Chief / RIO200 test setup. We download the standard I/O configuration and validate RIO200 bus communication. Analog input channels are tested with calibrated 4–20mA signals, discrete inputs and relay outputs toggled to confirm full I/O functionality. We verify LED status indicators and run built-in self-diagnostics. Full test reports or bench test video clips are available upon request.
Buyer’s FAQ
Q: What is Kongsberg RMP201-8 used for? A: It is a remote multi-purpose I/O module for Kongsberg K-Chief marine DCS. It collects field sensor signals and controls actuators on ships and offshore platforms over the RIO200 bus.
Q: What warranty applies for refurbished and NSFP RMP201-8? A: Refurbished and NSFP units carry a 12-month hardware warranty. Coverage excludes damage from reversed 24VDC supply, bus wiring faults, or improper DCS configuration download.
Q: What lead time should I expect? A: Stocked units ship 3–7 business days. If inventory is depleted, lead time increases while we source surplus Kongsberg RIO200 modules.
Q: Can RMP201-8 work without K-Chief DCS? A: No, it is a dedicated RIO200 remote I/O slave module and requires a K-Chief main controller for configuration and operation.


