DeviceNet Communications Unit
GRT1-DRT
DeviceNet-compliant Interface Unit with up to 1,024 I/O Points at
One Node
• Connect up to 64 SmartSlice I/O Units.
• Consolidate a large capacity of I/O points into one Slave (up to
1,024 I/O points).
• Save space by configuring different I/O types using one Slave Unit.
• Easily get the system started simply by setting the node
addresses.
• Replace SmartSlice I/O Units online while maintaining
communications. This helps minimize equipment downtime.
• Smart functions for monitoring equipment operating status. This
helps improve preventive maintenance and the utilization rate.
• Registering SmartSlice I/O for planned future expansion
decreases design work when changes are made. (Supported for
unit version 2.0 or higher.)
Ordering Information
Name
Specifications
Model
Up to 64 Slice I/O Units can be connected.
(1,024 I/O points max.)
DeviceNet Communications Unit
General Specifications
Item
Model
GRT1-DRT
Network power supply voltage
11 to 25 V DC (Supplied from the communications connector)
Unit power supply voltage
20.4 to 26.4 VDC (24 VDC -15%/+10%)
I/O power supply voltage
20.4 to 26.4 VDC *
(24 V +10%/-15%)
Noise immunity
Conforms to IEC 61000-4-4, 2 kV (power line)
Vibration resistance
10 to 60 Hz, 0.7-mm double amplitude 60 to 150 Hz: 50 m/s2
Shock resistance
150 m/s2
Dielectric strength
500 V AC between isolated circuits
Insulation resistance
20 MΩ min. between isolated circuits
Ambient operating temperature
-10°C to 55°C (with no icing or condensation)
Ambient operating humidity
25% to 85%
Ambient operating atmosphere
No corrosive gases
Ambient storage temperature
-25°C to 65°C (with no icing or condensation)
Mounting method
DIN 35 mm-track mounting
*
For power supply input to the Slice I/O Units.
68
DeviceNet Communications Unit
GRT1-DRT
GRT1-DRT
DeviceNet Communications Unit Specifications
Item
Model
GRT1-DRT
I/O points
1,024 max. (128 bytes), including inputs and outputs
Connectable Slice I/O Units
64 max.
Communications with Slice I/O Units
64 Units max. in a horizontal connection configuration (for an extension of approx. 2 m max.)
Power consumption is limited to 80 W per block, and the extension must be done using Turnback Cables
(two 1-m cables max., for a distance of 2 m max.)
Slice I/O Unit data capacity
(1) 0, 2, or 4 bits
(2) 0 to 16 words (in word increments)
Status flags
One word is allocated (Communications Unit Status Flags)
Parameter back-up and restore functions
2 KB of data can be backed up and restored per Unit
Message communications function
Supported
Automatic baud rate detection
Supported
Connector
1 DeviceNet open connector with screws Connectable with multi-drop connector
Terminals
2 terminals for I/O power supply, 2 terminals for Unit power supply
Power supply per 1 block
80 W max. (Unit power supply)
I/O power supply consumption current
4 A max.
Weight
137 g
Nomenclature and Functions
GRT1-DRT
Indicators
Indicate the condition of the DeviceNet Communications
Unit and DeviceNet network, and the communications
condition with the Slice I/O Units.
Rotary Switches
Used to set the node address for the
DeviceNet Slave. (Set in decimal.)
Node addresses from 0 to 63 can be set.
DIP Switch
Used to set the I/O allocation method, and to read and
write configuration data from and to Slice I/O Units
connected to the Communications Unit.
SW1 (REGS): Create/Enable registered table
SW2 (I/O):
Enable/Disable I/O allocation mode *
SW3 (ADR): Automatic restore
SW4 (BACK): Backup trigger
DeviceNet
Communications Connector
Connects to the communications cable
for a DeviceNet network.
* Unit version 2.0 or later.
Unit Power Supply Terminals
Supply power to the internal circuits of the Unit, and
to the internal circuits of connected Slice I/O Units.
I/O Power Supply Terminals
Supply power to external inputs and outputs connected
to the Slice I/O Units.
Dimensions
(Unit: mm)
GRT1-DRT
3
12
Overall System
SmartSlice DeviceNet
Communications Unit
Slice I/O Units
End Unit
84
80 mm
58 mm
3
24
15 mm × n Units
n = 64 max. 19.5 mm
(with current
consumption limit)
58
40
62
70
DeviceNet Communications Unit
GRT1-DRT
69
Ordering Information
Name
Appearance
DeviceNet Communications Unit
Digital I/O Units
Specifications
Model
Up to 64 SmartSlice I/O Units can be connected (1,024 I/O points).
GRT1-DRT
4 inputs, NPN
GRT1-ID4
4 inputs, PNP
GRT1-ID4-1
4 outputs, NPN
GRT1-OD4
4 outputs, PNP
GRT1-OD4-1
8 inputs, NPN
GRT1-ID8
8 inputs, PNP
GRT1-ID8-1
8 outputs, NPN
GRT1-OD8
8 outputs, PNP
GRT1-OD8-1
2 relay outputs
GRT1-ROS2
GRT1-IA4-1
4 AC inputs
GRT1-IA4-2
SmartSlice
I/O Units
Analog I/O Units
Temperature Input Unit
(resistance thermometer)
2 inputs (current or voltage)
GRT1-AD2
2 outputs (current)
GRT1-DA2C
2 outputs (voltage)
GRT1-DA2V
2 temperature inputs (Pt100 resistance thermometer)
GRT1-TS2P
2 temperature inputs (Pt1000 resistance thermometer)
GRT1-TS2PK
2 thermocouple inputs
GRT1-TS2T
1 counter input, 1 external output, NPN
GRT1-CT1
1 counter input, 1 external output, PNP
GRT1-CT1-1
For right-side turnback
(Used to divide a SmartSlice I/O Terminal into blocks)
GRT1-TBR
For left-side turnback
(Used to divide a SmartSlice I/O Terminal into blocks)
GRT1-TBL
Length: 1 m
GCN2-100
Counter Units
Turnback Units
Turnback Cable
--
System
Units
GRT1-PD2
Used if the total current consumption of the I/O Power Supply exceeds
4 A or to use a separate I/O power supply.
GRT1-PD2G
GRT1-PD8
I/O Power Feed Unit
GRT1-PD8-1
GRT1-PC8
Used to add V and G terminals for the I/O power supply.
GRT1-PC8-1
End Unit *1
Option
*1.
*2.
70
Terminal blocks
--
Required at the end of SmartSlice I/O Terminals.
GRT1-END
Terminal blocks (5 blocks)
GRT1-BT1-5
The End Unit is sold separately. (End Units are not included with Communications Units.)
Use the GCN2-100 as a set with the GRT1-TBR and GRT1-TBL.
Ordering Information
Read and Understand This Catalog
Please read and understand this catalog before purchasing the products. 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.
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IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT
LIABILITY.
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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 catalog.
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.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
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 catalog 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 document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,
typographical, or proofreading errors, or omissions.
2012.6
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2012 All Right Reserved.