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2 Starting a Sample System
EtherCAT Communication Unit USER’S MANUAL (I574-E1)
2-5 Mounting and Wiring for the EtherCAT
Communication Unit
2
2-5-5 Node Address Settings for the EtherCAT Communication Unit
Set the rotary switches of the EtherCAT Communication Unit to determine the node address.
In the system configuration example used in this section, the settings are as follows.
Both 3G3AX-MX2-ECT and 3G3AX-RX-ECT can be used with the following settings.
Notes on setting are provided below for each Master Unit.
<CJ1W-NCx82 Master>
1 The EtherCAT Communication Unit uses input and output areas for 5 node addresses.
For this reason, when using the inverter with a fixed allocation, set 5 or larger number to the node
address of the next unit.
2 Node addresses can be set in a range of 17 to 80. Make sure the node addresses set for the Unit do
not overlap with other slave.
3 For the restrictions related to CJ1W-NCx82 Master, refer to Position Control Units
CJ1W-NC281/NC481/NC881/NCF81/NC482/NC882 OPERATION MANUAL (Cat No.W487).
<NJ501-1x00 Master>
1 Node addresses can be set in a range of 1 to 99*. Make sure the node addresses set for the Unit do
not overlap with other slave.
2 Unlike with the CJ1W-NCx82 master, the node address of the next unit can be set without intervals.
3 For the restrictions related to your NJ501-1x00, refer to NJ-series CPU Unit Software User’s Manual
(Cat No.W501).
* The setting range for the rotary switch.
Set the rotary switch to 00 in order to enable the node address setting by Sysmac Studio. Then, node
addresses can be set in a range of 1 to 192.
For details, refer to NJ-series CPU Unit Built-in EtherCAT® Port User’s Manual (Cat No.W505).
Note If a slave other than this product is also connected to the same network, set the unit by referring to its User
Manual. In such cases, check that the node addresses do not overlap with other units.
2-5-5 Node Address Settings for the EtherCAT Communication Unit
Node address settings
Inverter CJ1W-NCx82 Master NJ501-1x00 Master
1st unit Node address 17 1
Rotary switch x 10 Set to the 1 position. Set to the 0 position.
Rotary switch x 1 Set to the 7 position. Set to the 1 position.
2nd unit Node address 22 2
Rotary switch x 10 Set to the 2 position. Set to the 0 position.
Rotary switch x 1 Set to the 2 position. Set to the 2 position.
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