MODEL: R1M-J3

R1M-J3 SPECIFICATIONS

ES-5655 Rev.15 Page 1/9

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

Remote I/O R1M Series

RTD & POTENTIOMETER INPUT MODULE

(8 points)

Functions & Features

• 8-point RTD or potentiometer inputs

• Easy system expansion via Modbus RTU

40

[1.57]

115

[4.53]

mm [inch]

175 [6.89]

MODEL: R1M-J3T-[1][2]

ORDERING INFORMATION

• Code number: R1M-J3T-[1][2]

Specify a code from below for each of [1] and [2].

(e.g. R1M-J3T-M2/Q)

• Specify the specification for option code /Q

(e.g. /C01)

FIELD TERMINAL TYPE

T: M3 screw terminals

[1] POWER INPUT

AC Power

M2: 100 – 240 V AC (Operational voltage range 85 – 264 V,

47 – 66 Hz)

DC Power

R: 24 V DC

(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)

[2] OPTIONS

blank: none

/Q: With options (specify the specification)

SPECIFICATIONS OF OPTION: Q

COATING (For the detail, refer to M-System's web site.)

/C01: Silicone coating

/C02: Polyurethane coating

/C03: Rubber coating

RELATED PRODUCTS

• R1X configurator software (model: R1CON)

Downloadable at M-System’s web site.

A dedicated cable is required to connect the module to the

PC. Please refer to the internet software download site or

the users manual for the PC configurator for applicable

cable types.

GENERAL SPECIFICATIONS

Connection

Power input, transmission: Euro type connector terminal

length 7 mm)

RS-232-C: 9-pin D-sub connector (male)

(Lock screw No. 4-40 UNC)

Input: M3 screw terminals (torque: 0.6N·m)

Screw terminal: Nickel-plated steel

Housing material: Flame-resistant resin (gray)

Isolation: Input to RS-232-C or RS-485 to power

Node address setting: Rotary switch; 1 – F (15 nodes)

RUN indicator LED: Green light blinks in normal conditions.

COMMUNICATION

Baud rate: 38.4 kbps

Communication: Half-duplex, asynchronous, no procedure

Protocol: Modbus RTU

Refer to Modbus Protocol Reference Guide (EM-5650) for

supported functions.

■ RS-232-C

Standard: Conforms to RS-232-C, EIA

Transmission distance: 10 meters max.

■ 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.)

INPUT SPECIFICATIONS

Input: RTD or potentiometer input, 8 points

Maximum leadwire resistance: 20 Ω per wire (3-wire)

Sensing current: ≤ 1 mA

RTDs: JPt 100 (JIS ’89), Pt 100 (JIS ’89), Pt 100

(JIS ’97, IEC), Pt 50 Ω (JIS ’81), Ni 508.4 Ω, Pt 1000

Potentiometers: 0 – 100 Ω, 0 – 500 Ω, 0 – 1 kΩ, 0 – 10 kΩ

Sampling rate: 100 msec./8 points

• Trigger input: Dry contact; ON detected at ≤ 1.5 V

Sensing: Approx. 5 V DC @ 1 mA