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R3-NM3

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected]

EM-8330  Rev.3  P. 4 / 9

TERMINAL CONNECTIONS

Connect the unit as in the diagram below.

 

EXTERNAL DIMENSIONS  unit: mm (inch) 

1

2

3

4

5

6

130 (5.12)

27.5 (1.08)

109 (4.29)

POSITIONING

GUIDE

TERMINAL

COVER

6–M3

SCREW

6.2

(.24)

 

CONNECTION DIAGRAM

FG

*

INTERNAL 

POWER

INTERNAL BUS

DG

DB
DA

SLD

FG

To Other

Modbus

Devices

CONFIGURATION JACK

JACK

BUS CONNECTOR

*

Not provided with ‘No Power Supply’ type module.

Caution: FG terminal is NOT a protective conductor terminal.

1

4

2

3

6

RUN 

+

RUN 

RUN CONTACT OUTPUT

U (+) 

V (–) 

POWER INPUT

*

WIRING INSTRUCTIONS

 

M3 SCREW TERMINAL (power input, RUN contact output) 

Torque: 0.5 N·m

 

SOLDERLESS TERMINAL 

Refer to the drawing below for recommended ring tongue 
terminal size.  Spade tongue type is also applicable.  Solder-
less terminals with insulation sleeve do not fit.
Recommended manufacturer: Japan Solderless Terminal 
MFG.Co.Ltd, Nichifu Co.,ltd
Applicable wire size: 0.75 to 1.25 mm

2

12max

6max

3max

4min

3.2 dia.

(mm)

 

EURO TYPE CONNECTOR TERMINAL (Modbus)

Applicable wire size: 0.2 to 2.5 mm

2

 (AWG24 to 12)

Stripped length: 7 mm

COMMUNICATION CABLE CONNECTIONS

TERMINATOR

Tx+ / Rx+
Tx– / Rx–

SG

Rx+
Rx–

HOST PC

DA
DB

DG

SLD

FG

DA
DB

DG

SLD

FG

MODBUS

INTERFACE

MODULE

MODBUS

INTERFACE

MODULE

FG

FG

Summary of Contents for R3-NM3

Page 1: ...r install the unit inside proper housing with sufficient ventilation Do not install the unit where it is subjected to continuous vibration Do not subject the unit to physical impact Environmental temp...

Page 2: ...1 Bit assignment according to Parity and Data Mode setting MODE START DATA PARITY STOP RTU 1 8 1 1 1 8 None 2 ASCII 1 7 1 1 1 7 None 2 Note Be sure to set unused SW6 6 through 6 8 to OFF SIDE DIP SW...

Page 3: ...used when the switching control is set to Host In Normal mode Main bus is normally used while Sub bus is when the main communication has failed Be sure to match this control mode for both network mod...

Page 4: ...conductor terminal 1 4 2 3 6 RUN RUN RUN CONTACT OUTPUT U V POWER INPUT WIRING INSTRUCTIONS M3 SCREW TERMINAL power input RUN contact output Torque 0 5 N m SOLDERLESS TERMINAL Refer to the drawing be...

Page 5: ...Program Controller 14 Poll Controller 15 Force Multiple Coils X Digital output from the slave 16 Preset Multiple Registers X General purpose register within the slave 17 Report Slave ID X Slave type R...

Page 6: ...to the mounted slots turns to 1 and the unmounted slots to 0 Error Status indicates error status for each module as described below The bit corresponding to such modules turns to 1 R3 TSx R3 RSx R3 US...

Page 7: ...ssigned data areas Data Allocation Type are allotted with the Data Al location Type 1 and 4 With 8 and 16 64 4 16 are automatically assigned MODULE STATUS ERROR STATUS DATA ERROR STATUS Shows each mod...

Page 8: ...tions Lower 16 bits are allocated from the lowest address to higher ones higher 16 bits in turn 32 bit data cannot be accessed using floating addresses 0 15 0 Lower 16 bits 0 15 1 Higher 16 bits BCD D...

Page 9: ...1 the output modules are in control of the main host device 3 When a loss of communication is detected in the main network the output signal is held for the preset time period Timer is programmable wi...

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