Autonics ARIO-C-MR User manual

ARIO-C-MR
Modbus/RTU Compatible
User Manual ÊÊÊ MTO-ARIOCMRU1-V2.0-2200US

Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê5
Manual Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê7
Common Symbols in the Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê9
Safety Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê11
1. Reference Manuals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê13
2. Overview of the ARIO-C-MR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê15
2.1. Modbus/RTU Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê15
2.2. Unit Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê16
2.3. Communication Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê18
2.4. Assign the Node Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê19
2.4.1. Assign the Node Address in the DAQMaster. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê19
2.5. Set the Baud Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê20
2.6. Connections of the Power Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê21
3. Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê23
3.1. LEDs for the Coupler Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê24
3.2. LEDs for the Field Network Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê25
4. Process Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê27
4.1. Memory Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê27
4.2. Data Processing in the Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê28
4.2.1. Check the Data of the Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê29
4.3. Example of the Process Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê30
4.3.1. Input Process Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê32
4.3.2. Output Process Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê32
4.3.3. Mapping of the Coupler Diagnostic Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê33
5. Function Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê35
5.1. 04 (0x04) Read Input Register (3x) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê36
5.1.1. The Model Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê36
5.1.2. The Number of Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê36
5.1.3. The Diagnostic Data of Coupler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê36
5.1.4. The Configuration Information of the Modbus/RTU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê37
5.1.5. The Input Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê37

5.2. 03 (0x03) Read Holding Register (4x). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê38
5.2.1. The Configuration Information of the Modbus/RTU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê38
5.2.2. Read the Output Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê38
5.3. 06 (0x06) Write Single Register / 16 (0x10) Write Multiple Registers. . . . . . . . . . . . . . . . . . . . . . . . . Ê39
5.3.1. Write the Modbus/RTU Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê39
5.3.2. Write the Output Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê39
6. DAQMaster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê41
6.1. Configure the Modbus/RTU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê41
6.1.1. Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê41
6.1.2. Add Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê43
6.1.3. Add Tags. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê48
6.1.4. Monitor the Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê50
6.2. Monitor the ARIO Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê51
6.3. Update the Firmware Version. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê54
7. Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê55
8. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê57
8.1. Electrical/Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê57
8.2. Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê58
9. Communication Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê59
9.1. RS-485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê59
9.2. ABUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ê59

Preface
Thank you for purchasing Autonics products.
Be sure to read and follow the Safety Precautions thoroughly before use.
This manual contains information about the product and how to use it properly, so keep it in a place
where users can easily find it.
Preface 5

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Manual Guide
•Use the product after fully reading the contents of the manual.
•The manual explains the product functions in detail and does not guarantee the contents other than
the manual.
•Any or all of the manual may not be edited or copied without permission.
•The manual is not provided with the product.
•Download and use from our website (www.autonics.com).
•The contents of the manual are subject to change without prior notice according to the improvement
of the product’s performance, and upgrade notices are provided through our website.
•We put a lot of effort to make the contents of the manual a little easier and more accurate.
Nevertheless, if you have any corrections or questions, please feel free to comment through our
website.
Manual Guide 7

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Common Symbols in the Manual
Failure to follow instructions may result in serious injury or death.
Failure to follow instructions may result in injury or product damage.
Supplementary explanation of the function
Example of that function
Important information about the feature
Common Symbols in the Manual 9

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Safety Considerations
Observe all 'Safety Considerations' for safe and proper operation to avoid hazards.
Warning
1. Fail-safe device must be installed when using the unit with machinery that may cause serious injury
or substantial economic loss. (e.g., nuclear power control, medical equipment, ships, vehicles,
railways, aircraft, combustion apparatus, safety equipment, crime/disaster prevention devices, etc.)
Failure to follow this instruction may result in personal injury, fire or economic loss.
2. Do not use the unit in the place where flammable/explosive/corrosive gas, high humidity, direct
sunlight, radiant heat, vibration, impact, or salinity may be present.
Failure to follow this instruction may result in explosion or fire.
3. Do not disassemble or modify the unit.
Failure to follow this instruction may result in fire.
4. Do not connect, repair, or inspect the unit while connected to a power source.
Failure to follow this instruction may result in fire.
5. Check ‘Connections’ before wiring.
Failure to follow this instruction may result in fire.
Caution
1. Use the unit within the rated specifications.
Failure to follow this instruction may result in fire or shortening the life cycle of the product.
2. Use dry cloth to clean the unit, and do not use water or organic solvent.
Failure to follow this instruction may result in fire or electric shock.
3. When connecting the power input and output, use AWG 22-16 cable and check the connecting
method of crimp terminal.
Failure to follow this instruction may result in fire or malfunction due to contact failure.
4. Keep metal chip, dust, and wire residue from flowing into the unit.
Failure to follow this instruction may result in fire or product damage.
5. Do not connect or disconnect connector (terminal) wire or power, when the product is operating.
Failure to follow this instruction may result in fire or malfunction of the product.
Safety Considerations 11

Cautions during Use
1. Follow instructions in ‘Cautions during Use’. Otherwise, It may cause unexpected accidents.
2. BUS power and I/O power should be insulated by the individually insulated power device.
3. Power supply should be insulated and limited voltage/current or Class 2, SELV power supply device.
4. Use the rated standard cables and connectors. Do not apply excessive power when connecting or
disconnecting the connectors of the product.
5. Keep away from high voltage lines or power lines to prevent inductive noise.
In case installing power line and input signal line closely, use line filter or varistor at power line and
shielded wire at input signal line. For stable operation, use shield wire and ferrite core, when wiring
communication wire, power wire, or signal wire.
6. Do not use near the equipment which generates strong magnetic force or high frequency noise.
7. Do not touch the module communication connector part of the base.
8. Do not connect, or remove the base while connected to a power source.
9. For removing the terminal, body or base, do not operate units for a long time without it.
10. This unit may be used in the following environments.
① Indoors (in the environment condition rated in ‘Specifications’)
② Altitude max. 2,000 m
③ Pollution degree 2
④ Installation category II
The specifications and dimensions of this manual are subject to change without any notice for product
improvement. Be sure to read and follow the considerations written in the instruction manual, other
manuals, and technical information on our Autonics website.
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1. Reference Manuals
Be sure to read the reference manuals below to use the product correctly and follow
the precautions written in these manuals.
You can download the reference manuals on our Autonics website.
Installation manual It contains information for you to setup and install the ARIO Unit.
1. Key features of ARIO Series
2. Environmental conditions and handling method for
installation
3. Installation precautions
4. Instructions about maintenance, etc.
1. Reference Manuals 13

Coupler manual It contains information for you to configure and use the coupler
in the field network.
1. Communication protocol overview
2. Hardware information: specifications, indicators, connection
diagram, and dimensions, etc.
3. Software information: process images, and mapping
information, etc.
Module manual It contains information on the modules provided by Autonics.
1. Hardware information: specifications, indicators, connection
diagram, and dimensions, etc.
DAQMaster user manual It contains information and usage guides on ARIO-related
functions supported by DAQMaster, the comprehensive device
management program.
1. Change properties of the coupler and modules
2. Module configuration via virtual mode
3. Check the address map of the Unit
4. Check the diagnostic information of the coupler
5. Update the firmware version of the coupler, etc.
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2. Overview of the ARIO-C-MR
2.1. Modbus/RTU Protocol
The Modbus protocol is commonly used to connect industrial devices because it is relatively easy to
implement and can be communicated with robust connections. The versions of Modbus are
categorized based on Ethernet and Serial communication: The Modbus/RTU, a type of the Fieldbus, is
the Serial-based communication designed for use with the PLC.
The ARIO-C-MR supports the Modbus/RTU protocol. This coupler composes the physical structure of
connected modules and devices and creates input and output process images linked with the data of
Modbus/RTU. The process images make it possible to experience a flexible installation environment,
such as the mixed arrangement of analog and digital modules.
2.1. Modbus/RTU Protocol 15

2.2. Unit Descriptions
1. Communication Connector It is a connector to connect with Modbus Master (Client)
such as PLC.
For detailed information on the communication cable,
refer to the 2.3, “Communication Connector”.
2. Hexadecimal Rotary Switches It is a setting switch to designate the node address of the
coupler in the Modbus communication network. You can
also set the node address in the DAQMaster.
For detailed information on addressing method,
refer to the 2.4, “Assign the Node Address”.
3. CONFIG Port It is a port to connect to the PC where DAQMaster is
installed.
1. Port type: USB Type-B Micro
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4. Indicators It displays the status of the coupler and communication
connection as shown below.
For detailed information on the indicators,
refer to the 3, Indicators.
1. Power and operating status of the coupler
2. Modbus communication status
5. Power Supply Terminal It is a terminal block that supplies power to the coupler
and peripherals.
For detailed information on the device supply,
refer to the 2.6, “Connections of the Power Terminal”.
6. Power Supply contacts It is a contact that feeds the power input from the power
supply terminal.
1. Top input contacts: feed the power supply for the
coupler, module, and ABUS to be operated.
2. Bottom input contacts: feed the power supply for
input and output signals of the connected module.
2.2. Unit Descriptions 17

2.3. Communication Connector
•Be sure to use the connector and cable approved by the Modbus Organization.
Otherwise, use a connector and cable that meets the specifications of at least
EIA RS-485.
•Be sure not to exceed the cable length of 1000 meters.
The 5-pin PCB connector is used for Modbus/RTU communication connection.
For more information on the pin assignment, refer to the table below.
Pin no. Marking on the connector Color Description
1 NC: Not Connected Red Not used
2 DG: Data Ground Black Grounding for the signals
3 FG: Frame Ground - Shielding / Grounding
4 DB: DATA B White RS-485 low signal
5 DA: DATA A Blue RS-485 high signal
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2.4. Assign the Node Address
•It is recommended to designate the node address of the coupler the same as the
value of the rotary switches.
•The node address cannot be applied while the coupler is operating.
•Be sure to start the coupler again to apply the changed node address.
•The maximum number of nodes is up to 32 nodes within a single segment.
You can assign the coupler’s node address via two hexadecimal rotary switches.
Assign mode Rotary switches (x16, x1) Node address
Default node address 0x00 3
The node address of the coupler 0x01 to 0xFF 1to 255
2.4.1. Assign the Node Address in the DAQMaster
1. Set the positions of the coupler’s rotary switches to 0x00.
2. To designate the node address in the DAQMaster, go to the Comm Mode »Property tab of the
coupler »Node Address and press the Enter key.
3. Reset the ARIO unit in the DAQMaster.
4. The node address assigned by the DAQMaster is applied.
2.4. Assign the Node Address 19

2.5. Set the Baud Rates
To select the baud rates in the DAQMaster, go to Comm Mode »Property tab of the coupler »Baud
Rate and click the drop-down menu.
Baud rates (bps) Setting values
2400 0
4800 1
9600 2 (factory setting)
19200 3
38400 4
57600 5
115200 6
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