Settings Communication Unit; Address Settings; Setting The Ethercat Node Address; Smartslice I/O Unit Number Allocation - Omron GRT1-ECT Operation Manual

5-2

Settings Communication Unit

Start the system, allocate I/O data of Slaves, and then start the EtherCAT communication.
For communication state details refer to "2-5 Communication State Transitions" in page 2 - 7.
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Address Settings

In order to identify the EtherCAT Communication Unit on the EtherCAT network, it needs to have a
unique node address. Using this unique address the EtherCAT Master Unit can transfer parameter
settings and exchange I/O data.
The EtherCAT node address is assigned using the rotary switches at the front of the Unit.
All individual SmartSlice I/O Units need a unique address to identify each of them to the GRT1-ECT
Unit. The GRT1-ECT Unit assigns this unique address automatically to each SmartSlice I/O Unit at
startup.
5-2-2

Setting the EtherCAT Node Address

The node address of the GRT1-ECT is set with the rotary switches at the front of the Unit.
The left rotary switch sets the ten's digit, and the right rotary switch sets the one's digit.
x1
x10
The valid address range is 00 to 99.
• Address 01 to 99 can be set as long as this number is unique in the network.
• With Address 00 the Communication Unit retrieves its node address from settings stored in its
memory. With configuration software (e.g. Sysmac Studio) this node address setting can changed.
Precautions for Correct Use
• Turn OFF the power supply of the GRT1-ECT before setting the node address.
• The factory default setting for the node address is 00, both in hardware and in memory.
• If the node address is duplicated on any other Unit then communication will not be achieved.
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SmartSlice I/O Unit Number Allocation

The SmartSlice I/O Unit numbers are used to identify the individual I/O Units in the SmartSlice system.
These unit numbers are assigned automatically at startup, when the power is turned ON. The
numbering starts from #1 and runs from left to right. It is not necessary for the user to set these
numbers.
GRT1-series EtherCAT Communication Unit - Operation Manual
EtherCAT node
address setting
5 GRT1-ECT Procedures
5
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