M-system R1M-A1 Instruction Manual

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-5661 Rev.6 P. 1 / 8

INSTRUCTION MANUAL

CONTACT INPUT MODULE

(32 points)

MODEL

R1M-A1

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.

This product is for use in general industrial environments,
therefore may not be suitable for applications which require
higher level of safety (e.g. safety or accident prevention sys­tems) or of reliability (e.g. vehicle control or combustion con­trol systems).

For safety, installation and maintenance of this product
must be conducted by qualified personnel.

■ PACKAGE INCLUDES:

Remote I/O module .............................................................(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.
For detailed information on Modbus supported functions,
refer to Modbus Protocol Reference Guide (EM-5650).
The R1M is programmable using the PC configurator soft­ware. For detailed information on the PC configuration,
refer to the R1CON instruction manual. The R1CON PC
Configurator Software is downloadable at M-System’s web
site: http://www.m-system.co.jp.

POINTS OF CAUTION

■ CONFORMITY WITH EU DIRECTIVES

•This equipment is suitable for Pollution Degree 2 and
Installation Category II (transient voltage 2500V). Re­inforced insulation (input or RS-232-C/RS-485 to power:
300V) and basic insulation (input to RS-232-C/RS-485:
300V) are maintained. Prior to installation, check that
the insulation class of this unit satisfies the system re­quirements.

•Altitude up to 2000 meters.

•The equipment must be mounted inside a panel.

•Insert noise filters. Okaya Electric Industries Model

SUP-E1H or equivalent for the power source connected to
the unit, and TDK Model ZCAT 3035-1330 or equivalent
for the RS-232-C cable are recommended.

•The equipment must be installed such that appropriate
clearance and creepage distances are maintained to con­form to CE requirements. Failure to observe these re­quirements may invalidate the CE conformance.

•The actual installation environments such as panel con­figurations, connected devices, 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 the CE conform­ity.

•Install lightning surge protectors for those wires connect­ed to remote locations.

■ POWER INPUT RATING & OPERATIONAL RANGE

•Locate the power input rating marked on the product and
confirm its operational range as indicated below:
100 – 240V AC rating: 85 – 264V, 47 – 66 Hz, approx. 10VA

24V DC rating: 24V ±10%, approx. 7W

■ GENERAL PRECAUTIONS

•Before you remove the module, turn off the power supply
and input signal for safety.

■ ENVIRONMENT

•Indoor use.

•When heavy dust or metal particles are present in the air,

install the module inside proper housing with sufficient
ventilation.

•Do not install the module where it is subjected to continu­ous vibration. Do not subject the unit to physical impact.

•Environmental temperature must be within -5 to +60°C
(23 to 140°F) with relative humidity within 30 to 90% RH
in order to ensure adequate life span and operation.

•Be sure that the ventilation slits are not covered with ca­bles, etc.

■ WIRING

•Wrong connection may damage the module.

•Do not connect cables to moving parts or pull them tightly.

•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 module is designed to function as soon as power is
supplied, however, a warm up for 10 minutes is required
for satisfying complete performance described in the data
sheet.

R1M-A1

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-5661 Rev.6 P. 2 / 8

COMPONENT IDENTIFICATION

■ REAR VIEW

RS-485
Connector

Node Address Setting
Rotary SW

Configurator
Jack

Specifications

Power Terminals

RS-232-C
9-pin Connector

RUN Indicator
LED

INSTALLATION

■ DIN RAIL MOUNTING

Set the body so that its DIN rail
adaptor is at the bottom. Pull
down the DIN rail adaptor.
Position the upper hook at the
rear side on the DIN rail and
push in the lower. Push back the
DIN rail adaptor.

■ WALL MOUNTING

Set the body so that its DIN rail
adaptor is at the bottom. Pull
down the DIN rail adaptor.
Refer to “EXTERNAL DIMENSIONS.”

TERMINAL CONNECTIONS

Connect the module referring to the connection diagram.

■ EXTERNAL DIMENSIONS unit: mm (inch)

• M3 SCREW TERMINALS

123456789

10 11 12 13 14 15 16 17 18

19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 35

T1 T2T3 T4

T5 T6T7

104 (4.09)

10 (.39)

105 (4.13)

14 (.55)

163 (6.42)

36–M3 INPUT TERMINALS

165 (6.50)

175 (6.89)

3–5 (.20) dia.
MTG HOLES

FOR WALL MOUNT.

6.2 (.24)

15.5 (.61)

[6 (.24)]

40 (1.57)

3 (.12)

46 (1.81)

DIN RAIL
35 mm wide

• FCN TYPE CONNECTOR

T1 T2T3 T4

T5 T6T7

104 (4.09)

10 (.39)

105 (4.13)

14 (.55)

163 (6.42)

165 (6.50)

175 (6.89)

3–5 (.20) dia.
MTG HOLES

FOR WALL MOUNT.

FCN TYPE INPUT CONNECTOR

[6 (.24)]

40 (1.57)

40 (1.57)

Connector Pin

Assignment

A1 B1

A16 B16

CN1 CN2

See Caution below

Caution: DO NOT APPLY EXCESSIVE FORCE onto
the connector. The connector may be destroyed.

15.5 (.61)

3 (.12)

46 (1.81)

DIN RAIL
35 mm wide

DIN Rail Adaptor

DIN Rail

35mm wide

R1M-A1

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-5661 Rev.6 P. 3 / 8

■ CONNECTION DIAGRAM

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

RS-232-C

T3
T4

T2

T1

T7

T6

T5

Term.

Resist.

Output
Circuit

When the device is located at the end of a transmission line via twisted-pair cable,
(when there is no cross-wiring), close across the terminal T2 –T3 with the attached
jumper pin (or with a leadwire).
When the device is not at the end, remove the jumper pin.

*

Power
Circuit

+

–

Shielded Twisted-pair Cable

To Other
I/O Modules

Jumper*

FG

U (+)
V (–)

POWER

D-SUB CONNECTOR

9

8

7

6

5

4

3

2

1

10

12

11

13

15

14

16
17
18

20

19

21
22
23
24
25

27

26

28
29
30
31
32
33

35

34

36

ch.1

ch.2

ch.3

ch.4

ch.5

ch.6

ch.7

ch.8

COM (–)

ch.9

ch.10

ch.11

ch.12

ch.13

ch.14

ch.15

ch.16

COM (–)

ch.17

ch.18

ch.19

ch.20

ch.21

ch.22

ch.23

ch.24

COM (–)

ch.25

ch.26

ch.27

ch.28

ch.29

ch.30

ch.31

Count Reset Input

ch.32

COM (–)

Input Circuit

Input Circuit

A9

A8

A7

A6

A5

A4

A3

A2

A1

A10

A12

A11

A13

A15

A14

A16

B1

:

B16

ch.1

ch.2

ch.3

ch.4

ch.5

ch.6

ch.7

ch.8

ch.9

ch.10

ch.11

ch.12

ch.13

ch.14

ch.15

ch.16

COM (–)

A9

A8

A7

A6

A5

A4

A3

A2

A1

A10

A12

A11

A13

A15

A14

A16

ch.17

CN1

ch.18

ch.19

ch.20

ch.21

ch.22

ch.23

ch.24

ch.25

ch.26

ch.27

ch.28

ch.29

ch.30

ch.31

Count Reset Input

ch.32

■ FCN TYPE CONNECTOR ■ M3 SCREW TERMINALS

CN2

B1

:

B16

COM (–)

■ RS-232-C INTERFACE

15

69

ABBR. PIN NO. EXPLANATION OF FUNCTION

BA (SD)

BB (RD)

AB (SG)

2
3
5

Transmitted Data
Received Data
Signal Common

CB (CS)
CA (RS)

78Clear to Send

Request to Send

1
4
6
9

Not Used.
DO NOT connect. Connecting may
cause malfunctions.

R1M-A1

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-5661 Rev.6 P. 4 / 8

WIRING INSTRUCTIONS

■ M3 SCREW TERMINAL (Input signal)

Torque: 0.6 N·m

■ SOLDERLESS TERMINAL

Refer to the drawing below for recommended ring tongue
terminal size. Spade tongue type is also applicable.
Applicable wire size: 0.75 to 1.25 mm

2

(AWG19 – 16)
Recommended manufacturer: Japan Solderless Terminal
MFG.Co.Ltd, Nichifu Co.,ltd

6 max

(.24)

3 (.12) max

3.2 (.13) dia.

mm (inch)

■ EURO TYPE CONNECTOR TERMINAL (Power input,
Modbus)

Applicable wire size: 0.2 – 2.5 mm

2

(AWG24-12)

Stripped length: 7 mm

MODBUS WIRING CONNECTION

R1M

T1
T2
T3
T4

R1M

T1
T2
T3
T4

T1
T2
T3
T4

R1M

CONNECTOR

RS-232-C

RS-485

*

1

*

1

*1. Internal terminating resistor is used when the device is at the end of a transmission line.
*2. Install shielded cables to all sections and ground them at single point.

*

2

FG

RS-485

R1M-A1

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-5661 Rev.6 P. 5 / 8

MODBUS COMMUNICATION

■ COMMUNICATION PARAMETERS

PARAMETER SPECIFICATION

Data Mode RTU
Baud Rate 9600 / 19200 / 38400 (*) bps

Parity None / Odd (*) / Even

Bit Length 8

Stop Bit 1 (*) / 2

Node Address 1 (*) to 15

Floating Point Data N/A

Interface RS-232-C / RS-485

■ FUNCTION CODES & SUPPORTED CODES

CODE NAME

01 Read Coil Status X Digital output from the slave
02 Read Input Status X Status of digital inputs to the slave
03 Read Holding Registers X General purpose register within the slave
04 Read Input Registers X Collected data from the field by the slave
05 Force Single Coil X Digital output from the slave
06 Preset Single Registers X General purpose register within the slave
07 Read Exception Status
08 Diagnostics
09 Program 484
10 Poll 484
11 Fetch Comm. Event Counter Fetch a status word and an event counter
12 Fetch Comm. Event Log 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
16 Preset Multiple Registers X General purpose register within the slave
17 Report Slave ID Slave type / ‘RUN’ status
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

R1M-A1

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-5661 Rev.6 P. 6 / 8

■ DATA ADDRESS

ADDRESS

TYPE

DATA

FORMAT

NAME

GH2 J3 A1 D1

Coil (0X) 1 – 32 --- --- --- Y bit DO *

1

33 – 48 Y --- --- --- bit Cold junction compensation SW

(0: Disable, 1: Enable) *

2

Input Status (1X) 1 – 32 Y Y Y --- bit DI *

3

33 – 48 Y Y --- --- bit ADC overrange

Input Register (3X) 1 – 16 Y --- --- --- I AI in % (1 – 8 for Type J3)

17 – 48 Y Y --- --- F AI per channel in engineering unit
49 – 50 Y --- --- --- F Cold junction temperature *

2

81 – 96 Y Y --- --- I Channel status

513 Y Y Y Y I Bit System Status

0 to 5 Reserved for system use
6 E

2

PROM diagnostics (0: Normal, 1: Error)
7 ADC error (0: Normal, 1: Error)
8 to 15 Reserved for system use

514 – 521 Y Y Y Y B16 Model No. (“R1M-x”)
522 – 529 Y Y Y Y B16 Serial No.
530 – 537 Y Y Y Y B16 Hardware version No.
538 – 545 Y Y Y Y B16 Firmware version No.

Holding Register
(4X)

1 – 16 --- --- --- --- I (Reserved for AO in %)

17 – 48 --- --- --- --- F (Reserved for AO in engineering unit)
145 – 160 Y Y --- --- I I/O type No.
161 – 176 Y --- --- --- I Burnout type (161 – 168 for Type J3)

(0: No burnout, 1: Upscale, 2: Downscale) *

4

I = 16-bit integer, F = 32-bit floating, B16 = 16-byte character

*1. Discrete output only.
*2. Thermocouple input only.
*3. Trigger contact input for Types GH2 and J3. (Only Address 10001 is enabled.)
*4. Same setting for all channels. For potentiometer inputs, always leave certain residual resistance at 0% side in order to avoid

wrong burnout detection. (0% input or shortcircuit across the terminals 1 – 2 =Wire breakdown at the terminal 3)

ADDRESS DATA FORMAT NAME
Input Status (1X) 1 – 32 bit (1 bit) Contact Input
Input Register (3X) 1 – 32 Unsigned Long (32 bits) Totalized Value
Holding Register (4X) 1 – 32 Unsigned Long (32 bits) Counter Preset Value

■DATA ADDRESS (COUNTER)

Sign

Address n+1

• 32-bit Floating

Address n

Exponent Mantissa

Address n, High-order

• 32-bit Integer, No sign (R1M-A1)

Address n+1, Low order

High order bytesHigh order bytes Low order bytesLow order bytes

■ INPUT DATA

R1M-A1

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-5661 Rev.6 P. 7 / 8

■ INPUT REGISTERS DESCRIPTION

(1) ANALOG INPUT IN % (30 001 to 30016; 30001 to 30008 for J3)

Indicates analog input values in percentage for each channel (1 – 16; 1 – 8 for J3).

INPUT TYPE & RANGE A/D DATA (Decimal)

DC ±20 V ±20000

±5 V ±5000
±1 V ±10000
±0.8 V ±8000
±0.2 V ±20000
±50 mV ±5000
±10 mV ±10000

Thermocouple Temperature

5 10

RTD Temperature

5 10

Potentiometer 0 – 100 Ω

0 – 500 Ω
0 – 1 kΩ
0 – 10 kΩ

±2000

(2) ANALOG INPUT IN ENGINEERING UNIT (30 017 to 30048; 30017 to 30032 for J3)

Indicates analog input values in engineering unit for each channel (1 – 16; 1 – 8 for J3). The unit is specific to each input
type: °C for temperature, Volts for voltage, and % for potentiometer. The data are 32-bit floating values, which requires two
consecutive registers for one module.

(3) CHANNEL STATUS (30081 to 30096)

Indicates the current status of analog inputs (1 – 16; 1 – 8 for J3). The following list shows the names and descriptions of
each bit.

BIT NAME DESCRIPTION

6 Input Overrange Indicates the designated analog input is in overrange, defined as one or

more of the following condition:

•ADCinputvalue0x0000or0xFFFF

•Burnoutstatusforthermocouple,RTDandPotentiometerinput

•Outofrangedenedinthetemperaturetable(thermocoupleandRTD)

•ADCerror

0 : Normal
1 : Overrange

7 ADC Error Indicates the status of ADC.

0 : Normal
1 : Error

12 Cold Junction Compensation SW Indicates whether the cold junction compensation is enabled or disabled,

for thermocouple input.
0 : Disable
1 : Enable

Others Reserved For system’s use

R1M-A1

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-5661 Rev.6 P. 8 / 8

■ INPUT REGISTERS DESCRIPTION

Indicates I/O type for each channel. The data are 16-bit integer values.

MODEL I/O I/O TYPE SELECTION USABLE RANGE NOTES

R1MS-GH3
R2M-2G3

DC input

0x00 -10 to +10 V -10 to +10 V

R1M-GH2 DC input 0x00 -20 to +20 V -22.7 to +22.7 V ATT SW ON

0x01 -5 to +5 V -5.6 to +5.6 V ATT SW ON
0x02 -1 to +1 V -1.4 to +1.4 V ATT SW ON
0x03 -800 to +800 mV -860 to +860 mV
0x04 -200 to +200 mV -215 to +215 mV
0x05 -50 to +50 mV -53 to +53 mV
0x06 -10 to +10 mV -13.4 to +13.4 mV

R1M-GH2
R1MS-GH3
R2M-2H3

T/C input 0x10 (PR) 0 to 1770°C

0x11 K (CA) -270 to +1370°C
0x12 E (CRC) -270 to +1000°C
0x13 J (IC) -210 to +1200°C
0x14 T (CC) -270 to +400°C
0x15 B (RH) 100 to 1820°C
0x16 R -50 to +1760°C
0x17 S -50 to +1760°C
0x18 C (WRe 5-26) 0 to 2320°C

0x19 N -270 to +1300°C
0x1A U -200 to +600°C
0x1B L -200 to +900°C
0x1C P (Platinel II) 0 to 1395°C

R1M-J3 RTD input 0x30 JPt 100 (JIS ’89) -200 to +500°C

0x31 Pt 100 (JIS ’89) -200 to +660°C

0x32 Pt 100 (JIS ’97, IEC) -200 to +850°C

0x33 Pt 50 Ω (JIS ’81) -200 to +649°C

0x34 Ni 508.4 Ω -50 to +280°C

0x35 Pt 1000 -200 to +850°C

POT input 0x40 0 to 100 ohms 0 to 100 %

0x41 0 to 500 ohms 0 to 100 %

0x42 0 to 1 kohms 0 to 100 %

0x43 0 to 10 kohms 0 to 100 %

R1M-D1 DO 0x60
R1M-A1 DI 0x70

CHECKING

1) Terminal wiring: Check that all cables are correctly con­nected according to the connection diagram.

2) Power input: Check supply voltage.

ADJUSTMENT PROCEDURE

This unit is calibrated at the factory to meet the ordered
specifications, therefore you usually do not need any cali­bration.