KONGSBERG RMP420-Remote Multipurpose Input/Output

RMP420-Remote Multipurpose

Input/Output

RPM420 is a multipurpose I/O module for use in Alarm monitoring and

Integrated Control Systems.  RMP420 is designed for 32 field input channels

in single topologies. Its interface towards the host control computer (RCU) is

provided by redundant I/O bus.

The module is approved for Ex Zone 2 applications.

Functions

• 32 software configurable multipurpose solid-state channels.

• Analog and Digital Input and Output (AI, AO, DI and DO).

• 2 or 3 wire Resistance Temperature Detector (RTD).

• 2 channels can be configured as pulse/frequency/encoder input.

• Short-circuit protected I/O loop power output.

• Dual Remote I/O process BUS interface for redundant communication with

host computer(s).

• Communication ports galvanically insulated from other module circuitry.

• Loop monitoring (per channel)

TECHNICAL DATA

KM Article number RMP420: 306712

Electrical

Input supply voltage: 24 VDC (18-31.2 V)

Power consumption: • Power: 10 W Typical

• Loop power:

Configuration dependable

Power connectors: • Screw terminals

• Cable cross-section:

2.5 mm2

• Max. torque 0.4-0.5 Nm

RBUS interface

RBUS connectors: 2x9 pin male D-Sub,

RS485. galvanic isolated

Input/output

No. of I/O channels: 32

I/O configuration: Multipurpose. Channels

are individually

configured

Digital Input (DI)

Loop voltage: Input supply voltage

Input loop current: Max. 4 mA @ 24 VDC loop

voltage

Channel "Off" current: <0.5 mA

Channel "On" current: >3 mA

Max input voltage: Input supply voltage

Max. input signal freq.: 10 ms pulse

Compliance: Namur compliant, PNP/NPN

compliant

Digital Output (DO)

Loop voltage: Input supply voltage

Loop driver device: Short Circuit Proof High

Side Driver

Loop driver trip current: approx. 1.4 A @ 20˚C

(reset by command)

Loop driver "Off" leakage: Max. 0.1 mA @ 24 VDC

input supply voltage

Loop monitoring current: Max. 2 mA @ 24 VDC input

supply voltage

Analog Input (AI)

Voltage input range: 0-4 V, 0-10 V

Input resistor to ground: 3 MΩ

Current input range: 0-20 mA

Automatic protection: 26 mA

Input resistor to ground: 150 Ω ±1 %

Measurement accuracy: ±0.15% of full scale

PT100 interface

Temp. range:-200 to 600˚C

Resolution: ±0.5˚C

Accuracy: ±0.4% of full scale

Temperature drift: ±50 ppm/˚C

Max. wire resistance: 25 ohm/wire

Response time 1000 ms

Analaog Output (AO)

Voltage output range: 0-10 V ±0.5% (internal

resistance: 1 kohm)

Current output range: 0-20 mA

Minimumlocal resistance: 500 ohm

Measurement accuracy: ±0.35% of full scale

Pulse/Frequency interface

Max. input range: Pulse count freq.:10 kHz

Encoder count Up/Down:

2.5 kHz rev. (4 counts/

revolution)

Duty cycle: Pulse width: min. 11µ @

10 kHz range

Pulse lever transmission: Namur: 1on >2.1 mA, 1off

<1.2 mA. Rin <2.2 kohm,

1max = 3 mA,

Current: 1ohm >9 mA, 1off <7 mA,

Rin <1 kohm, 1max = 13 mA

Accuracy (oscillator): 100 ppm over the whole

temp. range (-15 to

+70˚C) 25 ppm typical @

2˚C

Fail safe

HW Fail safe: Min. 65 ms

Internal Test Error: Instantly set

Soft Fail safe (down

counter):

100 ms - 65 sec. (6 sec.

default)

Compliance • IACS E10

• IEC 60945

• IEC 60355

• IEC/EN60079-0.-7

Type approval Presafe 18ATEX12094X

(II 3G Ex ec IIC T4 Gc)

Environmental specifications

Ambient temp. and humidity:

Temp. operation:-15˚C to +70˚C

Temp. storage:-25˚C to +70˚C

Humidity operation: Up to 98% RH

Humidity storage: Up to 98% RH

Protection standards: IP 20 (IEC 60529)

Mechanical

HxWxD: 355x158x87 mm

Weight: 1.35 kg

DIN rail vertical

mounted: 35 7.5/15

Life cycle prediction

Predicted failure rate @

GB 25˚C (60% confident,

based on chip suppliers

data): 38.5 years

Predicted failure rate @

NS 35˚C (Environmental

derating based on Rome

Laboratory toolkit): 10.4 years