MODEL: R3-NM4

R3-NM4 SPECIFICATIONS

ES-8331 Rev.6 Page 2/8

http://www.m-system.co.jp/

MODBUS COMMUNICATION

RS-485

Standard: Conforms to TIA/EIA-485-A

Transmission distance: 500 meters max.

Transmission media: Shielded twisted-pair cable

(CPEV-S 0.9 dia.)

Supported function codes: 01, 02, 03, 04, 05, 06,

08, 11, 12, 15, 16, 17 (total of 12 types)

Transmission setting: DIP switch (front)

Data: RTU (Binary) or ASCII

Parity: None, even or odd

Baud rate: 300, 600, 1200, 2400, 4800, 9600, 14.4 k,

19.2 k, 28.8 k, 38.4 k, 57.6k, 115.2 k (bps)

Node address: Rotary switch; 01 – F7

INSTALLATION

Power consumption

•AC:

Approx. 20 VA at 100 V

Approx. 28 VA at 200 V

Approx. 30 VA at 240 V

•DC: Approx. 12 W

Current consumption (no power supply): 70 mA

Output current (power supply): 280 mA continuous at 20 V

DC; 430 mA for 10 minutes

Operating temperature: -10 to +55°C (14 to 131°F)

Operating humidity: 30 to 90 %RH (non-condensing)

Atmosphere: No corrosive gas or heavy dust

Mounting: Installation Base (model: R3-BSx)

Weight: 200 g (0.44 lb)

PERFORMANCE

Insulation resistance: ≥ 100 MΩ with 500 V DC

Dielectric strength: 1500 V AC @ 1 minute (Modbus to

internal bus or internal power to power input to RUN contact

output to FG)