Omron GRT1-CRT - 05-2008 User manual

CompoNet Communications Unit
Cat. No. W476-E1-01
SmartSlice
GRT1-CRT
OPERATION MANUAL

SmartSlice
GRT1-CRT
CompoNet Communications Unit
Operation Manual
Produced May 2008

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Introduction
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Introduction
Thank you for buying a SmartSlice CompoNet Communications Unit.
The CompoNet Communications Unit is an interface unit which complies with the CompoNet
standard. It connects SmartSlice I/O Units to a CompoNet Master Unit.
Be sure you understand the functions and performance of the Units fully before you use them.
Intended Audience
This manual is for the personnel below. This personnel must understand electrical systems (must
be an electrical engineer or the equivalent).
Personnel responsible for the selection of FA systems
Personnel responsible for the designs of FA systems
Personnel responsible for the installation of and connections in FA systems
Personnel responsible for the management of FA systems
Precaution
This manual contains data which is necessary for you to use a CompoNet Communications Unit.
Read and understand this manual fully before you use the CompoNet Communications Unit. After
you read this manual, keep it in a safe location where it will be available for use when necessary.
Be sure that the end user of the CompoNet Communications Unit has this manual.

Read and Understand this Manual
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Read and Understand this Manual
Please read and understand this manual before using the product. Please consult your OMRON
representative if you have any questions or comments.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship
for a period of one year (or other period if specified) from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING
NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE
PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR
INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL
DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE
PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR
STRICT LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on
which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS
REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS
WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO
CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.

Read and Understand this Manual
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Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to
the combination of products in the customer's application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying
ratings and limitations of use that apply to the products. This information by itself is not sufficient for a
complete determination of the suitability of the products in combination with the end product, machine,
system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not
intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the
uses listed may be suitable for the products:
• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions
or uses not described in this manual.
• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical
equipment, amusement machines, vehicles, safety equipment, and installations subject to separate
industry or government regulations.
• Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR
PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO
ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.

Read and Understand this Manual
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Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other
reasons.
It is our practice to change model numbers when published ratings or features are changed, or when
significant construction changes are made. However, some specifications of the products may be
changed without any notice. When in doubt, special model numbers may be assigned to fix or establish
key specifications for your application on your request. Please consult with your OMRON representative
at any time to confirm actual specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when
tolerances are shown.
PERFORMANCE DATA
Performance data given in this manual is provided as a guide for the user in determining suitability and
does not constitute a warranty. It may represent the result of OMRON's test conditions, and the users
must correlate it to actual application requirements. Actual performance is subject to the OMRON
Warranty and Limitations of Liability.
ERRORS AND OMISSIONS
The information in this manual has been carefully checked and is believed to be accurate; however, no
responsibility is assumed for clerical, typographical, or proofreading errors, or omissions.

Safety Precautions
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Safety Precautions
Safety Indications
The indications below are used in this manual for safety precautions which are necessary to use the
CompoNet Communications Unit safely. The contents of these safety precautions are important. Al-
ways obey them.
These are the indications for safety precautions.
• “Precautions for Safe Application” shows the operations that you must do or
not do to use the product safely.
• “Precautions for Correct Application” shows operations that you must do or not
do to make sure that the product operates, prevent malfunctions, and prevent
bad effects on performance and functions.
WARNING
Caution
Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
Additionally, there may be severe property damage.
Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury, or property
damage.
Precaution for
Safe Usage
Precaution for
Correct Usage

Safety Precautions
x
Descriptions of Symbols
This symbol shows operations that you must not do.
The specified operation shows in the circle.
This example shows “do not disassemble.”
This symbol shows precautions (including warnings).
The specified operation shows in the triangle.
This example shows a general precaution.
This symbol shows operations that you must do.
The specified operation shows in the circle.
This example shows a general precaution for something that
you must do.
WARNING
Do not try to disassemble a Unit or touch the terminal block while
the power is ON. Doing this can cause electrical shock.
Make sure that the voltage and current input to the Units are in the
specified ranges. If the voltage and current are not in the specified
ranges, there can be Unit malfunctions or fire.
Turn OFF the I/O power supply to a SmartSlice I/O Unit before you
replace it with the online replacement procedure. If there is external
power to a terminal for a Relay Output Slave, for example, turn OFF
the external power before you replace the SmartSlice I/O Unit. If
you replace a Slave I/O Unit with the power ON, incorrect outputs,
incorrect inputs, or electric shock can occur.

Safety Precautions
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Apply safety measures in external circuits (that is, not in the Smart-
Slice I/O Terminal) to keep safety in the system. These measures
must keep safety if a malfunction in the control system or other ex-
ternal factor which has an effect on the control system causes a
problem. Include the items below. Not doing this can cause serious
accidents.
• There must be emergency stop circuits, interlock circuits, limit cir-
cuits, and other safety measures in external control circuits.
• The SmartSlice outputs can stay ON or OFF because of welding
or burning of the output relays, or destruction of the output tran-
sistors. As a countermeasure for such errors, there must be ex-
ternal safety measures to keep safety in the system.
• The SmartSlice I/O Terminal will continue operating when one or
more I/O Units are missing from the SmartSlice I/O Terminal. The
other I/O Units will continue the control operations, including the
control of the outputs. As a countermeasure for such errors, there
must be external safety measures to keep safety in the system.
The CPU Unit refreshes I/O when the program is stopped in PRO-
GRAM mode. Fully make sure that it is safe before changing the
status of bits or words in memory allocated to Output Slaves, Spe-
cial I/O Units, or CPU Bus Units. If you change the bits or words al-
located to a Slave or Unit, you could cause incorrect operation of
the loads connected to the Slave or Unit. The operations below will
change memory status.
• Transferring I/O memory data to the CPU Unit from a Program-
ming Device
• Changing present values in memory from a Programming Device
• Force-setting or force-resetting bits from a Programming Device
• Transferring I/O memory files from a Memory Card or EM file
memory to the CPU Unit
• Transferring I/O memory from a host computer or from a PLC on
a network