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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. 1 / 9

INSTRUCTION MANUAL

BEFORE USE ....

Thank you for choosing M-System.  Before use, please check 
contents of the package you received as outlined below.
If you have any problems or questions with the product, 
please contact M-System’s Sales Office or representatives.

 

PACKAGE INCLUDES:

Network interface module ..................................................(1)
Terminating resistor (110 Ω, 0.25 W) .................................(1)

 

MODEL NO.

Confirm Model No. marking on the product to be exactly 
what you ordered.

 

INSTRUCTION MANUAL

This manual describes necessary points of caution when 
you use this product, including installation, connection and 
basic maintenance procedures.

POINTS OF CAUTION

 

HOT INSERTION/REMOVAL OF MODULES

• It is possible to replace the module with the power is sup-

plied.  Be sure to replace it when the module is not com-
municating with a host, as it is possible to affect the sys-
tem.  However, replacing multiple modules at once may 
greatly change line voltage levels. We recommend that 
you replace them one by one.

 

POWER INPUT RATING & OPERATIONAL RANGE

• Locate the power input rating marked on the product and 

confirm its operational range as indicated below:

  100 – 120V AC rating: 85 – 132V, 47 – 66 Hz, approx. 20VA
  200 – 240V AC rating: 170 – 264V, 47 – 66 Hz, approx. 20VA

    24V DC rating: 24V ±10%, approx. 12W

 

GENERAL PRECAUTIONS

• DO NOT set the switches on the module while the power 

is supplied.  The switches are used only for maintenance 
without the power.

 

ENVIRONMENT

• Indoor use.
• When heavy dust or metal particles are present in the 

air, 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 temperature must be within -10 to +55°C 

(14 to 131°F) with relative humidity within 30 to 90% RH 
in order to ensure adequate life span and operation.

 

WIRING

• Do not install cables close to noise sources (relay drive 

cable, high frequency line, etc.).

• Do not bind these cables together with those in which 

noises are present.  Do not install them in the same duct.

 

AND ....

• The unit is designed to function as soon as power is sup-

plied, however, a warm up for 10 minutes is required for 
satisfying complete performance described in the data 
sheet.

INSTALLATION

Use the Installation Base Model R3-BS, or Model R3-BSW 
for free I/O address capability.

Before mounting the Network Interface Module onto the 
Base, be sure to configure the module as explained below.

 

DATA ALLOCATION

The setting determines the data area size assigned to each 
I/O module mounted on the base.
The data sent/received via Modbus is mapped according to 
this setting.
See “COMPONENT IDENTIFICATION” and “MODBUS 
I/O ASSIGNMENTS”.

 

NODE ADDRESS & BAUD RATE, ETC.

See “COMPONENT IDENTIFICATION”.

 

NETWORK SLOTS ON THE BASE

I/O 1

I/O 2

I/O n

With Model R3-BS base, mount the I/O Modules from the 
left end (I/O 1) to the right in order that the Network Mod-
ule assigns data areas from I/O 1.
Network Module(s) and Power Module are mounted basi-
cally at the right end though technically they could be 
mounted in any position.

With Model R3-BSW base, there is no limitation in mount-
ing positions as I/O address can be assigned freely to each 
module using rotary switches equipped on the base.

MODBUS INTERFACE MODULE

(For temperature control module)

MODEL

R3-NM3

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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