MODEL: 73VR21

73VR21 SPECIFICATIONS

ES-7395 Rev.29 Page 17/18

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

• Dedicated Protocol

Real time communication: Transmits specific data to a host

PC installed with the PC Recorder Software (model:

MSR128).

FTP communication: Transmits data stored in the CF Card

using the FTP protocol to a host PC by the 73VR Data Viewer

(model: 73VRWV) installed in it. Data can be transmitted

even during recording.

Download, Upload: Software configurations created on the

73VR21x Configuration Builder (model:73VR21BLD) can be

downloaded to the 73VR21x. The configuration set up on

the 73VR21x can be uploaded and displayed on the

73VR21BLD.

• Modbus Protocol

Protocol: Modbus/TCP

Port No.: 502 (fixed)

IP address: Set on the recorder

Subnet mask: Set on the recorder

Default gateway: Set on the recorder

Max. number of 73VR21x connected simultaneously: 2

Supported Function Codes

CODE NAME

FUNCTION

01

Read Coil Status

Reads DO

02

Read Input Status

Reads DI

04

Read Input Register

Reads Input Register

11

Fetch Communication

Reads Status Word and

Event Counter

Event Counter from

Comm. Event Counter

Exception Response

CODE NAME

FUNCTION

01

Illegal Function

Function Not supported

02

Illegal Data Address

Speci ed address does

not exist

Supported Function Codes

ADDR. TYPE NAME

Coil (0X)

1

Discrete output

Input

1

Trigger input

Status

3

Discrete input (73VR2102)

(1X)

5

Discrete input (73VR2104)

7

Discrete input (73VR2106)

9

Discrete input (73VR2108)

11

Discrete input (73VR2110)

13

Discrete input (73VR2112)

14 – 25

Function data (discrete)

Input

1 – 24

F

Measured data (analog)

Register (3X)

25 – 48

F

Function data (analog)

■ OTHER FUNCTIONS

• Operation Lockout

With a password setting, unauthorized operations on the

Trend View, Bargraph View and Overview can be locked out.

• Data File Used Volume Information

A bargraph with % indication is provided on the screen to

show how much percent of the data file memory has been

used up.

0 – 49 % used: Green bargraph

50 – 79 % used: Amber bargraph

80 – 100 % used: Red bargraph

• Hot Swapping of the CF Card

The CF Card is hot swappable: removable during data

recording. However, there may be a slight disturbance in

storing rate when the card is inserted.

• Screen Saver

The backlight is automatically turned off if the screen is

untouched for a certain time period.

• Bus Error Alert

An alarm is output at Alarm Output Terminal in case of

internal bus error.

• Writing/Reading Setting

The recorder’s present setting can be stored in a USB flash-

memory. Setting stored in the memory can be read in to the

73VR21x.

• Hardware Setting

Burnout, Cold junction compensation, AD conversion mode,

line noise filter

• Field Calibration