MG R1M-GH User manual

EM-5657 Rev.11 P. 1 / 9
MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
INSTRUCTION MANUAL
THERMOCOUPLE & DC INPUT MODULE
(16 points) MODEL R1M-GH
BEFORE USE ....
Thank you for choosing us. Before use, please check con-
tents of the package you received as outlined below.
If you have any problems or questions with the product,
please contact our 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 sys-
tems) or of reliability (e.g. vehicle control or combustion con-
trol systems).
For safety, installation and maintenance of this product
must be conducted by qualified personnel.
■PACKAGE INCLUDES:
Remote I/O module (body + CJC sensor) ...........................(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 soft-
ware. For detailed information on the PC configuration,
refer to the R1CON instruction manual. The R1CON PC
Configurator Software is downloadable at our web site.
POINTS OF CAUTION
■CONFORMITY WITH EU DIRECTIVES
• This equipment is suitable for Pollution Degree 2 and
Installation Category II (transient voltage 2500V). Re-
inforced 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 re-
quirements.
• 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 con-
form to CE requirements. Failure to observe these re-
quirements may invalidate the CE conformance.
• The actual installation environments such as panel con-
figurations, connected devices, connected wires, may af-
fect 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 conform-
ity.
• Install lightning surge protectors for those wires connect-
ed 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 continu-
ous 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 ca-
bles, 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-GH
EM-5657 Rev.11 P. 2 / 9
MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
COMPONENT IDENTIFICATION
■TOP VIEW
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 T2 T3 T4 T5 T6 T7
CJC Sensor (model: CJM)
■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
DIN Rail Adaptor
DIN Rail
35mm wide
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.
Attach the CJC sensor together with input wiring to the input screw terminals. The sensor is calibrated for each particular
module and not interchangeable with another. Check the serial numbers of the module and sensor.
■EXTERNAL DIMENSIONS unit: mm (inch)
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 T2 T3 T4 T5 T6 T7
104 (4.09)
10 (.39)
105 (4.13)
14 (.55)
163 (6.42)
36–M3 INPUT TERMINALS
165 (6.50) 15.5 (.61)
175 (6.89)
FOR WALL MOUNT.
[6 (.24)]
40 (1.57)
3 (.12)
6.2 (.24)
8 (.31)
CJC SENSOR (model: CJM)
3–5 (.20) dia.
MTG HOLES
46 (1.81)
DIN RAIL
35 mm wide

R1M-GH
EM-5657 Rev.11 P. 3 / 9
MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
■CONNECTING 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.
Note 1: This device is not designed to cancel noise included in the input signals.
Be careful to eliminate such noise by using shielded cables.
Note 2: Be sure to maintain the same potential at all the common negative
terminals for DC input.
*
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
TRIGGER INPUT
T/C INPUT
–
+
DC INPUT
INPUT 1
+
–
INPUT 2
INPUT 3
INPUT 4
INPUT 5
INPUT 6
INPUT 7
INPUT 8
INPUT 9
INPUT 10
INPUT 11
INPUT 12
INPUT 13
INPUT 14
INPUT 15
INPUT 16
CJC
Sensor
+
ext. wire
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
Power
Circuit
Input
Circuit
+
–
Shielded Twisted-pair Cable
To Other
I/O Modules
Jumper*
FG
U (+)
V (–) POWER
D-SUB CONNECTOR
■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)
7
8
Clear to Send
Request to Send
1
4
6
9
Not Used.
DO NOT connect. Connecting may
cause malfunctions.

R1M-GH
EM-5657 Rev.11 P. 4 / 9
MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
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 mm2(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 mm2(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-GH
EM-5657 Rev.11 P. 5 / 9
MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
INPUT RANGE SELECTING
Select switches to match the input signal according to the table below.
SW311 SW305 SW304 SW303 SW302
SW405 SW404 SW403 SW402
SW301
O
N
2
1
3
4
5
6
7
8
SW702
SW702 is fixed to
the position 3.
DO NOT CHANGE.
SW411 SW401 SW308 SW307 SW306
SW408 SW407 SW406
O
N
2
1
3
4
5
6
7
8
INPUT SWITCHES SETTING NOTES
Thermocouple
SW301 – SW308 (ch 1 – ch 8)
SW401 – SW408 (ch 9 – ch 16) Set to position “1”
Attenuation OFF
SW311 (ch 1 – ch 8)
SW411 (ch 9 – ch 16) OFF
Voltage input, 0.8 V or less
SW301 – SW308 (ch 1 – ch 8)
SW401 – SW408 (ch 9 – ch 16) Set to position “1”
Attenuation OFF
SW311 (ch 1 – ch 8)
SW411 (ch 9 – ch 16) ON
Voltage input, above 0.8 V (*)
SW301 – SW308 (ch 1 – ch 8)
SW401 – SW408 (ch 9 – ch 16) Set to position “3”
Attenuation ON
SW311 (ch 1 – ch 8)
SW411 (ch 9 – ch 16) ON
(*) Factory default setting (For measurement range: ±5 V)

R1M-GH
EM-5657 Rev.11 P. 6 / 9
MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
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-GH
EM-5657 Rev.11 P. 7 / 9
MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
■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 E2PROM 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)
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-GH
EM-5657 Rev.11 P. 8 / 9
MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
■INPUT REGISTERS DESCRIPTION
(1) ANALOG INPUT IN % (30001 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 510
RTD Temperature 510
Potentiometer 0 – 100 Ω
0 – 500 Ω
0 – 1 kΩ
0 – 10 kΩ
±2000
(2) ANALOG INPUT IN ENGINEERING UNIT (30017 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 defined 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-GH
EM-5657 Rev.11 P. 9 / 9
MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
■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 con-
nected according to the connection diagram.
2) Power input: Check supply voltage.
3) Input: Check that the input is within 0 – 100% of full-
scale.
4) DIP SW setting: Check that all switches are set correctly.
ADJUSTMENT PROCEDURE
This unit is calibrated at the factory to meet the ordered
specifications, therefore you usually do not need any cali-
bration.
MAINTENANCE
Regular calibration procedure is explained below:
■CALIBRATION
Warm up the unit for at least 10 minutes. Apply 0%, 25%,
50%, 75% and 100% input signal. Check that the output
signal for the respective input signal remains within accu-
racy described in the data sheet. When the output is out of
tolerance, please contact our sales office or representatives.