M-system R3-NM1 User manual

R3-NM1
P. 1 / 7EM-8354 Rev.14
MODBUS INTERFACE MODULE MODEL R3-NM1
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 (110Ω, 0.25W) ............................ (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
■ CONFORMITY WITH EC DIRECTIVES
• The equipment must be mounted inside the instrument
panel of a metal enclosure.
• The actual installation environments such as panel con-
figurations, connected devices and connected wires may
affect the protection level of this unit when it is integrated
in a panel system. The user may have to review the CE
requirements in regard to the whole system and employ
additional protective measures to ensure CE conformity.
■ 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
Before you remove the unit from its base or mount it, turn
off the power supply for safety.
■ ENVIRONMENT
• Indoor use
• When heavy dust or metal particles are present in the air,
install the unit inside proper housing with sufficient ven-
tilation.
• 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 (power supply, input and output)
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 sat-
isfying complete performance described in the data sheet.
INSTALLATION
Use the Installation Base Model R3-BSx, or Model R3-
BSWx 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 “DATA DESCRIPTION” in Page 4.
■ NODE ADDRESS
See “COMPONENT IDENTIFICATION” in Page 2.
■ NETWORK SLOTS ON THE BASE
With Model R3-BSx 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-BSWx 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.
I/O 1 I/O 2 I/O n

R3-NM1
P. 2 / 7EM-8354 Rev.14
*2. Refer to the specifications of the related series for the
Data Allocation Type of I/O modules.
• Dual Communication: SW3
When two network modules are mounted, one must be
‘Main’ (OFF) network and the other must be ‘Sub’ (ON) net-
work. For single communication, the network module must
always be set to ‘Main’ (OFF).
• Input Error Data: SW3
Hold: When the communication from an input module is lost
due to the input module error, the network module holds the
signal and stands by until the communication recovers.
Set to ‘0’: When the communication from an input module
is lost due to the input module error, the network module
outputs ‘0.’
COMPONENT IDENTIFICATION
■ SIDE DIP SW
• Data allocation: SW1, SW2
Data Allocation Type*2must be assigned to each I/O module
slot position to specify how many data areas (four types) are
to be occupied by each.
Two bits from SW1 and SW2 are assigned to each position,
and data areas can be specified from the slot No. 1 through
8. Setting for No. 9 and later slots is identical to No. 8.
RUN LED
■ FRONT VIEW ■ SIDE VIEW
ERR LED
SA1
SA2
1
2
3
4
5
6
Terminal Block
Node Address (MSD)
Node Address (LSD)
Transmission Properties
Configuration Jack
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
SW6
ON
8
7
6
5
4
3
2
1
FG
SLD
DG
DB
DA
SW2
ON
8
7
6
5
4
3
2
1
SW3
ON
4
3
2
1
ON
8
7
6
5
4
3
2
1
SW1
Functions
■ FRONT ROTARY SW
Set the module’s node address in hexadecimal with SA1 and
SA2.
■ FRONT DIP SW
• Baud rate: SW6
• Parity: SW6 *1
• Data Mode: SW6 *1
*1. Bit assignment according to Parity and Data Mode setting
  BAUDRATE(bps)
  38.4k (*) 19.2k 9600 4800
SW6-1 OFF ON OFF ON
SW6-2 OFF OFF ON ON
  PARITY
  None (*) Odd Even N/A
SW6-3 OFF ON OFF ON
SW6-4 OFF OFF ON ON
  DATAMODE
  RTU(Binary) (*) ASCII
SW6-5 OFF ON
(*) Factory setting
 MODE START DATA PARITY STOP
RTU 1 8 1 1
1 8 None 2
ASCII 1 7 1 1
1 7 None 2
SWASSIGNMENT SLOT
SW1-1 SW1-2 1
SW1-3 SW1-4 2
SW1-5 SW1-6 3
SW1-7 SW1-8 4
SW2-1 SW2-2 5
SW2-3 SW2-4 6
SW2-5 SW2-6 7
SW2-7 SW2-8 8
SWSETTING DATAALLOCATION
OFF OFF 1
ON OFF 4
OFF ON 8
ON ON 16
  DUALCOMMUNICATION
  Main (*) Sub
SW3-1 OFF ON
  INPUTERRORDATA
  Hold (*) Setto‘0’
SW3-2 OFF ON

R3-NM1
P. 3 / 7EM-8354 Rev.14
TERMINAL CONNECTIONS
Connect the unit as in the diagram below.
INTERNAL
POWER
INTERNAL
COMM. BUS
DG
DB
DA
SLD
FG
To Other
Modbus
Devices
CONFIGURATION JACK JACK
BUS CONNECTOR
*Not provided with ‘No Power Supply’ type module.
1
4
2
3
6
FG
RUN +
RUN –
RUN CONTACT OUTPUT
U (+)
V (–)
POWER INPUT
*
WIRING INSTRUCTIONS
■ SOLDERLESS TERMINAL mm (inch)
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. Applicable
wire size: 0.75 to 1.25 mm2
3.2 (.13) dia.
4 min.
(.16)
12 (.47) max.
6 max.
(.24)
3 (.12) max.
EXTERNAL DIMENSIONS unit: mm (inch)
MODBUS WIRING
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)
TERMINATOR Tx+ / Rx+
Tx– / Rx–
SG
Rx+
Rx–
HOST PC
DA
DB
DG
SLD
FG
R3-NM1
DA
DB
DG
SLD
FG
R3-NM1
FG FG
• Main/Sub Switching Control: SW3
The host PC or PLC can choose whether ‘Main’ or ‘Sub’ bus
is 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-
ules in dual communication mode.
• LED Function: SW3
Functions assigned to the front RUN and ERR LEDs can
be selected.
 SW3-4 LED
  RUN ERR
OFF (*) Green when normal
Green when abnormal
ON Red when receiving Red when transmitting
(*) Factory setting
  MAIN/SUBSWITCHINGCONTROL
  Normal (*) Host
SW3-3 OFF ON

R3-NM1
P. 4 / 7EM-8354 Rev.14
MODBUS FUNCTION CODES & SUPPORTED CODES
■DATA & CONTROL FUNCTIONS
CODE NAME R3-NM1
01 Read Coil Status X Digital output from the slave (read/write)
02 Read Input Status X Status of digital inputs to the slave (read only)
03 Read Holding Registers X General purpose register within the slave (read/write)
04 Read Input Registers X Collected data from the field by the slave (read only)
05 Force Single Coil X Digital output from the slave (read/write)
06 Preset Single Registers X General purpose register within the slave (read/write)
07 Read Exception Status
08 Diagnostics X
09 Program 484
10 Poll 484
11 Fetch Comm. Event Counter X Fetch a status word and an event counter
12 Fetch Comm. Event Log X A status word, an event counter, a message count and a field of event bytes
13 Program Controller
14 Poll Controller
15 Force Multiple Coils X Digital output from the slave (read/write)
16 Preset Multiple Registers X General purpose register within the slave (read/write)
17 Report Slave ID
18 Program 884/M84
19 Reset Comm. Link
20 Read General Reference
21 Write General Reference
22 Mask Write 4X Register
23 Read/Write 4X Register
24 Read FIFO Queue
■EXCEPTION CODES
CODE NAME R3-NM1
01 Illegal Function X Function code is not allowable for the slave
02 Illegal Data Address X Address is not available within the slave
03 Illegal Data Value X Data is not valid for the function
04 Slave Device Failure X
05 Acknowledge X
06 Slave Device Busy X
07 Negative Acknowledge X
08 Memory Parity Error
■DIAGNOSTIC SUBFUNCTIONS
CODE NAME R3-NM1
00 Return Query Data X Loop back test
01 Restart Comm. Option X Reset the slave and clear all counters
02 Return Diagnostic Register X Contents of the diagnostic data (2 bytes)
03 Change ASCII Input Delimiter X Delimiter character of ASCII message
04 Force Listen Only Mode X Force the slave into Listen Only Mode

R3-NM1
P. 5 / 7EM-8354 Rev.14
MODBUS I/O ASSIGNMENTS
TRANSMISSION DATA ASSIGNMENTS
The DIP SW located at the side of the module specifies each I/O module’s data allocation (occupied data area).
For example, when the data areas are assigned as shown below:
Module 1 4
Module 2 4
Module 3 4
Module 4 1
Module 5 1
Module 6 1
Module 7 1
Then the I/O data are assigned as in the table below:
ADDRESS POSITION
Input Registers (3X) 1 – 4, 257 – 264 Slot 1
Holding Registers (4X) 5 – 8, 265 – 272 Slot 2
9 – 12, 273 – 280 Slot 3
13, 281 – 282 Slot 4
14, 283 – 284 Slot 5
15, 285 – 286 Slot 6
16, 287 – 288 Slot 7
ADDRESS POSITION
Coil (0X) 1 – 64 Slot 1
Inputs (1X) 65 – 128 Slot 2
129 – 192 Slot 3
193 – 208 Slot 4
209 – 224 Slot 5
225 – 240 Slot 6
241 – 256 Slot 7
For Coil (0X) and Inputs (1X), addresses 16 times assigned
data areas (Data Allocation Type) are allotted with the Data
Allocation Type ‘1’ and ‘4.’ With ‘8’ and ‘16,’ 64 (4 ×16) are
automatically assigned.
ADDRESS DATAFORMAT NAME
Coil (0X) 1 – 1024 Digital Output (discrete output)
1025 Main / Sub Switching Command (valid only with SW3-3 set to ON)
Inputs (1X) 1 – 1024 Digital Input (discrete input)
1025 – 1040 Module Status
1041 – 1056 Error Status
1057 – 1072 Data Error Status
Input Registers (3X) 1 – 256 I Analog Input
257 – 768 F Analog Input
Holding Registers (4X) 1 – 256 I Analog Output
257 – 768 F Analog Output
I : Integer, 0 – 10000 (0 – 100%)
F : Floating (32-bit data cannot be accessed using floating addresses.)
Note: DO NOT access addresses other than mentioned above. Such access may cause problems such as inadequate operation.
• Module Status indicates whether individual I/O module are mounted or not. The bit corresponding 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-US4: Input burnout
R3-DA16A: Power input in error or disconnected
R3-YSx: Output current error (e.g. load unconnected)
• Data Error Status indicates overrange (R3-US4: out of -10% to +110%; the other types: out of -15% to +115%) status for each
module. The bit corresponding to such modules turns to “1.”
• Main / Sub Switching Commands given to the network modules result as follows:
 MAIN’MODULE ‘SUB’MODULE OUTPUTMODE
1 0 Main bus is used; Red light turns on at RUN LED of the I/O modules.
0 1 Sub bus is used; Green light turns on at RUN LED of the I/O modules.
1 1 Main bus is used; Amber light turns on at RUN LED of the I/O modules.
0 0 Output is invalid; RUN LED of the I/O modules turns off.

R3-NM1
P. 6 / 7EM-8354 Rev.14
I/O DATA DESCRIPTIONS
■ MODULE STATUS, ERROR STATUS, DATA ERROR STATUS
Shows each module’s availability and error status.
■ ANALOG DATA (models: R3-SV4, YV4, DS4, YS4 and US4)
16-bit binary data.
Basically, 0 to 100% of the selected I/O range is converted into 0 to 10000 (binary). Negative percentage is represented in 2’s
complements.
■ TEMPERATURE DATA (models: R3-RS4, TS4 and US4)
16-bit binary data.
With °C temperature unit, raw data is multiplied by 10. For example, 25.5°C is converted into 255.
With °F temperature unit, the integer section of raw data is directly converted into the data. For example, 135.4°F is con-
verted into 135.
Minus temperature is converted into negative values, represented in 2’s complements.
■ ACCUMULATED COUNT DATA (32-bit data, models: R3-PA2, PA4A, WT1, WT4, etc.)
32-bit binary data is used for accumulated counts and encoder positions.
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.
■ BCD DATA (32-bit data, models: R3-BA32A, BC32A)
32-bit binary data is used for BCD.
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
15
Module 1
Module 2
Module 3
:
Module 16
0 15
0
15
+0
Lower 16 bits
0 15
+1
Higher 16 bits
0 15
+0 Lower 16 bits
0 15
+1 Higher 16 bits

R3-NM1
P. 7 / 7EM-8354 Rev.14
M-SYSTEM WARRANTY
M-SystemwarrantssuchnewM-Systemproductwhichitmanufacturestobefreefromdefectsinmaterialsandworkmanshipduringthe36-monthperiodfollowingthedatethatsuch
productwasoriginallypurchasedifsuchproducthasbeenusedundernormaloperatingconditionsandproperlymaintained,M-System’ssoleliability,andpurchaser’sexclusive
remedies,underthiswarrantyare,atM-System’soption,therepair,replacementorrefundofthepurchasepriceofanyM-Systemproductwhichisdefectiveunderthetermsofthis
warranty.Tosubmitaclaimunderthiswarranty,thepurchasermustreturn,atitsexpense,thedefectiveM-Systemproducttothebelowaddresstogetherwithacopyofitsoriginal
salesinvoice.
THISISTHEONLYWARRANTYAPPLICABLETOM-SYSTEMPRODUCTANDISINLIEUOFALLOTHERWARRANTIES,EXPRESSORIMPLIED,INCLUDINGANYIMPLIED
WARRANTIESOFMERCHANTABILITYORFITNESSFORAPARTICULARPURPOSE.M-SYSTEMSHALLHAVENOLIABILITYFORCONSEQUENTIAL,INCIDENTALOR
SPECIALDAMAGESOFANYKINDWHATSOEVER.
M-SystemCo.,Ltd.,5-2-55,Minamitsumori,Nishinari-ku,Osaka557-0063JAPAN,Phone:(06)6659-8201,Fax:(06)6659-8510,E-mail:[email protected]
0 15
Input 1 (Output 1)
Input 2 (Output 2)
Input 3 (Output 3)
: :
Input 16 (Output 16)
0 : OFF (open)
1 : ON (close)
■ DISCRETE DATA (models: R3-DA16 and DC16)
■ MAIN / SUB SWITCHING CONTROL
1) When the main/sub switching control for both main and sub network is set to ‘0, ’ all contact outputs are off, and analog
output modules output -115%.
2) When the main’s setting is switched to ‘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 with the PC Configurator Software, R3CON.) After the time has been elapsed, the output control is
switched from the main to the sub network. Be sure to set an appropriate output signal to the sub network and switch the
sub’s setting to ‘1’ before such switching occurs.
4) The output modules’ control does not automatically switched back to the main’s when the main network is restored if the
main’s setting is ‘0.’ Be sure to switch the setting back to ‘1’ before the communication is restored.
5) When both the main and the sub network modules are in communication, the output can be switched without delay.
Address : 01025 = 0
Communication Status Start Main Lost Main Restored Switching by Host
Address : 01025 = 1
R3 main network
(main/sub switching control)
Address : 01025 = 0
Address : 01025 = 1
R3 sub network
(main/sub switching control)
(1) (2) (3) (4) (5)