·Some details are not shown. Please refer to specification sheets for all information.


Paperless Recording System

(color LCD display)

Functions & Features
• 96 mm square size
• Records, displays and sets alarms for 8 analog and 8 contact inputs and 8 contact outputs
• Maps the remote I/O data to logical channels
• Built-in I/O: 2 analog, 3 universal and 2 contact inputs and 2 contact outputs
• Trigger function: Records only necessary part of the data
• Recorded data can be transferred to a PC with memory cards or COP-IRDA and converted to CSV format with 71VRCFG
• TFT color LCD
• IP65 front panel
• Separable two pieces terminal block
• Safety terminal cover tethered to the device with a strap

MODEL: 71VR1-[1][2]1-[3][4]

• Code number: 71VR1-[1][2]1-[3][4]
Specify a code from below for each of [1] through [4].
  (e.g. 71VR1-N101-M2/Q)
• Specify the specification for option code /Q
  (e.g. /C01)

N: Japanese
E: English
(Language (Japanese or English) can be chosen by front
panel setting.)

00: None
10: DC input, 2-points
50: DC input, 2-points,
Universal input, 3-points (V, mA, T/C, RTD)

1: Modbus

AC Power
M2: 100 – 240 V AC (Operational voltage range 85 – 264 V, 50/60 Hz)
DC Power
R: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
P: 110 V DC
(Operational voltage range 85 – 150 V, ripple 10 %p-p max.)

blank: none
/Q: Options other than the above (specify the specification)

COATING (For the detail, refer to M-System's web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating

• Precision Resistor Module (model: REM2-50)
Use for mA universal input
• Infrared communication adaptor (model: COP-IRDA)
• PC configurator software (model: 71VRCFG)
Downloadable at M-System’s web site.
• Remote I/O R3 series
Modbus interface module (model: R3-NM1)
• Remote I/O R5 series
Modbus interface module (model: R5-NM1)
• Modbus I/O module (model: R7M)
R7 Configurator Software (Model: R7CON)
Modbus communication parameters of the R7M must be configured by using R7CON and the dedicated cable.
• Devices equipped with Modbus communication. For detailed information, visit the M-System’s web site.
• Memory card
A memory card is required to store data in the unit.
Use the specified model number of memeory card.
Available for purchase from M-System. Consult M-System.
  - Hagiwara Solutions NSD6-004GH(B21SEI 
  (NSD6-004GH(A00SDI, NSD6-002GT, NSDA-004GT and NSDA-004GL ... discontinued)
  - Apacer Technology AP-ISD04GIS4B-3T
  (AP-ISD04GIS4B-T ... discontinued)

Construction: 96-mm square (1/4 DIN size) panel flush mounted
Degree of protection: IP65; applicable to the front panel of the recorder with single mounting according to the specified panel cutout
Connection: M3 separable screw terminal (torque 0.5 N·m)
Screw terminal: Nickel-plated steel
Housing material: Flame-resistant resin (black)
Isolation: Analog input each other to contact input to contact output 1 to contact output 2 to Modbus interface to power to FE (Functional Earth)
Number of assignable logical channels
Analog input: 8 points max.
Contact input: 8 points max.
Contact output: 8 points max.
Data storage: Stores Trend and Alarm history in memory card.
Trend: Stored in files named time and date.
  60000 samples in one file
  Storage capacity: 200 files max.
  Storage time:
  Approx. 13 days at storing rate 0.1 sec.,
  approx. 138 days at 1 sec.,
  approx. 1388 days at 10 sec.,
  approx. 8333 days at 1min.,
  approx. 250000 days at 30 min.,
  approx. 500000 days at 1 hour.
Alarm history: Stored in alarm history file, 200 items max.
Display device: 3.5-inch TFT LCD
Display colors: 256
Resolution: 320 × 240 pixels
Backlight: LED
Display update interval: 500 msec.

Universal Input (Ai3, Ai4, Ai5)
DC current input
(Range: Input resistance)
-20 – +20 mA: 50 Ω (separately provided REM2)
DC voltage input
(Range: Input resistance)
-1 – +1 V: ≥ 1 MΩ
-5 – +5 V: ≥ 1 MΩ
-10 – +10 V: ≥ 1 MΩ
Thermocouple input: K, E, J, T, B, R, S, C, N, U, L, P, PR (See Table 1.)
Input resistance: ≥ 30 kΩ
Burnout sensing: ≤ 0.1 μA
Burnout indication: Maximum value (upscale burnout)
of the usable range
RTD input: Pt 100 (JIS ’97, IEC), Pt 100 (JIS ’89), JPt 100 (JIS ’89), Pt 50Ω (JIS ’81), Ni 100, Cu 10, Cu 50  (See Table 2.)
Input resistance: ≥ 1 MΩ
Maximum leadwire resistance: 100 Ω per wire
Burnout indication: Maximum value (upscale burnout) of the usable range
Sensing current: ≤ 1 mA
DC Current Input (Ai1, Ai2)
(Range: Input resistance)
-20 – +20 mA: 100 Ω (incorporated)
DC Voltage Input (Ai1, Ai2)
(Range: Input resistance)
-1 – +1V: ≥ 1MΩ
-5 – +5V: ≥ 1MΩ
-10 – +10V: ≥ 1MΩ
Contact Input (Di1, Di2): Dry contact, 2 points
Input resistance: Approx. 1.8 kΩ
Common: Negative
Sensing: 12 V DC
ON current/resistance: ≥ 1.5 mA, ≤ 1.5 kΩ
OFF current/resistance: ≤ 0.75 mA, ≥ 15 kΩ

Network Interface
Modbus-RTU: Retrievable analog data is Int data (signed 16 bits) only.
Transmission: Half-duplex, asynchronous, no procedure
Interface: Conforms to TIA/EIA-485-A
Max. transmission distance: 500 meters
Baud rate: 4800, 9600, 19200, 38400 bps
Data bit: 8 bits
Parity: Odd
Stop bit: 1 bit
Max. number of nodes: 15 (except the master)
Media: Shielded twisted-pair cable (CPEV-S 0.9 dia.)
Infrared Interface
Interface: IrDA
Max. transmission distance: ≤ 0.2 m (with COP-IRDA and 71VRCFG)
■ Contact Output (Do1, Do2)
Relay Output
Relay rating:
250 V AC @5 A (cos ø = 1)
30 V DC @5 A (resistive load)
Maximum switching voltage: 250 V AC or 30 V DC
Maximum switching power: 1250 VA or 150 W
Minimum load: 5 V DC @10 mA
Mechanical life: 2 × 107 cycles

Power consumption
 Approx. 7 VA at 100 V
 Approx. 10 VA at 240 V
DC: Approx. 6 W
Operating temperature: -5 to +55°C (23 to 131°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Atmosphere: No corrosive gas or heavy dust
Mounting: Panel flush mounting
Weight: 550 g (1.21 lb)

Conversion accuracy
DC input
: ±0.1% ±1 digit
Thermocouple input: ±1°C (±2°C for B, R, S, C, PR)
RTD input: ±1°C (±3°C for Cu 10)
CJC error: ±2°C max. at 25°C ±10°C
±4°C max. for R, S, PR
Temp. coefficient: ±0.015 %/°C (±0.008 %/°F)
(±0.05 %/°C (±0.03 %/°F) for Cu 10) of max. span
Response time: ≤ 0.5 sec. for DC input with the sample
rate set to 100 msec.
≤ 2.5 sec. for T/C, RTD input with the sample
rate set to 500 msec.
Response time of alarm output, 0 – 100 % at 90 % setpoint.
Line voltage effect: ±0.1 % over voltage range
Calendar clock accuracy: Monthly deviation 2 minutes at 25°C
Battery backup: Approx. one month
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 2000 V AC @1 minute
(analog input each other to contact input to contact output 1 to contact output 2 to Modbus interface to power to FE)

EU conformity:
EMC Directive 
  EMI EN 61000-6-4
  EMS EN 61000-6-2
Low Voltage Directive 
  EN 61010-1
  Measurement Category II (contact output)
  Installation Category II (power)
  Pollution degree 2
  Analog input or contact input or contact output or network 
  interface to power to FE: Reinforced insulation (300 V)
  Analog input each other to contact input to contact output 
  each other to network interface: Basic insulation (300 V)
RoHS Directive
Protection against access to the terminal blocks:
Finger protection (VDE 0660-514)





Note: In order to improve EMC performance, bond the FE terminal to ground.
Caution: FE terminal is NOT a protective conductor terminal.


M-System Co., Ltd.