INSTRUCTION MANUALMECHATROLINK I/O MODULE(thermocouple input, 4 points, isolated, screw terminal block,
MECHATROLINK- III use)

MODEL

R7G4HML3-6-TS4

BEFORE USE ....

POINTS OF CAUTION

Thank you for choosing us. 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 our sales office or representatives.

■ CONFORMITY WITH EU DIRECTIVES• The equipment must be mounted inside the instrument
panel of a metal enclosure.
• 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.

■ PACKAGE INCLUDES:
Thermocouple input module (body + 4 CJC sensors).........(1)DIN rail mounter slider.......................................................(2)■ MODEL NO.
Confirm Model No. marking on the product to be exactly
what you ordered.
■ INSTRUCTION MANUALThis manual describes necessary points of caution when
you use this product, including installation, connection andbasic maintenance procedures.

■ POWER INPUT RATING & OPERATIONAL RANGE• Locate the power input rating marked on the product andconfirm its operational range as indicated below:		 24V DC rating: 24V ±10%, approx. 100mA■ GENERAL PRECAUTIONS• Before you remove the unit or mount it, turn off the power
supply and input signal for safety.
• Before you remove the terminal block or mount it, makesure to turn off the power supply and input signal forsafety.
■ ENVIRONMENT• Indoor use.
• When heavy dust or metal particles are present in theair, install the unit inside proper housing with sufficientventilation.
• 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.
• Be sure to close the terminal cover for safety.
■ AND ....
• The unit is designed to function as soon as power is supplied, however, a warm up for 10 minutes is required forsatisfying complete performance described in the datasheet.

MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEM-7772-C Rev.4

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R7G4HML3-6-TS4

COMPONENT IDENTIFICATION
Station Address Setting
Rotary SWMECHATROLINK- IIIConnectors

PC Configurator Jack

Status Indicator Led

SA1×10PWR CON LNK2SA2×1ERR LNK1CNFG
LNK1LNK2451627310 11 12 13 14 15 16 17 1812345Power Supply Terminals■ STATUS INDICATOR LEDID
PWR

COLOR
Green

ERR

Red

CON

Green

LNK1Green

LNK2Green

BCDE

89Input Terminals■ POWER SUPPLY TERMINAL ASSIGNMENT

4567
NC NC ＋24V 0V
123NC NC FE

1. NC
2. NC
3. FE
4. NC
5. NC
6. +24V
7. 0V

Functional earth
Power supply (24V DC)
Power supply (0V)

■ INPUT TERMINAL ASSIGNMENT
101112131415161718+IN0 –IN0 +IN1 –IN1 NC +IN2 –IN2 +IN3 –IN3123456789+CJ0 –CJ0 +CJ1 –CJ1 NC +CJ2 –CJ2 +CJ3 –CJ3F0 123 456

7 8 9A

3 456

BCDE

7FUNCTION
Turns on when the internal power issupplied normally.
Turns on at MECHATROLINK-III
communication error
Turns on at MECHATROLINK-III
connection is established
Turns on at MECHATROLINK-III
LNK1 is established
Turns on at MECHATROLINK-III
LNK2 is established■ STATION ADDRESS
Station Address is selected between 03H and EFH in hexadecimal.
The SA1 switch determines the MSD, while the SA2 switch
does the LSD of the address.
(Factory setting: 03H)
F0 1267 8 9A

Station Address Setting (LSD)
Station Address Setting (MSD)NO.
123456789ID+CJ0–CJ0+CJ1–CJ1
NC+CJ2–CJ2+CJ3–CJ3

MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANFUNCTIONCJC + 0CJC – 0CJC + 1CJC – 1No connectionCJC + 2CJC – 2
CJC + 3
CJC – 3NO.
101112131415161718ID+IN0–IN0+IN1–IN1
NC+IN2–IN2+IN3–IN3

FUNCTION
T/C + 0T/C – 0T/C + 1
T/C – 1
No connection
T/C + 2
T/C – 2T/C + 3
T/C – 3

EM-7772-C Rev.4

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R7G4HML3-6-TS4

PC CONFIGURATOR
The following parameter items can be set with using PC Configurator Software (model: R7CFG).
Refer to the users manual for the R7CFG for detailed operation of the software program.
■ CHANNEL INDIVIDUAL SETTING
PARAMETER
Validating/Invalidating
Sensor type

Temperature unit

Burnout
Bias
Gain
Zero scale
Full scale
Input 0 %Input 100 %SETTING RANGE
ValidInvalid
K (CA)E (CRC)
J (IC)T (CC)
B (RH)RS
C (WRe 5-26)
NU
L
P (Platinel II)
(PR)
°C
°F
K
Up
Down
-320.00 to +320.00 (%)-3.2000 to +3.2000-32 000 to +32 000-32 000 to +32 000
Depends on sensor type
Depends on sensor type

DEFAULT SETTINGValid
K (CA)°CUp
0.00 (%)
1.0000010 000
0.000.00■ CHANNEL BATCH SETTING
PARAMETER
Averaging

SETTING RANGE
ValidInvalid

DEFAULT SETTINGValid

MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEM-7772-C Rev.4

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R7G4HML3-6-TS4

MOUNTING INSTRUCTIONS■ DIN RAIL MOUNTING (PARALLEL)• Mounting
1) Set the upper hook at the rear side of the unit on the DINrail.

• Dismounting
1) Push down the DIN rail mounter slider with tip of a minus screwdriver.

2) Push in the lower.

3) Remove the upper hook of the unit from the DIN rail.

2) Pull the lower of the unit.

22311• Dismounting
1) Push down the DIN rail mounter slider with tip of a minus screwdriver.

■ SURFACE MOUNTING
1) Insert the two DIN rail mounter sliders until it clicks
once, as shown below.

2) Pull the lower of the unit.
3) Remove the upper hook of the unit from the DIN rail.

1122) Mount the unit with M4 screws referring the External
Dimensions. (Torque: 1.4 N·m)
31

■ DIN RAIL MOUNTING (RIGHT ANGLE)• Mounting
1) Insert the longer DIN rail mounter slider until it clicks
twice, as shown below.

12) Set the upper hook at the rear side of the unit on the DINrail.
3) Push in the lower.
32MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEM-7772-C Rev.4

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R7G4HML3-6-TS4

TERMINAL CONNECTIONSConnect the unit as in the diagram below.
■ EXTERNAL DIMENSIONS unit: mm (inch)
154 (6.06)
140 (5.51)
130 (5.12)

57 (2.24)

50 (1.97)

DIN RAIL
35mm wide

45627103

11121231341451561671781897(.28)

3(.12) 5(.20)

162−4.3 dia.
4 deep67−M3 SCREWTERMINALS for POWER[(4) 0.16](2−.17 dia.
.16 deep)18−M3 SCREWTERMINALS for INPUT■ CONNECTION DIAGRAM
Note: In order to improve EMC performance, bond the FE terminal to ground.
Caution: FE terminal is NOT a protective conductor terminal.
■ INPUT CONNECTION EXAMPLES−IN0 10INPUT 0+CJ01−CJ02+IN1 12

MECHATROLINK-III
CONNECTOR+IN0 11

Thermocouple++INn-−INn

CJC+CJn−CJn−IN1 13+CJ13−CJ14+IN2 15−IN2 16INPUT 2INPUT 3+CJ26−CJ27MEC H A TR OLI NK -III
CONNECTOR

INPUT 13 FE+IN3 176 24V DC−IN3 187 0V+CJ38−CJ39MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEM-7772-C Rev.4

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R7G4HML3-6-TS4

MOUNTING REQUIREMENTS unit: mm (inch)

WIRING INSTRUCTIONS■ TORQUE
Wiring screw for separable terminal: 0.5 N∙mFixing screw for separable terminal: 0.5 N∙m140 (5.51)
2 – M4■ SOLDERLESS TERMINAL
Refer to the drawing below for recommended ring tongue
terminal size. Spade tongue type is also applicable.
Applicable wire size: 0.25 to 1.65 mm2 (AWG 22 to 16)
Recommended manufacturer: Japan Solderless Terminal
MFG. Co., Ltd, Nichifu Co., Ltd

6 (.24) max

3.3 (.13) maxmm (inch)■ HOW TO UNMOUNT THE SEPARABLE TERMINALThe separable terminal of the unit is 2 piece constructions.
It is possible to remove the terminal by loosening two screwsof terminal alternately.

MECHATROLINK-III COMMUNICATION
Transmission cycle: 125 µsec., 250 µsec., 500 µsec., 1 – 64 msec. (with 1 msec. increments)
Communication cycle: 125 µsec. through 64 msec.
Applicable profile: Standard I/O profile (cyclic communication) 
Event-driven communication acquiring ID profile (event-driven communication)
Transmission bytes: 16 bytes
Station address: 03H through EFH (set with rotary switches)
Cyclic communication: Available
Event-driven communication: Available
Slave monitoring: None

MECHATROLINK-III RELATED COMMANDS
Commands available with this unit are the following.
PROFILECOMMANDCODE

FUNCTION

Common command

NOP

00H

No operation command

ID_RD03H

Read ID command

CONFIG04H

Setup device command

ALM_RD

05H

Read alarm or warning command

ALM_CLR

06H

Clear alarm or warning command

CONNECT

0EH

Establish connection command

DISCONNECT

0FH

Release connection command

DATA_RWA

20H

Transmit I/O data

Standard I/O profile• NOP (00H)
Does nothing except sending back current status
BYTE

COMMANDRESPONSE

REMARKS0NOP (00H)

NOP (00H)

No operation command

100H

00H

Not used2

CMD_CTRLCMD_STAT

Refer to CMD_CTRL/CMD_STAT.

00H

00H

Reserve

3≥4

MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEM-7772-C Rev.4

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R7G4HML3-6-TS4• ID_RD (03H)
Reads the product ID.
BYTE

COMMANDRESPONSE

REMARKS

0ID_RD (03H)

ID_RD (03H)

Read ID command

100H00H

Not used2

CMD_CTRLCMD_STAT

Refer to CMD_CTRL/CMD_STAT.

4

ID_CODE

ID_CODE

Refer to ID_CODE

5OFFSETOFFSET

OFFSET: designates the place to read data

6SIZE

SIZE

SIZE: specify the size of data to read00HID

Product’s ID

37≥8• CONFIG (04H)
No parameter to set for this unit. Immediately response with completion.
BYTE

COMMANDRESPONSE

REMARKS

0

CONFIG (04H)

CONFIG (04H)

Setup device command

100H00H

Not used2

CMD_CTRLCMD_STAT

Refer to CMD_CTRL/CMD_STAT.

400H

00H

Recalculation of parameters and set up. Other than 00H is
not supported.

≥500H

00H

Reserve

3• ALM_RD (05H)
Reads alarm or warning
BYTE

COMMANDRESPONSE

REMARKS0

ALM_RD (05H)

ALM_RD (05H)

Read alarm or warning command

100H

00H

Not used2

CMD_CTRLCMD_STAT

Refer to CMD_CTRL/CMD_STAT.

0000H

0000H

Read current alarm or warning.
12 points max. (2 bytes in 8th to 31st byte)
Other than 0000H is not available.

0000H

0000H

000H00H034567≥8• ALM_CLR (06H)
Clears alarm or warning
BYTE

COMMANDRESPONSE

REMARKS0

ALM_CLR (06H)

ALM_CLR (06H)

Clear alarm or warning command

100H

00H

Not used2

CMD_CTRLCMD_STAT

Refer to CMD_CTRL/CMD_STAT.

0000H

0000H

Clear current alarm or warning. Other than 0000H is notavailable.

00H00HReserve345≥6MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEM-7772-C Rev.4

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R7G4HML3-6-TS4• CONNECT (0EH)
Starts communication with master station.
BYTE

COMMANDRESPONSE

REMARKS

0CONNECT (0EH)

CONNECT (0EH)

Establish connection command

100H00H

Not used2

CMD_CTRLCMD_STAT

Refer to CMD_CTRL/CMD_STAT.

430H

30H

MECHATROLINK application layer: 30H

500H00H

Communication mode: Asynchronous, single transmission,
subcommand disabled

6COM_TIME

COM_TIME

Communication cycle: Multiple of transmission cycle.
E.g. Transmission cycle: 0.5 msec., communication cycle: 2msec. Set 4 (=2/0.5)

730H or 01H

30H or 01H

Profile type
30H: Standard I/O profile
01H: Event-driven communication acquiring ID profile≥800H00HReserve3• DISCONNECT (0FH)
Stops communication with master station.
BYTE

COMMANDRESPONSE

REMARKS

0DISCONNECT (0FH)

DISCONNECT (0FH)

Release connection command≥100H00HReserve• DATA_RWA (20H)
Transmits I/O data to master station. Data allocation is following.
Data size is 16 bytes.
BYTE
0123456789101112131415COMMANDDATA_RWA (20H)
00HCMD_CTRLRESPONSE
DATA_RWA (20H)
00H
CMD_STATREMARKS
Transmit I/O data
Not used
Refer to CMD_CTRL/CMD_STAT.

00H00H00H00H00H00H00H00H00H00H00H00H

CH0 IN LO
CH0 IN HI
CH1 IN LO
CH1 IN HI
CH2 IN LO
CH2 IN HI
CH3 IN LO
CH3 IN HISTATUS LO
STATUS HI
00H00H

Lower byte of CH0
Upper byte of CH0
Lower byte of CH1
Upper byte of CH1
Lower byte of CH2
Upper byte of CH2
Lower byte of CH3
Upper byte of CH3
Lower byte of R7G4HML3 status
Upper byte of R7G4HML3 status
Not usedNot used

MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEM-7772-C Rev.4

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R7G4HML3-6-TS4

CMD_CTRLCMD_CTRL command area is following.
BIT

FUNCTION

REMARKS

0–2

Reserve

Not used3

ALM_CLR

0: Clear alarm/warning disabled
1: Clear alarm/warning triggered

4–5

Reserve

Not used

6–7

CMD_ID

Not used in the standard I/O command profile

8 – 15Reserve

Not used

CMD_STATCMD_STAT response area is following.
BIT

FUNCTION

REMARKS0

D_ALM

Not used

1

D_WARNot used

2

CMDRDY

1: Command reception enabled
0: Other

3

ALM_CLR_CMP

1: Completion of execution of ALM_CLR
0: Other
ALM_CLR_CMP can be canceled by setting ‘0’ for ALM_CLR in CMD_CTRL commandarea.

4–5

Reserve

Not used

6–7

RCMD_ID

Not used in the standard I/O command profile

8 – 11

CMD_ALM

Warning

0: Normal, 1: Invalid data

Alarm

8: Unsupported command received, 9: Invalid data, A: Command execution condition error, B: Subcommand combination error, C: Phase error

Warning

0: Normal, 1: FCS error, 2: Command data not received, 3: Synchronous
frame not received

Alarm

8: FCS error, 9: Command data not received, A: Synchronous frame notreceived, B: Synchronization time interval error, C: WDT error

12 – 15

COMM_ALM

MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEM-7772-C Rev.4

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R7G4HML3-6-TS4

ID_CODE
ID_CODE is following.
ID_CODE NAME
01H
02H
03H
04H
05H
06H

Vendor ID CodeDevice CodeDevice Version
Device Definition File version
Extended Address Setting
Serial No.

10H11H
12H
13H
14H
15H
16H
17H
18H

Profile Type 1
Profile Version 1
Profile Type 2
Profile Version 2
Profile Type 3
Profile Version 3
Min. Transmission Cycle
Max. Transmission Cycle
Increments of Transmission
Cycle
Min. Communication Cycle
Max. Communication Cycle
Transmission Bytes
Transmission Bytes (CurrentSetting)
Profile Type (Current Selection)
Supported Communication
Mode
MAC Address
List of Supported Main Commands

19H
1AH
1BH
1CH
1DH

SIZE
VALUE
SUPPORT
REMARKS(BYTES)(HEXADECIMAL)
4
Yes
0x00000021
M-SYSTEM CO., LTD.
4Yes
0x00000203
R7G4HML3-6-TS4
4Yes
Firmware version E.g. 1.00 -> 0x0064
4Yes
0x00001000
4Yes
0x00000001
32
Yes
Unit serial
E.g. AB123456 -> 0x32314241
number0x36353433
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
4Yes
0x00000030
Standard I/O profile
4
Yes
0x00000100
4Yes
0x000000FF
Indicates the unit does not support
4Yes
0x00000000
4Yes
0x000000FF
Indicates the unit does not support
4Yes
0x00000000
4Yes
0x000030D4
125 µsec.
4Yes
0x0061A800
64 msec.
4Yes
0x00000001
Available to 31.25, 62.5, 125, 250, 500 [µsec.]& 1 – 64 [msec.] (1 msec. increments)
4Yes
0x000030D4125 µsec.
4Yes
0x0061A800
64 msec.
4Yes
0x00000002
16 Bytes
4Yes
0x00000002
16 Bytes
4Yes

4Yes

432

NoYes

32

No

40H
80H

List of Supported Sub Commands
List of Common Parameters
Main Device Name

3232

No
Yes

90H
98H
A0H
A8H
B0H
B8H

Sub Device 1 Name
Sub Device 1 Version
Sub Device 2 Name
Sub Device 2 Version
Sub Device 3 Name
Sub Device 3 Version

432
432
432

NoNo
No
NoNo
No

20H
21H
30H

38H

0x00000001 /0x00000030
0x00000003---0x0000C079
0x00000001
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000------0x34473752
0x334C4D48
0x532D362D
0x00003453
0x00000000
0x00000000
0x00000000
0x00000000-------------------MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEvent-driven communication / Cyclic communication
Event-driven communication / Cyclic communication
ALM_CLR, ALM_RD, CONFIG, ID_RD,NOP, DISCONNECT, CONNECT,
DATA_RWA“R7G4HML3-6-TS4”

EM-7772-C Rev.4

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R7G4HML3-6-TS4I/O DATA DESCRIPTION■ ANALOG INPUT MODULE
Byte n+17

Byte n0 70

Data is represented in 16-bit binary. Negative value is represented in 2’s complements.

■ STATUS
Byte137

Byte120 70

CH0: Burnout
CH1: Burnout
CH2: Burnout
CH3: Burnout
CH0: ADC error
CH1: ADC error
CH2: ADC error
CH3: ADC error
Not used (fixed to 0)
Burnout
0: normal, 1: burnout
ADC error (no response from ADC)
0: normal, 1: error

MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEM-7772-C Rev.4

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